1# This file is in the public domain, so clarified as of 2# 2009-05-17 by Arthur David Olson. 3 4# This file is by no means authoritative; if you think you know better, 5# go ahead and edit the file (and please send any changes to 6# tz@iana.org for general use in the future). For more, please see 7# the file CONTRIBUTING in the tz distribution. 8 9# From Paul Eggert (2017-01-13): 10# 11# Unless otherwise specified, the source for data through 1990 is: 12# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 13# San Diego: ACS Publications, Inc. (2003). 14# Unfortunately this book contains many errors and cites no sources. 15# 16# Many years ago Gwillim Law wrote that a good source 17# for time zone data was the International Air Transport 18# Association's Standard Schedules Information Manual (IATA SSIM), 19# published semiannually. Law sent in several helpful summaries 20# of the IATA's data after 1990. Except where otherwise noted, 21# IATA SSIM is the source for entries after 1990. 22# 23# Another source occasionally used is Edward W. Whitman, World Time Differences, 24# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which 25# I found in the UCLA library. 26# 27# For data circa 1899, a common source is: 28# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. 29# https://www.jstor.org/stable/1774359 30# 31# For Russian data circa 1919, a source is: 32# Byalokoz EL. New Counting of Time in Russia since July 1, 1919. 33# (See the 'europe' file for a fuller citation.) 34# 35# A reliable and entertaining source about time zones is 36# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). 37# 38# The following alphabetic abbreviations appear in these tables: 39# std dst 40# LMT Local Mean Time 41# 2:00 EET EEST Eastern European Time 42# 2:00 IST IDT Israel 43# 5:30 IST India 44# 7:00 WIB west Indonesia (Waktu Indonesia Barat) 45# 8:00 WITA central Indonesia (Waktu Indonesia Tengah) 46# 8:00 CST China 47# 8:30 KST KDT Korea when at +0830 48# 9:00 WIT east Indonesia (Waktu Indonesia Timur) 49# 9:00 JST JDT Japan 50# 9:00 KST KDT Korea when at +09 51# 9:30 ACST Australian Central Standard Time 52# Otherwise, these tables typically use numeric abbreviations like +03 53# and +0330 for integer hour and minute UT offsets. Although earlier 54# editions invented alphabetic time zone abbreviations for every 55# offset, this did not reflect common practice. 56# 57# See the 'europe' file for Russia and Turkey in Asia. 58 59# From Guy Harris: 60# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as 61# additional information from Tom Yap, Sun Microsystems Intercontinental 62# Technical Support (including a page from the Official Airline Guide - 63# Worldwide Edition). 64 65############################################################################### 66 67# These rules are stolen from the 'europe' file. 68# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 69Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S 70Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 - 71Rule EUAsia 1996 max - Oct lastSun 1:00u 0 - 72Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S 73Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 - 74Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 - 75Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S 76Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 - 77Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 - 78Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S 79Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 - 80 81# Afghanistan 82# Zone NAME GMTOFF RULES FORMAT [UNTIL] 83Zone Asia/Kabul 4:36:48 - LMT 1890 84 4:00 - +04 1945 85 4:30 - +0430 86 87# Armenia 88# From Paul Eggert (2006-03-22): 89# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST) 90# in spring 1991, then to 4:00 with no DST in fall 1995, then 91# readopting Russian DST in 1997. Go with Shanks & Pottenger, even 92# when they disagree with others. Edgar Der-Danieliantz 93# reported (1996-05-04) that Yerevan probably wouldn't use DST 94# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that 95# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991, 96# but started switching at 3:00s in 1998. 97 98# From Arthur David Olson (2011-06-15): 99# While Russia abandoned DST in 2011, Armenia may choose to 100# follow Russia's "old" rules. 101 102# From Alexander Krivenyshev (2012-02-10): 103# According to News Armenia, on Feb 9, 2012, 104# http://newsarmenia.ru/society/20120209/42609695.html 105# 106# The Armenia National Assembly adopted final reading of Amendments to the 107# Law "On procedure of calculation time on the territory of the Republic of 108# Armenia" according to which Armenia [is] abolishing Daylight Saving Time. 109# or 110# (brief) 111# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html 112# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 113Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S 114Rule Armenia 2011 only - Oct lastSun 2:00s 0 - 115# Zone NAME GMTOFF RULES FORMAT [UNTIL] 116Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 117 3:00 - +03 1957 Mar 118 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s 119 3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s 120 4:00 - +04 1997 121 4:00 RussiaAsia +04/+05 2011 122 4:00 Armenia +04/+05 123 124# Azerbaijan 125 126# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23): 127# According to the resolution of Cabinet of Ministers, 1997 128# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17). 129# http://code.az/files/daylight_res.pdf 130 131# From Steffen Thorsen (2016-03-17): 132# ... the Azerbaijani Cabinet of Ministers has cancelled switching to 133# daylight saving time.... 134# https://www.azernews.az/azerbaijan/94137.html 135# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html 136# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html 137 138# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 139Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S 140Rule Azer 1997 2015 - Oct lastSun 5:00 0 - 141# Zone NAME GMTOFF RULES FORMAT [UNTIL] 142Zone Asia/Baku 3:19:24 - LMT 1924 May 2 143 3:00 - +03 1957 Mar 144 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s 145 3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s 146 4:00 - +04 1996 147 4:00 EUAsia +04/+05 1997 148 4:00 Azer +04/+05 149 150# Bahrain 151# See Asia/Qatar. 152 153# Bangladesh 154# From Alexander Krivenyshev (2009-05-13): 155# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce 156# Daylight Saving Time from June 16 to Sept 30 157# 158# Bangladesh to introduce daylight saving time likely from June 16 159# http://www.asiantribune.com/?q=node/17288 160# http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html 161# 162# "... Bangladesh government has decided to switch daylight saving time from 163# June 164# 16 till September 30 in a bid to ensure maximum use of daylight to cope with 165# crippling power crisis. " 166# 167# The switch will remain in effect from June 16 to Sept 30 (2009) but if 168# implemented the next year, it will come in force from April 1, 2010 169 170# From Steffen Thorsen (2009-06-02): 171# They have finally decided now, but changed the start date to midnight between 172# the 19th and 20th, and they have not set the end date yet. 173# 174# Some sources: 175# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601 176# http://bdnews24.com/details.php?id=85889&cid=2 177# 178# Our wrap-up: 179# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html 180 181# From A. N. M. Kamrus Saadat (2009-06-15): 182# Finally we've got the official mail regarding DST start time where DST start 183# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh 184# Telecommunication Regulatory Commission). 185# 186# No DST end date has been announced yet. 187 188# From Alexander Krivenyshev (2009-09-25): 189# Bangladesh won't go back to Standard Time from October 1, 2009, 190# instead it will continue DST measure till the cabinet makes a fresh decision. 191# 192# Following report by same newspaper-"The Daily Star Friday": 193# "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1" 194# http://www.thedailystar.net/newDesign/news-details.php?nid=107021 195# http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html 196 197# From Steffen Thorsen (2009-10-13): 198# IANS (Indo-Asian News Service) now reports: 199# Bangladesh has decided that the clock advanced by an hour to make 200# maximum use of daylight hours as an energy saving measure would 201# "continue for an indefinite period." 202# 203# One of many places where it is published: 204# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html 205 206# From Alexander Krivenyshev (2009-12-24): 207# According to Bangladesh newspaper "The Daily Star," 208# Bangladesh will change its clock back to Standard Time on Dec 31, 2009. 209# 210# Clock goes back 1-hr on Dec 31 night. 211# http://www.thedailystar.net/newDesign/news-details.php?nid=119228 212# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html 213# 214# "...The government yesterday decided to put the clock back by one hour 215# on December 31 midnight and the new time will continue until March 31, 216# 2010 midnight. The decision came at a cabinet meeting at the Prime 217# Minister's Office last night..." 218 219# From Alexander Krivenyshev (2010-03-22): 220# According to Bangladesh newspaper "The Daily Star," 221# Cabinet cancels Daylight Saving Time 222# http://www.thedailystar.net/newDesign/latest_news.php?nid=22817 223# http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html 224 225# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 226Rule Dhaka 2009 only - Jun 19 23:00 1:00 S 227Rule Dhaka 2009 only - Dec 31 24:00 0 - 228 229# Zone NAME GMTOFF RULES FORMAT [UNTIL] 230Zone Asia/Dhaka 6:01:40 - LMT 1890 231 5:53:20 - HMT 1941 Oct # Howrah Mean Time? 232 6:30 - +0630 1942 May 15 233 5:30 - +0530 1942 Sep 234 6:30 - +0630 1951 Sep 30 235 6:00 - +06 2009 236 6:00 Dhaka +06/+07 237 238# Bhutan 239# Zone NAME GMTOFF RULES FORMAT [UNTIL] 240Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu 241 5:30 - +0530 1987 Oct 242 6:00 - +06 243 244# British Indian Ocean Territory 245# Whitman and the 1995 CIA time zone map say 5:00, but the 246# 1997 and later maps say 6:00. Assume the switch occurred in 1996. 247# We have no information as to when standard time was introduced; 248# assume it occurred in 1907, the same year as Mauritius (which 249# then contained the Chagos Archipelago). 250# Zone NAME GMTOFF RULES FORMAT [UNTIL] 251Zone Indian/Chagos 4:49:40 - LMT 1907 252 5:00 - +05 1996 253 6:00 - +06 254 255# Brunei 256# Zone NAME GMTOFF RULES FORMAT [UNTIL] 257Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan 258 7:30 - +0730 1933 259 8:00 - +08 260 261# Burma / Myanmar 262 263# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon. 264 265# From Paul Eggert (2017-04-20): 266# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is 267# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead 268# of Greenwich." This refers to the period before Burma's transition to +0630, 269# a transition for which Shanks is the only source. 270 271# Zone NAME GMTOFF RULES FORMAT [UNTIL] 272Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon 273 6:24:47 - RMT 1920 # Rangoon local time 274 6:30 - +0630 1942 May 275 9:00 - +09 1945 May 3 276 6:30 - +0630 277 278# Cambodia 279# See Asia/Bangkok. 280 281 282# China 283 284# From Guy Harris: 285# People's Republic of China. Yes, they really have only one time zone. 286 287# From Bob Devine (1988-01-28): 288# No they don't. See TIME mag, 1986-02-17 p.52. Even though 289# China is across 4 physical time zones, before Feb 1, 1986 only the 290# Peking (Beijing) time zone was recognized. Since that date, China 291# has two of 'em - Peking's and Ürümqi (named after the capital of 292# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it. 293# 294# . . .I just deleted the DST table and this editor makes it too 295# painful to suck in another copy. So, here is what I have for 296# DST start/end dates for Peking's time zone (info from AP): 297# 298# 1986 May 4 - Sept 14 299# 1987 mid-April - ?? 300 301# From U. S. Naval Observatory (1989-01-19): 302# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN 303# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10 304 305# From Paul Eggert (2008-02-11): 306# Jim Mann, "A clumsy embrace for another western custom: China on daylight 307# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began 308# observing daylight saving time in 1986. 309 310# From Paul Eggert (2014-06-30): 311# Shanks & Pottenger have China switching to a single time zone in 1980, but 312# this doesn't seem to be correct. They also write that China observed summer 313# DST from 1986 through 1991, which seems to match the above commentary, so 314# go with them for DST rules as follows: 315# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 316Rule Shang 1940 only - Jun 3 0:00 1:00 D 317Rule Shang 1940 1941 - Oct 1 0:00 0 S 318Rule Shang 1941 only - Mar 16 0:00 1:00 D 319Rule PRC 1986 only - May 4 0:00 1:00 D 320Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S 321Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D 322 323# From Anthony Fok (2001-12-20): 324# BTW, I did some research on-line and found some info regarding these five 325# historic timezones from some Taiwan websites. And yes, there are official 326# Chinese names for these locales (before 1949). 327# 328# From Jesper Nørgaard Welen (2006-07-14): 329# I have investigated the timezones around 1970 on the 330# https://www.astro.com/atlas site [with provinces and county 331# boundaries summarized below].... A few other exceptions were two 332# counties on the Sichuan side of the Xizang-Sichuan border, 333# counties Dege and Baiyu which lies on the Sichuan side and are 334# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege 335# county is GMT+8 according to astro.com while Baiyu county is GMT+6 336# (could be true), for the moment I am assuming that those two 337# counties are mistakes in the astro.com data. 338 339# From Paul Eggert (2017-01-05): 340# Alois Treindl kindly sent me translations of the following two sources: 341# 342# (1) 343# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China) 344# Beijing Time at the Beginning of the PRC 345# China Historical Materials of Science and Technology 346# (Zhongguo ke ji shi liao, 中国科技史料), Vol. 24, No. 1 (2003) 347# It gives evidence that at the beginning of the PRC, Beijing time was 348# officially apparent solar time! However, Guo also says that the 349# evidence is dubious, as the relevant institute of astronomy had not 350# been taken over by the PRC yet. It's plausible that apparent solar 351# time was announced but never implemented, and that people continued 352# to use UT+8. As the Shanghai radio station (and I presume the 353# observatory) was still under control of French missionaries, it 354# could well have ignored any such mandate. 355# 356# (2) 357# Guo Qing-sheng (Shaanxi Astronomical Observatory, CAS, Xi'an 710600, China) 358# A Study on the Standard Time Changes for the Past 100 Years in China 359# [undated and unknown publication location] 360# It says several things: 361# * The Qing dynasty used local apparent solar time throughout China. 362# * The Republic of China instituted Beijing mean solar time effective 363# the official calendar book of 1914. 364# * The French Concession in Shanghai set up signal stations in 365# French docks in the 1890s, controlled by Xujiahui (Zikawei) 366# Observatory and set to local mean time. 367# * "From the end of the 19th century" it changed to UT+8. 368# * Chinese Customs (by then reduced to a tool of foreign powers) 369# eventually standardized on this time for all ports, and it 370# became used by railways as well. 371# * In 1918 the Central Observatory proposed dividing China into 372# five time zones (see below for details). This caught on 373# at first only in coastal areas observing UT+8. 374# * During WWII all of China was in theory was at UT+7. In practice 375# this was ignored in the west, and I presume was ignored in 376# Japanese-occupied territory. 377# * Japanese-occupied Manchuria was at UT+9, i.e., Japan time. 378# * The five-zone plan was resurrected after WWII and officially put into 379# place (with some modifications) in March 1948. It's not clear 380# how well it was observed in areas under Nationalist control. 381# * The People's Liberation Army used UT+8 during the civil war. 382# 383# An AP article "Shanghai Internat'l Area Little Changed" in the 384# Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is 385# different - the occupied districts going by Tokyo time, an hour 386# ahead of that prevailing in the rest of Shanghai." Guess that the 387# Xujiahui Observatory was under French control and stuck with UT +08. 388# 389# In earlier versions of this file, China had many separate Zone entries, but 390# this was based on what were apparently incorrect data in Shanks & Pottenger. 391# This has now been simplified to the two entries Asia/Shanghai and 392# Asia/Urumqi, with the others being links for backward compatibility. 393# Proposed in 1918 and theoretically in effect until 1949 (although in practice 394# mainly observed in coastal areas), the five zones were: 395# 396# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30 397# Now part of Asia/Shanghai; its pre-1970 times are not recorded here. 398# Heilongjiang (except Mohe county), Jilin 399# 400# Zhongyuan Time ("Central plain Time") UT +08 401# Now part of Asia/Shanghai. 402# most of China 403# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest. 404# Guo says Shanghai switched to UT +08 "from the end of the 19th century". 405# 406# Long-shu Time (probably as Long and Shu were two names of the area) UT +07 407# Now part of Asia/Shanghai; its pre-1970 times are not recorded here. 408# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan; 409# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong 410# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing, 411# Yangchun, Yangjiang, Yu'nan, and Yunfu. 412# 413# Xin-zang Time ("Xinjiang-Tibet Time") UT +06 414# This region is now part of either Asia/Urumqi or Asia/Shanghai with 415# current boundaries uncertain; times before 1970 for areas that 416# disagree with Ürümqi or Shanghai are not recorded here. 417# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai; 418# the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang, 419# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi; 420# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi; 421# east Xinjiang, including Ürümqi, Turpan, Karamay, Korla, Minfeng, Jinghe, 422# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin, 423# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami, 424# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan. 425# 426# Kunlun Time UT +05:30 427# This region is now in the same status as Xin-zang Time (see above). 428# West Tibet, including Pulan, Aheqi, Shufu, Shule; 429# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke, 430# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding, 431# and Yarkand. 432 433# From Luther Ma (2009-10-17): 434# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in 435# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time, 436# but have no need of it. All planes, trains, and schools function on 437# what is called "Beijing time." When Han make an appointment in Chinese 438# they implicitly use Beijing time. 439# 440# On the other hand, ethnic Uyghurs, who make up about half the 441# population of Xinjiang, typically use "Xinjiang time" which is two 442# hours behind Beijing time, or UT +06. The government of the Xinjiang 443# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as 444# local governments such as the Ürümqi city government use both times in 445# publications, referring to what is popularly called Xinjiang time as 446# "Ürümqi time." When Uyghurs make an appointment in the Uyghur language 447# they almost invariably use Xinjiang time. 448# 449# (Their ethnic Han compatriots would typically have no clue of its 450# widespread use, however, because so extremely few of them are fluent in 451# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.) 452# 453# (...As with the rest of China there was a brief interval ending in 1990 454# or 1991 when summer time was in use. The confusion was severe, with 455# the province not having dual times but four times in use at the same 456# time. Some areas remained on standard Xinjiang time or Beijing time and 457# others moving their clocks ahead.) 458 459# From Luther Ma (2009-11-19): 460# With the risk of being redundant to previous answers these are the most common 461# English "transliterations" (w/o using non-English symbols): 462# 463# 1. Wulumuqi... 464# 2. Kashi... 465# 3. Urumqi... 466# 4. Kashgar... 467# ... 468# 5. It seems that Uyghurs in Ürümqi has been using Xinjiang since at least the 469# 1960's. I know of one Han, now over 50, who grew up in the surrounding 470# countryside and used Xinjiang time as a child. 471# 472# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any 473# start date for Xinjiang time. 474# 475# Without having access to local historical records, nor the ability to legally 476# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur 477# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also 478# not be using Beijing time, but some local time.) 479 480# From David Cochrane (2014-03-26): 481# Just a confirmation that Ürümqi time was implemented in Ürümqi on 1 Feb 1986: 482# https://content.time.com/time/magazine/article/0,9171,960684,00.html 483 484# From Luther Ma (2014-04-22): 485# I have interviewed numerous people of various nationalities and from 486# different localities in Xinjiang and can confirm the information in Guo's 487# report regarding Xinjiang, as well as the Time article reference by David 488# Cochrane. Whether officially recognized or not (and both are officially 489# recognized), two separate times have been in use in Xinjiang since at least 490# the Cultural Revolution: Xinjiang Time (XJT), aka Ürümqi Time or local time; 491# and Beijing Time. There is no confusion in Xinjiang as to which name refers 492# to which time. Both are widely used in the province, although in some 493# population groups might be use one to the exclusion of the other. The only 494# problem is that computers and smart phones list Ürümqi (or Kashgar) as 495# having the same time as Beijing. 496 497# From Paul Eggert (2014-06-30): 498# In the early days of the PRC, Tibet was given its own time zone (UT +06) 499# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun, 500# Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN 501# 978-0231142861 (2008), translator's introduction by Matthew Akester, p x. 502# As this is before our 1970 cutoff, Tibet doesn't need a separate zone. 503# 504# Xinjiang Time is well-documented as being officially recognized. E.g., see 505# "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government" 506# <http://www.sinkiang.gov.cn/service/ourworking/> (2014-04-22). 507# Unfortunately, we have no good records of time in Xinjiang before 1986. 508# During the 20th century parts of Xinjiang were ruled by the Qing dynasty, 509# the Republic of China, various warlords, the First and Second East Turkestan 510# Republics, the Soviet Union, the Kuomintang, and the People's Republic of 511# China, and tracking down all these organizations' timekeeping rules would be 512# quite a trick. Approximate this lost history by a transition from LMT to 513# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren, 514# which happens to be the date given by Shanks & Pottenger (no doubt as a 515# guess) as the transition from LMT. Ignore the usage of +08 before 516# 1986-02-01 under the theory that the transition date to +08 is unknown and 517# that the sort of users who prefer Asia/Urumqi now typically ignored the 518# +08 mandate back then. 519 520# Zone NAME GMTOFF RULES FORMAT [UNTIL] 521# Beijing time, used throughout China; represented by Shanghai. 522Zone Asia/Shanghai 8:05:43 - LMT 1901 523 8:00 Shang C%sT 1949 524 8:00 PRC C%sT 525# Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi 526# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.) 527Zone Asia/Urumqi 5:50:20 - LMT 1928 528 6:00 - +06 529 530 531# Hong Kong (Xianggang) 532 533# Milne gives 7:36:41.7; round this. 534 535# From Lee Yiu Chung (2009-10-24): 536# I found there are some mistakes for the...DST rule for Hong 537# Kong. [According] to the DST record from Hong Kong Observatory (actually, 538# it is not [an] observatory, but the official meteorological agency of HK, 539# and also serves as the official timing agency), there are some missing 540# and incorrect rules. Although the exact switch over time is missing, I 541# think 3:30 is correct. The official DST record for Hong Kong can be 542# obtained from 543# http://www.hko.gov.hk/gts/time/Summertime.htm 544 545# From Arthur David Olson (2009-10-28): 546# Here are the dates given at 547# http://www.hko.gov.hk/gts/time/Summertime.htm 548# as of 2009-10-28: 549# Year Period 550# 1941 1 Apr to 30 Sep 551# 1942 Whole year 552# 1943 Whole year 553# 1944 Whole year 554# 1945 Whole year 555# 1946 20 Apr to 1 Dec 556# 1947 13 Apr to 30 Dec 557# 1948 2 May to 31 Oct 558# 1949 3 Apr to 30 Oct 559# 1950 2 Apr to 29 Oct 560# 1951 1 Apr to 28 Oct 561# 1952 6 Apr to 25 Oct 562# 1953 5 Apr to 1 Nov 563# 1954 21 Mar to 31 Oct 564# 1955 20 Mar to 6 Nov 565# 1956 18 Mar to 4 Nov 566# 1957 24 Mar to 3 Nov 567# 1958 23 Mar to 2 Nov 568# 1959 22 Mar to 1 Nov 569# 1960 20 Mar to 6 Nov 570# 1961 19 Mar to 5 Nov 571# 1962 18 Mar to 4 Nov 572# 1963 24 Mar to 3 Nov 573# 1964 22 Mar to 1 Nov 574# 1965 18 Apr to 17 Oct 575# 1966 17 Apr to 16 Oct 576# 1967 16 Apr to 22 Oct 577# 1968 21 Apr to 20 Oct 578# 1969 20 Apr to 19 Oct 579# 1970 19 Apr to 18 Oct 580# 1971 18 Apr to 17 Oct 581# 1972 16 Apr to 22 Oct 582# 1973 22 Apr to 21 Oct 583# 1973/74 30 Dec 73 to 20 Oct 74 584# 1975 20 Apr to 19 Oct 585# 1976 18 Apr to 17 Oct 586# 1977 Nil 587# 1978 Nil 588# 1979 13 May to 21 Oct 589# 1980 to Now Nil 590# The page does not give start or end times of day. 591# The page does not give a start date for 1942. 592# The page does not givw an end date for 1945. 593# The Japanese occupation of Hong Kong began on 1941-12-25. 594# The Japanese surrender of Hong Kong was signed 1945-09-15. 595# For lack of anything better, use start of those days as the transition times. 596 597# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 598Rule HK 1941 only - Apr 1 3:30 1:00 S 599Rule HK 1941 only - Sep 30 3:30 0 - 600Rule HK 1946 only - Apr 20 3:30 1:00 S 601Rule HK 1946 only - Dec 1 3:30 0 - 602Rule HK 1947 only - Apr 13 3:30 1:00 S 603Rule HK 1947 only - Dec 30 3:30 0 - 604Rule HK 1948 only - May 2 3:30 1:00 S 605Rule HK 1948 1951 - Oct lastSun 3:30 0 - 606Rule HK 1952 only - Oct 25 3:30 0 - 607Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S 608Rule HK 1953 only - Nov 1 3:30 0 - 609Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S 610Rule HK 1954 only - Oct 31 3:30 0 - 611Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - 612Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S 613Rule HK 1965 1976 - Oct Sun>=16 3:30 0 - 614Rule HK 1973 only - Dec 30 3:30 1:00 S 615Rule HK 1979 only - May Sun>=8 3:30 1:00 S 616Rule HK 1979 only - Oct Sun>=16 3:30 0 - 617# Zone NAME GMTOFF RULES FORMAT [UNTIL] 618Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 619 8:00 HK HK%sT 1941 Dec 25 620 9:00 - JST 1945 Sep 15 621 8:00 HK HK%sT 622 623############################################################################### 624 625# Taiwan 626 627# From smallufo (2010-04-03): 628# According to Taiwan's CWB [Central Weather Bureau], 629# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm 630# Taipei has DST in 1979 between July 1st and Sep 30. 631 632# From Yu-Cheng Chuang (2013-07-12): 633# On Dec 28, 1895, the Meiji Emperor announced Ordinance No. 167 of 634# Meiji Year 28 "The clause about standard time", mentioned that 635# Taiwan and Penghu Islands, as well as Yaeyama and Miyako Islands 636# (both in Okinawa) adopt the Western Standard Time which is based on 637# 120E. The adoption began from Jan 1, 1896. The original text can be 638# found on Wikisource: 639# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時) 640# ... This could be the first adoption of time zone in Taiwan, because 641# during the Qing Dynasty, it seems that there was no time zone 642# declared officially. 643# 644# Later, in the beginning of World War II, on Sep 25, 1937, the Showa 645# Emperor announced Ordinance No. 529 of Showa Year 12 "The clause of 646# revision in the ordinance No. 167 of Meiji year 28 about standard 647# time", in which abolished the adoption of Western Standard Time in 648# western islands (listed above), which means the whole Japan 649# territory, including later occupations, adopt Japan Central Time 650# (UT+9). The adoption began on Oct 1, 1937. The original text can 651# be found on Wikisource: 652# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件 653# 654# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937. 655 656# From Yu-Cheng Chuang (2014-07-02): 657# I've found more evidence about when the time zone was switched from UT+9 658# back to UT+8 after WW2. I believe it was on Sep 21, 1945. In a document 659# during Japanese era [1] in which the officer told the staff to change time 660# zone back to Western Standard Time (UT+8) on Sep 21. And in another 661# history page of National Cheng Kung University [2], on Sep 21 there is a 662# note "from today, switch back to Western Standard Time". From these two 663# materials, I believe that the time zone change happened on Sep 21. And 664# today I have found another monthly journal called "The Astronomical Herald" 665# from The Astronomical Society of Japan [3] in which it mentioned the fact 666# that: 667# 668# 1. Standard Time of the Country (Japan) was adopted on Jan 1, 1888, using 669# the time at 135E (GMT+9) 670# 671# 2. Standard Time of the Country was renamed to Central Standard Time, on Jan 672# 1, 1898, and on the same day, the new territories Taiwan and Penghu islands, 673# as well as Yaeyama and Miyako islands, adopted a new time zone called 674# Western Standard Time, which is in GMT+8. 675# 676# 3. Western Standard Time was deprecated on Sep 30, 1937. From then all the 677# territories of Japan adopted the same time zone, which is Central Standard 678# Time. 679# 680# [1] Academica Historica, Taiwan: 681# http://163.29.208.22:8080/govsaleShowImage/connect_img.php?s=00101738900090036&e=00101738900090037 682# [2] Nat'l Cheng Kung University 70th Anniversary Special Site: 683# http://www.ncku.edu.tw/~ncku70/menu/001/01_01.htm 684# [3] Yukio Niimi, The Standard Time in Japan (1997), p.475: 685# http://www.asj.or.jp/geppou/archive_open/1997/pdf/19971001c.pdf 686 687# Yu-Cheng Chuang (2014-07-03): 688# I finally have found the real official gazette about changing back to 689# Western Standard Time on Sep 21 in Taiwan. It's Taiwan Governor-General 690# Bulletin No. 386 in Showa 20 years (1945), published on Sep 19, 1945. [1] ... 691# [It] abolishes Bulletin No. 207 in Showa 12 years (1937), which is a local 692# bulletin in Taiwan for that Ordinance No. 529. It also mentioned that 1am on 693# Sep 21, 1945 will be 12am on Sep 21. I think this bulletin is much more 694# official than the one I mentioned in my first mail, because it's from the 695# top-level government in Taiwan. If you're going to quote any resource, this 696# would be a good one. 697# [1] Taiwan Governor-General Gazette, No. 1018, Sep 19, 1945: 698# http://db2.th.gov.tw/db2/view/viewImg.php?imgcode=0072031018a&num=19&bgn=019&end=019&otherImg=&type=gener 699 700# From Yu-Cheng Chuang (2014-07-02): 701# In 1946, DST in Taiwan was from May 15 and ended on Sep 30. The info from 702# Central Weather Bureau website was not correct. 703# 704# Original Bulletin: 705# http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF 706# http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0 (cont.) 707# 708# In 1947, DST in Taiwan was expanded to Oct 31. There is a backup of that 709# telegram announcement from Taiwan Province Government: 710# 711# http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431 712# 713# Here is a brief translation: 714# 715# The Summer Time this year is adopted from midnight Apr 15 until Sep 20 716# midnight. To save (energy?) consumption, we're expanding Summer Time 717# adoption till Oct 31 midnight. 718# 719# The Central Weather Bureau website didn't mention that, however it can 720# be found from historical government announcement database. 721 722# From Paul Eggert (2014-07-03): 723# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01 724# until 1945-09-21 at 01:00, overriding Shanks & Pottenger. 725# Likewise, use Yu-Cheng Chuang's data for DST in Taiwan. 726 727# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 728Rule Taiwan 1946 only - May 15 0:00 1:00 D 729Rule Taiwan 1946 only - Oct 1 0:00 0 S 730Rule Taiwan 1947 only - Apr 15 0:00 1:00 D 731Rule Taiwan 1947 only - Nov 1 0:00 0 S 732Rule Taiwan 1948 1951 - May 1 0:00 1:00 D 733Rule Taiwan 1948 1951 - Oct 1 0:00 0 S 734Rule Taiwan 1952 only - Mar 1 0:00 1:00 D 735Rule Taiwan 1952 1954 - Nov 1 0:00 0 S 736Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D 737Rule Taiwan 1955 1961 - Oct 1 0:00 0 S 738Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D 739Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D 740Rule Taiwan 1974 1975 - Oct 1 0:00 0 S 741Rule Taiwan 1979 only - Jul 1 0:00 1:00 D 742Rule Taiwan 1979 only - Oct 1 0:00 0 S 743 744# Zone NAME GMTOFF RULES FORMAT [UNTIL] 745# Taipei or Taibei or T'ai-pei 746Zone Asia/Taipei 8:06:00 - LMT 1896 Jan 1 747 8:00 - CST 1937 Oct 1 748 9:00 - JST 1945 Sep 21 1:00 749 8:00 Taiwan C%sT 750 751# Macau (Macao, Aomen) 752# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 753Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D 754Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S 755Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D 756Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D 757Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D 758Rule Macau 1965 only - Oct 31 0:00 0 S 759Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D 760Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S 761Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D 762Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S 763Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S 764Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D 765Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D 766Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S 767# Zone NAME GMTOFF RULES FORMAT [UNTIL] 768Zone Asia/Macau 7:34:20 - LMT 1912 Jan 1 769 8:00 Macau C%sT 770 771 772############################################################################### 773 774# Cyprus 775 776# Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT. 777# IATA SSIM (1998-09) has Cyprus using EU rules for the first time. 778 779# From Paul Eggert (2016-09-09): 780# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's 781# lead and switched from +02/+03 to +03 year-round. 782# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/ 783# 784# From Even Scharning (2016-10-31): 785# Looks like the time zone split in Cyprus went through last night. 786# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/ 787 788# From Paul Eggert (2017-10-18): 789# Northern Cyprus will reinstate winter time on October 29, thus 790# staying in sync with the rest of Cyprus. See: Anastasiou A. 791# Cyprus to remain united in time. Cyprus Mail 2017-10-17. 792# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/ 793 794# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 795Rule Cyprus 1975 only - Apr 13 0:00 1:00 S 796Rule Cyprus 1975 only - Oct 12 0:00 0 - 797Rule Cyprus 1976 only - May 15 0:00 1:00 S 798Rule Cyprus 1976 only - Oct 11 0:00 0 - 799Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S 800Rule Cyprus 1977 only - Sep 25 0:00 0 - 801Rule Cyprus 1978 only - Oct 2 0:00 0 - 802Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 - 803Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S 804# Zone NAME GMTOFF RULES FORMAT [UNTIL] 805Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14 806 2:00 Cyprus EE%sT 1998 Sep 807 2:00 EUAsia EE%sT 808Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14 809 2:00 Cyprus EE%sT 1998 Sep 810 2:00 EUAsia EE%sT 2016 Sep 8 811 3:00 - +03 2017 Oct 29 1:00u 812 2:00 EUAsia EE%sT 813 814# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72. 815# However, for various reasons many users expect to find it under Europe. 816Link Asia/Nicosia Europe/Nicosia 817 818# Georgia 819# From Paul Eggert (1994-11-19): 820# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward 821# an hour recently, due to a law proposed by Zurab Murvanidze, 822# an MP who went on a hunger strike for 11 days to force discussion about it! 823# We have no details, but we'll guess they didn't move the clocks back in fall. 824# 825# From Mathew Englander, quoting AP (1996-10-23 13:05-04): 826# Instead of putting back clocks at the end of October, Georgia 827# will stay on daylight savings time this winter to save energy, 828# President Eduard Shevardnadze decreed Wednesday. 829# 830# From the BBC via Joseph S. Myers (2004-06-27): 831# 832# Georgia moved closer to Western Europe on Sunday... The former Soviet 833# republic has changed its time zone back to that of Moscow. As a result it 834# is now just four hours ahead of Greenwich Mean Time, rather than five hours 835# ahead. The switch was decreed by the pro-Western president of Georgia, 836# Mikheil Saakashvili, who said the change was partly prompted by the process 837# of integration into Europe. 838 839# From Teimuraz Abashidze (2005-11-07): 840# Government of Georgia ... decided to NOT CHANGE daylight savings time on 841# [Oct.] 30, as it was done before during last more than 10 years. 842# Currently, we are in fact GMT +4:00, as before 30 October it was GMT 843# +3:00.... The problem is, there is NO FORMAL LAW or governmental document 844# about it. As far as I can find, I was told, that there is no document, 845# because we just DIDN'T ISSUE document about switching to winter time.... 846# I don't know what can be done, especially knowing that some years ago our 847# DST rules where changed THREE TIMES during one month. 848 849# Milne 1899 says Tbilisi (Tiflis) time was 2:59:05.7. 850# Byalokoz 1919 says Georgia was 2:59:11. 851# Go with Byalokoz. 852 853# Zone NAME GMTOFF RULES FORMAT [UNTIL] 854Zone Asia/Tbilisi 2:59:11 - LMT 1880 855 2:59:11 - TBMT 1924 May 2 # Tbilisi Mean Time 856 3:00 - +03 1957 Mar 857 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s 858 3:00 RussiaAsia +03/+04 1992 859 3:00 E-EurAsia +03/+04 1994 Sep lastSun 860 4:00 E-EurAsia +04/+05 1996 Oct lastSun 861 4:00 1:00 +05 1997 Mar lastSun 862 4:00 E-EurAsia +04/+05 2004 Jun 27 863 3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00 864 4:00 - +04 865 866# East Timor 867 868# See Indonesia for the 1945 transition. 869 870# From João Carrascalão, brother of the former governor of East Timor, in 871# East Timor may be late for its millennium 872# <https://etan.org/et99c/december/26-31/30ETMAY.htm> (1999-12-26/31): 873# Portugal tried to change the time forward in 1974 because the sun 874# rises too early but the suggestion raised a lot of problems with the 875# Timorese and I still don't think it would work today because it 876# conflicts with their way of life. 877 878# From Paul Eggert (2000-12-04): 879# We don't have any record of the above attempt. 880# Most likely our records are incomplete, but we have no better data. 881 882# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General 883# http://www.hri.org/news/world/undh/2000/00-08-16.undh.html 884# (2000-08-16): 885# The Cabinet of the East Timor Transition Administration decided 886# today to advance East Timor's time by one hour. The time change, 887# which will be permanent, with no seasonal adjustment, will happen at 888# midnight on Saturday, September 16. 889 890# Zone NAME GMTOFF RULES FORMAT [UNTIL] 891Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1 892 8:00 - +08 1942 Feb 21 23:00 893 9:00 - +09 1976 May 3 894 8:00 - +08 2000 Sep 17 0:00 895 9:00 - +09 896 897# India 898 899# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic 900# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/ 901# (2015-12-22): 902# In January 1906, several thousand cotton-mill workers rioted on the 903# outskirts of Bombay.... They were protesting the proposed abolition of 904# local time in favor of Indian Standard Time.... Journalists called this 905# dispute the "Battle of the Clocks." It lasted nearly half a century. 906 907# From Paul Eggert (2017-04-20): 908# Good luck trying to nail down old timekeeping records in India. 909# "... in the nineteenth century ... Madras Observatory took its magnetic 910# measurements on Göttingen time, its meteorological measurements on Madras 911# (local) time, dropped its time ball on Greenwich (ocean navigator's) time, 912# and distributed civil (local time)." -- Bartky IR. Selling the true time: 913# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19. 914# "A more potent cause of resistance to the general adoption of the present 915# standard time lies in the fact that it is Madras time. The citizen of 916# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of 917# his city being the Capital of India, and - for a part of the year - the Seat 918# of the Supreme Government, alike look down on Madras, and refuse to change 919# the time they are using, for that of what they regard as a benighted 920# Presidency; while Madras, having for long given the standard time to the 921# rest of India, would resist the adoption of any other Indian standard in its 922# place." -- Oldham RD. On Time in India: a suggestion for its improvement. 923# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55. 924# 925# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the 926# only government observatory' - was suggested as a standard railway time, 927# first to be adopted on the Great Indian Peninsular Railway (GIPR).... 928# Calcutta, Bombay, and Karachi, were to be allowed to continue with their 929# local time for civil purposes." - Prasad R. Tracks of Change: Railways and 930# Everyday Life in Colonial India. Cambridge University Press (2016), 145. 931# 932# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8. 933# https://archive.org/details/in.ernet.dli.2015.282212 934# This lists +052110 as Madras local time used in railways, and says that on 935# 1906-01-01 railways and telegraphs in India switched to +0530. Some 936# municipalities retained their former time, and the time in Calcutta 937# continued to depend on whether you were at the railway station or at 938# government offices. Government time was at +055320 (according to Shanks) or 939# at +0554 (according to the Indian Year Book). Railway time is more 940# appropriate for our purposes, as it was better documented, it is what we do 941# elsewhere (e.g., Europe/London before 1880), and after 1906 it was 942# consistent in the region now identified by Asia/Kolkata. So, use railway 943# time for 1870-1941. Shanks is our only (and dubious) source for the 944# 1941-1945 data. 945 946# Zone NAME GMTOFF RULES FORMAT [UNTIL] 947Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata 948 5:53:20 - HMT 1870 # Howrah Mean Time? 949 5:21:10 - MMT 1906 Jan 1 # Madras local time 950 5:30 - IST 1941 Oct 951 5:30 1:00 +0630 1942 May 15 952 5:30 - IST 1942 Sep 953 5:30 1:00 +0630 1945 Oct 15 954 5:30 - IST 955# Since 1970 the following are like Asia/Kolkata: 956# Andaman Is 957# Lakshadweep (Laccadive, Minicoy and Amindivi Is) 958# Nicobar Is 959 960# Indonesia 961# 962# From Paul Eggert (2014-09-06): 963# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia 964# civil time was 7:07:12.5; round to even for Jakarta. 965# 966# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger: 967# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime 968# says that Indonesia's time zones changed on 1988-01-01. Looking at some 969# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat 970# and Kalimantan Tengah) switching from UTC+8 to UTC+7. 971# 972# From Paul Eggert (2007-03-10): 973# Here is another correction to Shanks & Pottenger. 974# JohnTWB writes that Japanese forces did not surrender control in 975# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and 976# other formal surrender ceremonies were September 9, 11, and 13, plus 977# September 12 for the regional surrender to Mountbatten in Singapore. 978# These would be the earliest possible times for a change. 979# Régimes horaires pour le monde entier, by Henri Le Corre, (Éditions 980# Traditionnelles, 1987, Paris) says that Java and Madura switched 981# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura 982# (Hollandia). For now, assume all Indonesian locations other than Jayapura 983# switched on 1945-09-23. 984# 985# From Paul Eggert (2013-08-11): 986# Normally the tz database uses English-language abbreviations, but in 987# Indonesia it's typical to use Indonesian-language abbreviations even 988# when writing in English. For example, see the English-language 989# summary published by the Time and Frequency Laboratory of the 990# Research Center for Calibration, Instrumentation and Metrology, 991# Indonesia, <http://time.kim.lipi.go.id/time-eng.php> (2006-09-29). 992# The time zone abbreviations and UT offsets are: 993# 994# WIB - +07 - Waktu Indonesia Barat (Indonesia western time) 995# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time) 996# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time) 997# 998# Zone NAME GMTOFF RULES FORMAT [UNTIL] 999# Java, Sumatra 1000Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10 1001# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13, 1002# but this must be a typo. 1003 7:07:12 - BMT 1923 Dec 31 23:47:12 # Batavia 1004 7:20 - +0720 1932 Nov 1005 7:30 - +0730 1942 Mar 23 1006 9:00 - +09 1945 Sep 23 1007 7:30 - +0730 1948 May 1008 8:00 - +08 1950 May 1009 7:30 - +0730 1964 1010 7:00 - WIB 1011# west and central Borneo 1012Zone Asia/Pontianak 7:17:20 - LMT 1908 May 1013 7:17:20 - PMT 1932 Nov # Pontianak MT 1014 7:30 - +0730 1942 Jan 29 1015 9:00 - +09 1945 Sep 23 1016 7:30 - +0730 1948 May 1017 8:00 - +08 1950 May 1018 7:30 - +0730 1964 1019 8:00 - WITA 1988 Jan 1 1020 7:00 - WIB 1021# Sulawesi, Lesser Sundas, east and south Borneo 1022Zone Asia/Makassar 7:57:36 - LMT 1920 1023 7:57:36 - MMT 1932 Nov # Macassar MT 1024 8:00 - +08 1942 Feb 9 1025 9:00 - +09 1945 Sep 23 1026 8:00 - WITA 1027# Maluku Islands, West Papua, Papua 1028Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov 1029 9:00 - +09 1944 Sep 1 1030 9:30 - +0930 1964 1031 9:00 - WIT 1032 1033# Iran 1034 1035# From Roozbeh Pournader (2003-03-15): 1036# This is an English translation of what I just found (originally in Persian). 1037# The Gregorian dates in brackets are mine: 1038# 1039# Official Newspaper No. 13548-1370/6/25 [1991-09-16] 1040# No. 16760/T233 H 1370/6/10 [1991-09-01] 1041# 1042# The Rule About Change of the Official Time of the Country 1043# 1044# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14], 1045# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13] 1046# of the Country's Organization for Official and Employment Affairs, 1047# and referring to the law for equating the working hours of workers 1048# and officers in the whole country dated 1359/4/23 [1980-07-14], and 1049# for synchronizing the official times of the country, agreed that: 1050# 1051# The official time of the country will should move forward one hour 1052# at the 24[:00] hours of the first day of Farvardin and should return 1053# to its previous state at the 24[:00] hours of the 30th day of 1054# Shahrivar. 1055# 1056# First Deputy to the President - Hassan Habibi 1057# 1058# From personal experience, that agrees with what has been followed 1059# for at least the last 5 years. Before that, for a few years, the 1060# date used was the first Thursday night of Farvardin and the last 1061# Thursday night of Shahrivar, but I can't give exact dates.... 1062# 1063# From Roozbeh Pournader (2005-04-05): 1064# The text of the Iranian law, in effect since 1925, clearly mentions 1065# that the true solar year is the measure, and there is no arithmetic 1066# leap year calculation involved. There has never been any serious 1067# plan to change that law.... 1068# 1069# From Paul Eggert (2006-03-22): 1070# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter. 1071# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates, 1072# stopping after 2037 when 32-bit time_t's overflow. 1073# That cal-persia used Birashk's approximation, which disagrees with the solar 1074# calendar predictions for the year 2025, so I corrected those dates by hand. 1075# 1076# From Oscar van Vlijmen (2005-03-30), writing about future 1077# discrepancies between cal-persia and the Iranian calendar: 1078# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for 1079# the vernal equinox and that gets so close to 12:00 some local 1080# Iranian time that the definition of the correct location needs to be 1081# known exactly, amongst other factors. 2157 is even closer: 1082# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give 1083# no interpretation problem whatsoever. By the way, another instant 1084# in the near future where there will be a discrepancy between 1085# arithmetical and astronomical Iranian calendars will be in 2058: 1086# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of 1087# Reingold's/Dershowitz' calculator gives correctly the Gregorian date 1088# 2058-03-21 for 1 Farvardin 1437 (astronomical). 1089# 1090# From Steffen Thorsen (2006-03-22): 1091# Several of my users have reported that Iran will not observe DST anymore: 1092# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm 1093# 1094# From Reuters (2007-09-16), with a heads-up from Jesper Nørgaard Welen: 1095# ... the Guardian Council ... approved a law on Sunday to re-introduce 1096# daylight saving time ... 1097# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916 1098# 1099# From Roozbeh Pournader (2007-11-05): 1100# This is quoted from Official Gazette of the Islamic Republic of 1101# Iran, Volume 63, No. 18242, dated Tuesday 1386/6/24 1102# [2007-10-16]. I am doing the best translation I can:... 1103# The official time of the country will be moved forward for one hour 1104# on the 24 hours of the first day of the month of Farvardin and will 1105# be changed back to its previous state on the 24 hours of the 1106# thirtieth day of Shahrivar. 1107# 1108# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1109Rule Iran 1978 1980 - Mar 21 0:00 1:00 D 1110Rule Iran 1978 only - Oct 21 0:00 0 S 1111Rule Iran 1979 only - Sep 19 0:00 0 S 1112Rule Iran 1980 only - Sep 23 0:00 0 S 1113Rule Iran 1991 only - May 3 0:00 1:00 D 1114Rule Iran 1992 1995 - Mar 22 0:00 1:00 D 1115Rule Iran 1991 1995 - Sep 22 0:00 0 S 1116Rule Iran 1996 only - Mar 21 0:00 1:00 D 1117Rule Iran 1996 only - Sep 21 0:00 0 S 1118Rule Iran 1997 1999 - Mar 22 0:00 1:00 D 1119Rule Iran 1997 1999 - Sep 22 0:00 0 S 1120Rule Iran 2000 only - Mar 21 0:00 1:00 D 1121Rule Iran 2000 only - Sep 21 0:00 0 S 1122Rule Iran 2001 2003 - Mar 22 0:00 1:00 D 1123Rule Iran 2001 2003 - Sep 22 0:00 0 S 1124Rule Iran 2004 only - Mar 21 0:00 1:00 D 1125Rule Iran 2004 only - Sep 21 0:00 0 S 1126Rule Iran 2005 only - Mar 22 0:00 1:00 D 1127Rule Iran 2005 only - Sep 22 0:00 0 S 1128Rule Iran 2008 only - Mar 21 0:00 1:00 D 1129Rule Iran 2008 only - Sep 21 0:00 0 S 1130Rule Iran 2009 2011 - Mar 22 0:00 1:00 D 1131Rule Iran 2009 2011 - Sep 22 0:00 0 S 1132Rule Iran 2012 only - Mar 21 0:00 1:00 D 1133Rule Iran 2012 only - Sep 21 0:00 0 S 1134Rule Iran 2013 2015 - Mar 22 0:00 1:00 D 1135Rule Iran 2013 2015 - Sep 22 0:00 0 S 1136Rule Iran 2016 only - Mar 21 0:00 1:00 D 1137Rule Iran 2016 only - Sep 21 0:00 0 S 1138Rule Iran 2017 2019 - Mar 22 0:00 1:00 D 1139Rule Iran 2017 2019 - Sep 22 0:00 0 S 1140Rule Iran 2020 only - Mar 21 0:00 1:00 D 1141Rule Iran 2020 only - Sep 21 0:00 0 S 1142Rule Iran 2021 2023 - Mar 22 0:00 1:00 D 1143Rule Iran 2021 2023 - Sep 22 0:00 0 S 1144Rule Iran 2024 only - Mar 21 0:00 1:00 D 1145Rule Iran 2024 only - Sep 21 0:00 0 S 1146Rule Iran 2025 2027 - Mar 22 0:00 1:00 D 1147Rule Iran 2025 2027 - Sep 22 0:00 0 S 1148Rule Iran 2028 2029 - Mar 21 0:00 1:00 D 1149Rule Iran 2028 2029 - Sep 21 0:00 0 S 1150Rule Iran 2030 2031 - Mar 22 0:00 1:00 D 1151Rule Iran 2030 2031 - Sep 22 0:00 0 S 1152Rule Iran 2032 2033 - Mar 21 0:00 1:00 D 1153Rule Iran 2032 2033 - Sep 21 0:00 0 S 1154Rule Iran 2034 2035 - Mar 22 0:00 1:00 D 1155Rule Iran 2034 2035 - Sep 22 0:00 0 S 1156# 1157# The following rules are approximations starting in the year 2038. 1158# These are the best post-2037 approximations available, given the 1159# restrictions of a single rule using a Gregorian-based data format. 1160# At some point this table will need to be extended, though quite 1161# possibly Iran will change the rules first. 1162Rule Iran 2036 max - Mar 21 0:00 1:00 D 1163Rule Iran 2036 max - Sep 21 0:00 0 S 1164 1165# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1166Zone Asia/Tehran 3:25:44 - LMT 1916 1167 3:25:44 - TMT 1946 # Tehran Mean Time 1168 3:30 - +0330 1977 Nov 1169 4:00 Iran +04/+05 1979 1170 3:30 Iran +0330/+0430 1171 1172 1173# Iraq 1174# 1175# From Jonathan Lennox (2000-06-12): 1176# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in 1177# the U.S. edition) on the Iraqi Kurds contains a paragraph: 1178# "The three northern provinces ... switched their clocks this spring and 1179# are an hour ahead of Baghdad." 1180# 1181# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows: 1182# In the past, some Kurdish nationalists, as a protest to the Iraqi 1183# Government, did not adhere to daylight saving time. They referred 1184# to daylight saving as Saddam time. But, as of today, the time zone 1185# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq. 1186# 1187# So we'll ignore the Economist's claim. 1188 1189# From Steffen Thorsen (2008-03-10): 1190# The cabinet in Iraq abolished DST last week, according to the following 1191# news sources (in Arabic): 1192# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html 1193# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10 1194# 1195# We have published a short article in English about the change: 1196# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html 1197 1198# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1199Rule Iraq 1982 only - May 1 0:00 1:00 D 1200Rule Iraq 1982 1984 - Oct 1 0:00 0 S 1201Rule Iraq 1983 only - Mar 31 0:00 1:00 D 1202Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D 1203Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S 1204Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D 1205# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo. 1206# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this. 1207# 1208Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D 1209Rule Iraq 1991 2007 - Oct 1 3:00s 0 S 1210# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1211Zone Asia/Baghdad 2:57:40 - LMT 1890 1212 2:57:36 - BMT 1918 # Baghdad Mean Time? 1213 3:00 - +03 1982 May 1214 3:00 Iraq +03/+04 1215 1216 1217############################################################################### 1218 1219# Israel 1220 1221# From Ephraim Silverberg (2001-01-11): 1222# 1223# I coined "IST/IDT" circa 1988. Until then there were three 1224# different abbreviations in use: 1225# 1226# JST Jerusalem Standard Time [Danny Braniss, Hebrew University] 1227# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion] 1228# EEST Eastern Europe Standard Time [used by almost everyone else] 1229# 1230# Since timezones should be called by country and not capital cities, 1231# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe, 1232# EEST was equally unacceptable. Since "zonal" was not compatible with 1233# any other timezone abbreviation, I felt that 'IST' was the way to go 1234# and, indeed, it has received almost universal acceptance in timezone 1235# settings in Israeli computers. 1236# 1237# In any case, I am happy to share timezone abbreviations with India, 1238# high on my favorite-country list (and not only because my wife's 1239# family is from India). 1240 1241# From Shanks & Pottenger: 1242# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1243Rule Zion 1940 only - Jun 1 0:00 1:00 D 1244Rule Zion 1942 1944 - Nov 1 0:00 0 S 1245Rule Zion 1943 only - Apr 1 2:00 1:00 D 1246Rule Zion 1944 only - Apr 1 0:00 1:00 D 1247Rule Zion 1945 only - Apr 16 0:00 1:00 D 1248Rule Zion 1945 only - Nov 1 2:00 0 S 1249Rule Zion 1946 only - Apr 16 2:00 1:00 D 1250Rule Zion 1946 only - Nov 1 0:00 0 S 1251Rule Zion 1948 only - May 23 0:00 2:00 DD 1252Rule Zion 1948 only - Sep 1 0:00 1:00 D 1253Rule Zion 1948 1949 - Nov 1 2:00 0 S 1254Rule Zion 1949 only - May 1 0:00 1:00 D 1255Rule Zion 1950 only - Apr 16 0:00 1:00 D 1256Rule Zion 1950 only - Sep 15 3:00 0 S 1257Rule Zion 1951 only - Apr 1 0:00 1:00 D 1258Rule Zion 1951 only - Nov 11 3:00 0 S 1259Rule Zion 1952 only - Apr 20 2:00 1:00 D 1260Rule Zion 1952 only - Oct 19 3:00 0 S 1261Rule Zion 1953 only - Apr 12 2:00 1:00 D 1262Rule Zion 1953 only - Sep 13 3:00 0 S 1263Rule Zion 1954 only - Jun 13 0:00 1:00 D 1264Rule Zion 1954 only - Sep 12 0:00 0 S 1265Rule Zion 1955 only - Jun 11 2:00 1:00 D 1266Rule Zion 1955 only - Sep 11 0:00 0 S 1267Rule Zion 1956 only - Jun 3 0:00 1:00 D 1268Rule Zion 1956 only - Sep 30 3:00 0 S 1269Rule Zion 1957 only - Apr 29 2:00 1:00 D 1270Rule Zion 1957 only - Sep 22 0:00 0 S 1271Rule Zion 1974 only - Jul 7 0:00 1:00 D 1272Rule Zion 1974 only - Oct 13 0:00 0 S 1273Rule Zion 1975 only - Apr 20 0:00 1:00 D 1274Rule Zion 1975 only - Aug 31 0:00 0 S 1275Rule Zion 1985 only - Apr 14 0:00 1:00 D 1276Rule Zion 1985 only - Sep 15 0:00 0 S 1277Rule Zion 1986 only - May 18 0:00 1:00 D 1278Rule Zion 1986 only - Sep 7 0:00 0 S 1279Rule Zion 1987 only - Apr 15 0:00 1:00 D 1280Rule Zion 1987 only - Sep 13 0:00 0 S 1281 1282# From Avigdor Finkelstein (2014-03-05): 1283# I check the Parliament (Knesset) records and there it's stated that the 1284# [1988] transition should take place on Saturday night, when the Sabbath 1285# ends and changes to Sunday. 1286Rule Zion 1988 only - Apr 10 0:00 1:00 D 1287Rule Zion 1988 only - Sep 4 0:00 0 S 1288 1289# From Ephraim Silverberg 1290# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22, 1291# and 2005-02-17): 1292 1293# According to the Office of the Secretary General of the Ministry of 1294# Interior, there is NO set rule for Daylight-Savings/Standard time changes. 1295# One thing is entrenched in law, however: that there must be at least 150 1296# days of daylight savings time annually. From 1993-1998, the change to 1297# daylight savings time was on a Friday morning from midnight IST to 1298# 1 a.m IDT; up until 1998, the change back to standard time was on a 1299# Saturday night from midnight daylight savings time to 11 p.m. standard 1300# time. 1996 is an exception to this rule where the change back to standard 1301# time took place on Sunday night instead of Saturday night to avoid 1302# conflicts with the Jewish New Year. In 1999, the change to 1303# daylight savings time was still on a Friday morning but from 1304# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time 1305# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for 1306# 1999 only. In the year 2000, the change to daylight savings time was 1307# similar to 1999, but although the change back will be on a Friday, it 1308# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all 1309# changes to/from will take place at 1 a.m. old time, but now there is no 1310# rule as to what day of the week it will take place in as the start date 1311# (except in 2003) is the night after the Passover Seder (i.e. the eve 1312# of the 16th of Nisan in the lunar Hebrew calendar) and the end date 1313# (except in 2002) is three nights before Yom Kippur [Day of Atonement] 1314# (the eve of the 7th of Tishrei in the lunar Hebrew calendar). 1315 1316# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1317Rule Zion 1989 only - Apr 30 0:00 1:00 D 1318Rule Zion 1989 only - Sep 3 0:00 0 S 1319Rule Zion 1990 only - Mar 25 0:00 1:00 D 1320Rule Zion 1990 only - Aug 26 0:00 0 S 1321Rule Zion 1991 only - Mar 24 0:00 1:00 D 1322Rule Zion 1991 only - Sep 1 0:00 0 S 1323Rule Zion 1992 only - Mar 29 0:00 1:00 D 1324Rule Zion 1992 only - Sep 6 0:00 0 S 1325Rule Zion 1993 only - Apr 2 0:00 1:00 D 1326Rule Zion 1993 only - Sep 5 0:00 0 S 1327 1328# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the 1329# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by 1330# calling the office directly at 972-2-6701447 or 972-2-6701448. 1331 1332# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1333Rule Zion 1994 only - Apr 1 0:00 1:00 D 1334Rule Zion 1994 only - Aug 28 0:00 0 S 1335Rule Zion 1995 only - Mar 31 0:00 1:00 D 1336Rule Zion 1995 only - Sep 3 0:00 0 S 1337 1338# The dates for 1996 were determined by the Minister of Interior of the 1339# time, Haim Ramon. The official announcement regarding 1996-1998 1340# (with the dates for 1997-1998 no longer being relevant) can be viewed at: 1341# 1342# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz 1343# 1344# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa. 1345# 1346# The official announcements for the years 1997-1999 can be viewed at: 1347# 1348# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz 1349# 1350# where YYYY is the relevant year. 1351 1352# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1353Rule Zion 1996 only - Mar 15 0:00 1:00 D 1354Rule Zion 1996 only - Sep 16 0:00 0 S 1355Rule Zion 1997 only - Mar 21 0:00 1:00 D 1356Rule Zion 1997 only - Sep 14 0:00 0 S 1357Rule Zion 1998 only - Mar 20 0:00 1:00 D 1358Rule Zion 1998 only - Sep 6 0:00 0 S 1359Rule Zion 1999 only - Apr 2 2:00 1:00 D 1360Rule Zion 1999 only - Sep 3 2:00 0 S 1361 1362# The Knesset Interior Committee has changed the dates for 2000 for 1363# the third time in just over a year and have set new dates for the 1364# years 2001-2004 as well. 1365# 1366# The official announcement for the start date of 2000 can be viewed at: 1367# 1368# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz 1369# 1370# The official announcement for the end date of 2000 and the dates 1371# for the years 2001-2004 can be viewed at: 1372# 1373# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz 1374 1375# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1376Rule Zion 2000 only - Apr 14 2:00 1:00 D 1377Rule Zion 2000 only - Oct 6 1:00 0 S 1378Rule Zion 2001 only - Apr 9 1:00 1:00 D 1379Rule Zion 2001 only - Sep 24 1:00 0 S 1380Rule Zion 2002 only - Mar 29 1:00 1:00 D 1381Rule Zion 2002 only - Oct 7 1:00 0 S 1382Rule Zion 2003 only - Mar 28 1:00 1:00 D 1383Rule Zion 2003 only - Oct 3 1:00 0 S 1384Rule Zion 2004 only - Apr 7 1:00 1:00 D 1385Rule Zion 2004 only - Sep 22 1:00 0 S 1386 1387# The proposed law agreed upon by the Knesset Interior Committee on 1388# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the 1389# last Friday before April 2nd (i.e. the last Friday in March or April 1390# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday 1391# night _before_ the fast of Yom Kippur. 1392# 1393# Those who can read Hebrew can view the announcement at: 1394# 1395# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps 1396 1397# From Paul Eggert (2012-10-26): 1398# I used Ephraim Silverberg's dst-israel.el program 1399# <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20) 1400# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4, 1401# to generate the transitions from 2005 through 2012. 1402# (I replaced "lastFri" with "Fri>=26" by hand.) 1403# The spring transitions all correspond to the following Rule: 1404# 1405# Rule Zion 2005 2012 - Mar Fri>=26 2:00 1:00 D 1406# 1407# but older zic implementations (e.g., Solaris 8) do not support 1408# "Fri>=26" to mean April 1 in years like 2005, so for now we list the 1409# springtime transitions explicitly. 1410 1411# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1412Rule Zion 2005 only - Apr 1 2:00 1:00 D 1413Rule Zion 2005 only - Oct 9 2:00 0 S 1414Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D 1415Rule Zion 2006 only - Oct 1 2:00 0 S 1416Rule Zion 2007 only - Sep 16 2:00 0 S 1417Rule Zion 2008 only - Oct 5 2:00 0 S 1418Rule Zion 2009 only - Sep 27 2:00 0 S 1419Rule Zion 2010 only - Sep 12 2:00 0 S 1420Rule Zion 2011 only - Apr 1 2:00 1:00 D 1421Rule Zion 2011 only - Oct 2 2:00 0 S 1422Rule Zion 2012 only - Mar Fri>=26 2:00 1:00 D 1423Rule Zion 2012 only - Sep 23 2:00 0 S 1424 1425# From Ephraim Silverberg (2013-06-27): 1426# On June 23, 2013, the Israeli government approved changes to the 1427# Time Decree Law. The next day, the changes passed the First Reading 1428# in the Knesset. The law is expected to pass the Second and Third 1429# (final) Readings by the beginning of September 2013. 1430# 1431# As of 2013, DST starts at 02:00 on the Friday before the last Sunday 1432# in March. DST ends at 02:00 on the last Sunday of October. 1433 1434# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1435Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D 1436Rule Zion 2013 max - Oct lastSun 2:00 0 S 1437 1438# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1439Zone Asia/Jerusalem 2:20:54 - LMT 1880 1440 2:20:40 - JMT 1918 # Jerusalem Mean Time? 1441 2:00 Zion I%sT 1442 1443 1444 1445############################################################################### 1446 1447# Japan 1448 1449# '9:00' and 'JST' is from Guy Harris. 1450 1451# From Paul Eggert (1995-03-06): 1452# Today's _Asahi Evening News_ (page 4) reports that Japan had 1453# daylight saving between 1948 and 1951, but "the system was discontinued 1454# because the public believed it would lead to longer working hours." 1455 1456# From Mayumi Negishi in the 2005-08-10 Japan Times: 1457# http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm 1458# Occupation authorities imposed daylight-saving time on Japan on 1459# [1948-05-01].... But lack of prior debate and the execution of 1460# daylight-saving time just three days after the bill was passed generated 1461# deep hatred of the concept.... The Diet unceremoniously passed a bill to 1462# dump the unpopular system in October 1951, less than a month after the San 1463# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53% 1464# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who 1465# wanted to keep it.) 1466 1467# From Takayuki Nikai (2018-01-19): 1468# The source of information is Japanese law. 1469# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00219480428029.htm 1470# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm 1471# ... In summary, it is written as follows. From 24:00 on the first Saturday 1472# in May, until 0:00 on the day after the second Saturday in September. 1473# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1474Rule Japan 1948 only - May Sat>=1 24:00 1:00 D 1475Rule Japan 1948 1951 - Sep Sun>=9 0:00 0 S 1476Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D 1477Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D 1478 1479# From Hideyuki Suzuki (1998-11-09): 1480# 'Tokyo' usually stands for the former location of Tokyo Astronomical 1481# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s), 1482# 35 degrees 39' 16.0" N. 1483# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996' 1484# edited by National Astronomical Observatory of Japan.... 1485# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST). 1486# The law is enacted on 1886-07-07. 1487 1488# From Hideyuki Suzuki (1998-11-16): 1489# The ordinance No. 51 (1886) established "standard time" in Japan, 1490# which stands for the time on 135 degrees E. 1491# In the ordinance No. 167 (1895), "standard time" was renamed to "central 1492# standard time". And the same ordinance also established "western standard 1493# time", which stands for the time on 120 degrees E.... But "western standard 1494# time" was abolished in the ordinance No. 529 (1937). In the ordinance No. 1495# 167, there is no mention regarding for what place western standard time is 1496# standard.... 1497# 1498# I wrote "ordinance" above, but I don't know how to translate. 1499# In Japanese it's "chokurei", which means ordinance from emperor. 1500 1501# From Yu-Cheng Chuang (2013-07-12): 1502# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause 1503# about standard time" ... The adoption began from Jan 1, 1896. 1504# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時) 1505# 1506# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which 1507# means the whole Japan territory, including later occupations, adopt Japan 1508# Central Time (UT+9). The adoption began on Oct 1, 1937. 1509# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件 1510 1511# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1512Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u 1513 9:00 Japan J%sT 1514# Since 1938, all Japanese possessions have been like Asia/Tokyo. 1515 1516# Jordan 1517# 1518# From <http://star.arabia.com/990701/JO9.html> 1519# Jordan Week (1999-07-01) via Steffen Thorsen (1999-09-09): 1520# Clocks in Jordan were forwarded one hour on Wednesday at midnight, 1521# in accordance with the government's decision to implement summer time 1522# all year round. 1523# 1524# From <http://star.arabia.com/990930/JO9.html> 1525# Jordan Week (1999-09-30) via Steffen Thorsen (1999-11-09): 1526# Winter time starts today Thursday, 30 September. Clocks will be turned back 1527# by one hour. This is the latest government decision and it's final! 1528# The decision was taken because of the increase in working hours in 1529# government's departments from six to seven hours. 1530# 1531# From Paul Eggert (2005-11-22): 1532# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com. 1533# 1534# From Steffen Thorsen (2005-11-23): 1535# For Jordan I have received multiple independent user reports every year 1536# about DST end dates, as the end-rule is different every year. 1537# 1538# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi: 1539# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm 1540# "Jordan will switch to winter time on Friday, October 27". 1541# 1542 1543# From Steffen Thorsen (2009-04-02): 1544# This single one might be good enough, (2009-03-24, Arabic): 1545# http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279 1546# 1547# Google's translation: 1548# 1549# > The Council of Ministers decided in 2002 to adopt the principle of timely 1550# > submission of the summer at 60 minutes as of midnight on the last Thursday 1551# > of the month of March of each year. 1552# 1553# So - this means the midnight between Thursday and Friday since 2002. 1554 1555# From Arthur David Olson (2009-04-06): 1556# We still have Jordan switching to DST on Thursdays in 2000 and 2001. 1557 1558# From Steffen Thorsen (2012-10-25): 1559# Yesterday the government in Jordan announced that they will not 1560# switch back to standard time this winter, so the will stay on DST 1561# until about the same time next year (at least). 1562# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950 1563 1564# From Steffen Thorsen (2013-12-11): 1565# Jordan Times and other sources say that Jordan is going back to 1566# UTC+2 on 2013-12-19 at midnight: 1567# http://jordantimes.com/govt-decides-to-switch-back-to-wintertime 1568# Official, in Arabic: 1569# http://www.petra.gov.jo/public_news/Nws_NewsDetails.aspx?Menu_ID=&Site_Id=2&lang=1&NewsID=133230&CatID=14 1570# ... Our background/permalink about it 1571# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html 1572# ... 1573# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?lang=2&site_id=1&NewsID=133313&Type=P 1574# ... says midnight for the coming one and 1:00 for the ones in the future 1575# (and they will use DST again next year, using the normal schedule). 1576 1577# From Paul Eggert (2013-12-11): 1578# As Steffen suggested, consider the past 21-month experiment to be DST. 1579 1580# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1581Rule Jordan 1973 only - Jun 6 0:00 1:00 S 1582Rule Jordan 1973 1975 - Oct 1 0:00 0 - 1583Rule Jordan 1974 1977 - May 1 0:00 1:00 S 1584Rule Jordan 1976 only - Nov 1 0:00 0 - 1585Rule Jordan 1977 only - Oct 1 0:00 0 - 1586Rule Jordan 1978 only - Apr 30 0:00 1:00 S 1587Rule Jordan 1978 only - Sep 30 0:00 0 - 1588Rule Jordan 1985 only - Apr 1 0:00 1:00 S 1589Rule Jordan 1985 only - Oct 1 0:00 0 - 1590Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S 1591Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 - 1592Rule Jordan 1989 only - May 8 0:00 1:00 S 1593Rule Jordan 1990 only - Apr 27 0:00 1:00 S 1594Rule Jordan 1991 only - Apr 17 0:00 1:00 S 1595Rule Jordan 1991 only - Sep 27 0:00 0 - 1596Rule Jordan 1992 only - Apr 10 0:00 1:00 S 1597Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 - 1598Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S 1599Rule Jordan 1994 only - Sep Fri>=15 0:00 0 - 1600Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 - 1601Rule Jordan 1999 only - Jul 1 0:00s 1:00 S 1602Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 - 1603Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S 1604Rule Jordan 2002 2012 - Mar lastThu 24:00 1:00 S 1605Rule Jordan 2003 only - Oct 24 0:00s 0 - 1606Rule Jordan 2004 only - Oct 15 0:00s 0 - 1607Rule Jordan 2005 only - Sep lastFri 0:00s 0 - 1608Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 - 1609Rule Jordan 2013 only - Dec 20 0:00 0 - 1610Rule Jordan 2014 max - Mar lastThu 24:00 1:00 S 1611Rule Jordan 2014 max - Oct lastFri 0:00s 0 - 1612# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1613Zone Asia/Amman 2:23:44 - LMT 1931 1614 2:00 Jordan EE%sT 1615 1616 1617# Kazakhstan 1618 1619# From Kazakhstan Embassy's News Bulletin No. 11 1620# <http://www.kazsociety.org.uk/news/2005/03/30.htm> (2005-03-21): 1621# The Government of Kazakhstan passed a resolution March 15 abolishing 1622# daylight saving time citing lack of economic benefits and health 1623# complications coupled with a decrease in productivity. 1624# 1625# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28): 1626# ... what happened was that the former Kazakhstan Eastern time zone 1627# was "blended" with the Central zone. Therefore, Kazakhstan now has 1628# two time zones, and difference between them is one hour. The zone 1629# closer to UTC is the former Western zone (probably still called the 1630# same), encompassing four provinces in the west: Aqtöbe, Atyraū, 1631# Mangghystaū, and West Kazakhstan. The other zone encompasses 1632# everything else.... I guess that would make Kazakhstan time zones 1633# de jure UTC+5 and UTC+6 respectively. 1634 1635# From Stepan Golosunov (2016-03-27): 1636# Review of the linked documents from http://adilet.zan.kz/ 1637# produced the following data for post-1991 Kazakhstan: 1638# 1639# 0. Act of the Cabinet of Ministers of the USSR 1640# from 1991-02-04 No. 20 1641# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545 1642# removed the extra hour ("decree time") on the territory of the USSR 1643# starting with the last Sunday of March 1991. 1644# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR, 1645# Turkmen SSR and Uzbek SSR to not have "summer" time. 1646# 1647# The 1992-01-13 act also refers to the act of the Cabinet of Ministers 1648# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet 1649# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its 1650# text. 1651# 1652# According to Izvestia newspaper No. 68 (23334) from 1991-03-20 1653# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via 1654# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during 1655# transition to "summer" time: 1656# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova, 1657# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug 1658# were to move clocks 1 hour forward. 1659# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik 1660# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts 1661# of the Uzbek SSR were to move clocks 1 hour backwards. 1662# Other territories were to not move clocks. 1663# When the "summer" time would end on 1991-09-29, clocks were to be 1664# moved 1 hour backwards on the territory of the USSR excluding 1665# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan. 1666# 1667# Apparently there were last minute changes. Apparently Kazakh act No. 170 1668# was one of such changes. 1669# 1670# https://ru.wikipedia.org/wiki/Декретное время 1671# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that 1672# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast) 1673# were to not move clocks and Uralsk oblast was to move clocks 1674# forward; on 1991-09-29 Kazakhstan was to move clocks backwards. 1675# (Probably there were changes even after that publication. There is an 1676# article claiming that Kaliningrad oblast decided on 1991-03-29 to not 1677# move clocks.) 1678# 1679# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while 1680# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06 1681# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth 1682# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ... 1683# 1684# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan 1685# from 1992-01-13 No. 28 1686# http://adilet.zan.kz/rus/docs/P920000028_ 1687# (text includes modification from the 1996 act) 1688# introduced new rules for calculation of time, mirroring Russian 1689# 1992-01-08 act. It specified that time would be calculated 1690# according to time belts plus extra hour ("decree time"), moved clocks 1691# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at 1692# 2:00, specified DST rules. It acknowledged that Kazakhstan was 1693# located in the fourth and the fifth time belts and specified the 1694# border between them to be located east of Qostanay and Aktyubinsk 1695# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth 1696# time belt). 1697# 1698# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for 1699# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyraū and Qostanay oblasts; from 1700# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk).... 1701# 1702# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan 1703# from 1992-03-27 No. 284 1704# http://adilet.zan.kz/rus/docs/P920000284_ 1705# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts 1706# since the last Sunday of March 1992, while keeping them in the fourth 1707# and the fifth time belts respectively. 1708# 1709# 3. Order of the Prime Minister of the Republic of Kazakhstan 1710# from 1994-09-23 No. 384 1711# http://adilet.zan.kz/rus/docs/R940000384_ 1712# cancels the extra hour ("decree time") on the territory of Mangghystaū 1713# oblast since the last Sunday of September 1994 (saying that time on 1714# the territory would correspond to the third time belt as a 1715# result).... 1716# 1717# 4. Act of the Government of the Republic of Kazakhstan 1718# from 1996-05-08 No. 575 1719# http://adilet.zan.kz/rus/docs/P960000575_ 1720# amends the 1992-01-13 act to end summer time in October instead 1721# of September, mirroring identical Russian change from 1996-04-23 act. 1722# 1723# 5. Act of the Government of the Republic of Kazakhstan 1724# from 1999-03-26 No. 305 1725# http://adilet.zan.kz/rus/docs/P990000305_ 1726# cancels the extra hour ("decree time") for Atyraū oblast since the 1727# last Sunday of March 1999 while retaining the oblast in the fourth 1728# time belt. 1729# 1730# This means change from +05/+06 to +04/+05.... 1731# 1732# 6. Act of the Government of the Republic of Kazakhstan 1733# from 2000-11-23 No. 1749 1734# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000 1735# replaces the previous five documents. 1736# 1737# The only changes I noticed are in definition of the border between the 1738# fourth and the fifth time belts. They account for changes in spelling 1739# and administrative division (splitting of Turgai oblast in 1997 1740# probably changed time in territories incorporated into Qostanay oblast 1741# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast 1742# from being in the fifth time belt and not using decree time into the 1743# fourth time belt (no change in practice). 1744# 1745# 7. Act of the Government of the Republic of Kazakhstan 1746# from 2003-12-29 No. 1342 1747# http://adilet.zan.kz/rus/docs/P030001342_ 1748# modified the 2000-11-23 act. No relevant changes, apparently. 1749# 1750# 8. Act of the Government of the Republic of Kazakhstan 1751# from 2004-07-20 No. 775 1752# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004 1753# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into 1754# the fifth time belt and add Aktobe oblast to the list of regions not 1755# using extra hour ("decree time"), leaving Kazakhstan with only 2 time 1756# zones (+04/+05 and +06/+07). The changes were to be implemented 1757# during DST transitions in 2004 and 2005 but the acts got radically 1758# amended before implementation happened. 1759# 1760# 9. Act of the Government of the Republic of Kazakhstan 1761# from 2004-09-15 No. 1059 1762# http://adilet.zan.kz/rus/docs/P040001059_ 1763# modified the 2000-11-23 act to remove exceptions from the "decree time" 1764# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the 1765# 2004-07-20 act to implement changes for Atyraū, West Kazakhstan, 1766# Qostanay, Qyzylorda and Mangghystaū oblasts by not moving clocks 1767# during the 2004 transition to "winter" time. 1768# 1769# This means transition from +04/+05 to +05/+06 for Atyraū oblast (no 1770# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to 1771# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently) 1772# and Asia/Qyzylorda on 2004-10-31 at 3:00.... 1773# 1774# 10. Act of the Government of the Republic of Kazakhstan 1775# from 2005-03-15 No. 231 1776# http://adilet.zan.kz/rus/docs/P050000231_ 1777# removes DST provisions from the 2000-11-23 act, removes most of the 1778# (already implemented) provisions from the 2004-07-20 and 2004-09-15 1779# acts, comes into effect 10 days after official publication. 1780# The only practical effect seems to be the abolition of the summer 1781# time. 1782# 1783# Unamended version of the act of the Government of the Russian Federation 1784# No. 23 from 1992-01-08 [See 'europe' file for details]. 1785# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27 1786# act was to be enacted on the last Sunday of March 1992. 1787 1788# From Stepan Golosunov (2016-11-08): 1789# Turgai reorganization should affect only southern part of Qostanay 1790# oblast. Which should probably be separated into Asia/Arkalyk zone. 1791# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations 1792# according to wikipedia.) 1793# 1794# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/ 1795# suggests that clocks were to be moved 40 minutes backwards on 1796# 1920-01-01 to the fourth time belt. But I do not understand 1797# how that could happen.... 1798# 1799# [For Atyrau and Oral] 1919 decree 1800# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html 1801# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in 1802# the third time belt (before 1930 this means +03). 1803 1804# From Paul Eggert (2016-12-06): 1805# The tables below reflect Golosunov's remarks, with exceptions as noted. 1806 1807# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1808# 1809# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan 1810# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA, 1811# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ. 1812Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata 1813 5:00 - +05 1930 Jun 21 1814 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s 1815 5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s 1816 6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s 1817 6:00 - +06 1818# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY) 1819# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS); 1820# see comments below. 1821Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2 1822 4:00 - +04 1930 Jun 21 1823 5:00 - +05 1981 Apr 1 1824 5:00 1:00 +06 1981 Oct 1 1825 6:00 - +06 1982 Apr 1 1826 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1827 4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s 1828 5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s 1829 6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s 1830 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s 1831 6:00 - +06 1832# The following zone is like Asia/Qyzylorda except for being one 1833# hour earlier from 1991-09-29 to 1992-03-29. The 1991/2 rules for 1834# Qostanay are unclear partly because of the 1997 Turgai 1835# reorganization, so this zone is commented out for now. 1836#Zone Asia/Qostanay 4:14:20 - LMT 1924 May 2 1837# 4:00 - +04 1930 Jun 21 1838# 5:00 - +05 1981 Apr 1 1839# 5:00 1:00 +06 1981 Oct 1 1840# 6:00 - +06 1982 Apr 1 1841# 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1842# 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1843# 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s 1844# 6:00 - +06 1845# 1846# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT) 1847Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2 1848 4:00 - +04 1930 Jun 21 1849 5:00 - +05 1981 Apr 1 1850 5:00 1:00 +06 1981 Oct 1 1851 6:00 - +06 1982 Apr 1 1852 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1853 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1854 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s 1855 5:00 - +05 1856# Mangghystaū (KZ-MAN) 1857# Aqtau was not founded until 1963, but it represents an inhabited region, 1858# so include time stamps before 1963. 1859Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 1860 4:00 - +04 1930 Jun 21 1861 5:00 - +05 1981 Oct 1 1862 6:00 - +06 1982 Apr 1 1863 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1864 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1865 5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s 1866 4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s 1867 5:00 - +05 1868# Atyraū (KZ-ATY) is like Mangghystaū except it switched from 1869# +04/+05 to +05/+06 in spring 1999, not fall 1994. 1870Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2 1871 3:00 - +03 1930 Jun 21 1872 5:00 - +05 1981 Oct 1 1873 6:00 - +06 1982 Apr 1 1874 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1875 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1876 5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s 1877 4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s 1878 5:00 - +05 1879# West Kazakhstan (KZ-ZAP) 1880# From Paul Eggert (2016-03-18): 1881# The 1989 transition is from USSR act No. 227 (1989-03-14). 1882Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk 1883 3:00 - +03 1930 Jun 21 1884 5:00 - +05 1981 Apr 1 1885 5:00 1:00 +06 1981 Oct 1 1886 6:00 - +06 1982 Apr 1 1887 5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s 1888 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1889 5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s 1890 4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s 1891 5:00 - +05 1892 1893# Kyrgyzstan (Kirgizstan) 1894# Transitions through 1991 are from Shanks & Pottenger. 1895 1896# From Paul Eggert (2005-08-15): 1897# According to an article dated today in the Kyrgyzstan Development Gateway 1898# http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml 1899# Kyrgyzstan is canceling the daylight saving time system. I take the article 1900# to mean that they will leave their clocks at 6 hours ahead of UTC. 1901# From Malik Abdugaliev (2005-09-21): 1902# Our government cancels daylight saving time 6th of August 2005. 1903# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving. 1904 1905# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1906Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S 1907Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 - 1908Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S 1909Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 - 1910# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1911Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 1912 5:00 - +05 1930 Jun 21 1913 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s 1914 5:00 RussiaAsia +05/+06 1991 Aug 31 2:00 1915 5:00 Kyrgyz +05/+06 2005 Aug 12 1916 6:00 - +06 1917 1918############################################################################### 1919 1920# Korea (North and South) 1921 1922# From Annie I. Bang (2006-07-10): 1923# http://www.koreaherald.com/view.php?ud=200607100012 1924# Korea ran a daylight saving program from 1949-61 but stopped it 1925# during the 1950-53 Korean War. The system was temporarily enforced 1926# between 1987 and 1988 ... 1927 1928# From Sanghyuk Jung (2014-10-29): 1929# https://mm.icann.org/pipermail/tz/2014-October/021830.html 1930# According to the Korean Wikipedia 1931# https://ko.wikipedia.org/wiki/한국_표준시 1932# [oldid=12896437 2014-09-04 08:03 UTC] 1933# DST in Republic of Korea was as follows.... And I checked old 1934# newspapers in Korean, all articles correspond with data in Wikipedia. 1935# For example, the article in 1948 (Korean Language) proved that DST 1936# started at June 1 in that year. For another example, the article in 1937# 1988 said that DST started at 2:00 AM in that year. 1938 1939# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1940Rule ROK 1948 only - Jun 1 0:00 1:00 D 1941Rule ROK 1948 only - Sep 13 0:00 0 S 1942Rule ROK 1949 only - Apr 3 0:00 1:00 D 1943Rule ROK 1949 1951 - Sep Sun>=8 0:00 0 S 1944Rule ROK 1950 only - Apr 1 0:00 1:00 D 1945Rule ROK 1951 only - May 6 0:00 1:00 D 1946Rule ROK 1955 only - May 5 0:00 1:00 D 1947Rule ROK 1955 only - Sep 9 0:00 0 S 1948Rule ROK 1956 only - May 20 0:00 1:00 D 1949Rule ROK 1956 only - Sep 30 0:00 0 S 1950Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D 1951Rule ROK 1957 1960 - Sep Sun>=18 0:00 0 S 1952Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D 1953Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S 1954 1955# From Paul Eggert (2016-08-23): 1956# The Korean Wikipedia entry gives the following sources for UT offsets: 1957# 1958# 1908: Official Journal Article No. 3994 (decree No. 5) 1959# 1912: Governor-General of Korea Official Gazette Issue No. 367 1960# (Announcement No. 338) 1961# 1954: Presidential Decree No. 876 (1954-03-17) 1962# 1961: Law No. 676 (1961-08-07) 1963# 1964# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30 1965# edition of the Korean Wikipedia entry.) 1966# 1967# I guessed that time zone abbreviations through 1945 followed the same 1968# rules as discussed under Taiwan, with nominal switches from JST to KST 1969# when the respective cities were taken over by the Allies after WWII. 1970# 1971# For Pyongyang, guess no changes from World War II until 2015, as we 1972# have no information otherwise. 1973 1974# From Steffen Thorsen (2015-08-07): 1975# According to many news sources, North Korea is going to change to 1976# the 8:30 time zone on August 15, one example: 1977# http://www.bbc.com/news/world-asia-33815049 1978# 1979# From Paul Eggert (2015-08-15): 1980# Bells rang out midnight (00:00) Friday as part of the celebrations. See: 1981# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time' 1982# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html 1983# There is no common English-language abbreviation for this time zone. 1984# Use KST, as that's what we already use for 1954-1961 in ROK. 1985 1986# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1987Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1 1988 8:30 - KST 1912 Jan 1 1989 9:00 - JST 1945 Sep 8 1990 9:00 - KST 1954 Mar 21 1991 8:30 ROK K%sT 1961 Aug 10 1992 9:00 ROK K%sT 1993Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1 1994 8:30 - KST 1912 Jan 1 1995 9:00 - JST 1945 Aug 24 1996 9:00 - KST 2015 Aug 15 00:00 1997 8:30 - KST 1998 1999############################################################################### 2000 2001# Kuwait 2002# See Asia/Riyadh. 2003 2004# Laos 2005# See Asia/Bangkok. 2006 2007 2008# Lebanon 2009# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2010Rule Lebanon 1920 only - Mar 28 0:00 1:00 S 2011Rule Lebanon 1920 only - Oct 25 0:00 0 - 2012Rule Lebanon 1921 only - Apr 3 0:00 1:00 S 2013Rule Lebanon 1921 only - Oct 3 0:00 0 - 2014Rule Lebanon 1922 only - Mar 26 0:00 1:00 S 2015Rule Lebanon 1922 only - Oct 8 0:00 0 - 2016Rule Lebanon 1923 only - Apr 22 0:00 1:00 S 2017Rule Lebanon 1923 only - Sep 16 0:00 0 - 2018Rule Lebanon 1957 1961 - May 1 0:00 1:00 S 2019Rule Lebanon 1957 1961 - Oct 1 0:00 0 - 2020Rule Lebanon 1972 only - Jun 22 0:00 1:00 S 2021Rule Lebanon 1972 1977 - Oct 1 0:00 0 - 2022Rule Lebanon 1973 1977 - May 1 0:00 1:00 S 2023Rule Lebanon 1978 only - Apr 30 0:00 1:00 S 2024Rule Lebanon 1978 only - Sep 30 0:00 0 - 2025Rule Lebanon 1984 1987 - May 1 0:00 1:00 S 2026Rule Lebanon 1984 1991 - Oct 16 0:00 0 - 2027Rule Lebanon 1988 only - Jun 1 0:00 1:00 S 2028Rule Lebanon 1989 only - May 10 0:00 1:00 S 2029Rule Lebanon 1990 1992 - May 1 0:00 1:00 S 2030Rule Lebanon 1992 only - Oct 4 0:00 0 - 2031Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S 2032Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 - 2033Rule Lebanon 1999 max - Oct lastSun 0:00 0 - 2034# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2035Zone Asia/Beirut 2:22:00 - LMT 1880 2036 2:00 Lebanon EE%sT 2037 2038# Malaysia 2039# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2040Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer 2041Rule NBorneo 1935 1941 - Dec 14 0:00 0 - 2042# 2043# peninsular Malaysia 2044# taken from Mok Ly Yng (2003-10-30) 2045# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html 2046# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2047Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1 2048 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 2049 7:00 - +07 1933 Jan 1 2050 7:00 0:20 +0720 1936 Jan 1 2051 7:20 - +0720 1941 Sep 1 2052 7:30 - +0730 1942 Feb 16 2053 9:00 - +09 1945 Sep 12 2054 7:30 - +0730 1982 Jan 1 2055 8:00 - +08 2056# Sabah & Sarawak 2057# From Paul Eggert (2014-08-12): 2058# The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945 2059# and 1982 transition dates are from Mok Ly Yng. 2060# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2061Zone Asia/Kuching 7:21:20 - LMT 1926 Mar 2062 7:30 - +0730 1933 2063 8:00 NBorneo +08/+0820 1942 Feb 16 2064 9:00 - +09 1945 Sep 12 2065 8:00 - +08 2066 2067# Maldives 2068# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2069Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé 2070 4:54:00 - MMT 1960 # Malé Mean Time 2071 5:00 - +05 2072 2073# Mongolia 2074 2075# Shanks & Pottenger say that Mongolia has three time zones, but 2076# The USNO (1995-12-21) and the CIA map Standard Time Zones of the World 2077# (2005-03) both say that it has just one. 2078 2079# From Oscar van Vlijmen (1999-12-11): 2080# General Information Mongolia 2081# <http://www.mongoliatourism.gov.mn/general.htm> (1999-09) 2082# "Time: Mongolia has two time zones. Three westernmost provinces of 2083# Bayan-Ölgii, Uvs, and Hovd are one hour earlier than the capital city, and 2084# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus 2085# eight hours." 2086 2087# From Rives McDow (1999-12-13): 2088# Mongolia discontinued the use of daylight savings time in 1999; 1998 2089# being the last year it was implemented. The dates of implementation I am 2090# unsure of, but most probably it was similar to Russia, except for the time 2091# of implementation may have been different.... 2092# Some maps in the past have indicated that there was an additional time 2093# zone in the eastern part of Mongolia, including the provinces of Dornod, 2094# Sükhbaatar, and possibly Khentii. 2095 2096# From Paul Eggert (1999-12-15): 2097# Naming and spelling is tricky in Mongolia. 2098# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone; 2099# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us, 2100# and sometimes Jirgalanta (with variant spellings), but the name Hovd 2101# is good enough for our purposes. 2102 2103# From Rives McDow (2001-05-13): 2104# In addition to Mongolia starting daylight savings as reported earlier 2105# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28), 2106# there are three time zones. 2107# 2108# Provinces [at 7:00]: Bayan-Ölgii, Uvs, Khovd, Zavkhan, Govi-Altai 2109# Provinces [at 8:00]: Khövsgöl, Bulgan, Arkhangai, Khentii, Töv, 2110# Bayankhongor, Övörkhangai, Dundgovi, Dornogovi, Ömnögovi 2111# Provinces [at 9:00]: Dornod, Sükhbaatar 2112# 2113# [The province of Selenge is omitted from the above lists.] 2114 2115# From Ganbold Ts., Ulaanbaatar (2004-04-17): 2116# Daylight saving occurs at 02:00 local time last Saturday of March. 2117# It will change back to normal at 02:00 local time last Saturday of 2118# September.... As I remember this rule was changed in 2001. 2119# 2120# From Paul Eggert (2004-04-17): 2121# For now, assume Rives McDow's informant got confused about Friday vs 2122# Saturday, and that his 2001 dates should have 1 added to them. 2123 2124# From Paul Eggert (2005-07-26): 2125# We have wildly conflicting information about Mongolia's time zones. 2126# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says 2127# there is only one time zone and that DST is observed, citing Microsoft 2128# Windows XP as the source. Risto Nykänen (2005-05-16) reports that 2129# travelmongolia.org says there are two time zones (UT +07, +08) with no DST. 2130# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in 2131# Washington, DC says there are two time zones, with DST observed. 2132# He also found 2133# http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1& 2134# which also says that there is DST, and which has a comment by "Toddius" 2135# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones. 2136# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT 2137# and some Eastern provinces are +9 GMT but Sükhbaatar Aimag is SUHK +8.5 GMT. 2138# The SUKH timezone is new this year, it is one of the few things the 2139# parliament passed during the tumultuous winter session." 2140# For now, let's ignore this information, until we have more confirmation. 2141 2142# From Ganbold Ts. (2007-02-26): 2143# Parliament of Mongolia has just changed the daylight-saving rule in February. 2144# They decided not to adopt daylight-saving time.... 2145# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742 2146 2147# From Deborah Goldsmith (2008-03-30): 2148# We received a bug report claiming that the tz database UTC offset for 2149# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT 2150# +08:00 instead. Different sources appear to disagree with the tz 2151# database on this, e.g.: 2152# 2153# https://www.timeanddate.com/worldclock/city.html?n=1026 2154# http://www.worldtimeserver.com/current_time_in_MN.aspx 2155# 2156# both say GMT+08:00. 2157 2158# From Steffen Thorsen (2008-03-31): 2159# eznis airways, which operates several domestic flights, has a flight 2160# schedule here: 2161# http://www.eznis.com/Container.jsp?id=112 2162# (click the English flag for English) 2163# 2164# There it appears that flights between Choibalsan and Ulaanbaatar arrive 2165# about 1:35 - 1:50 hours later in local clock time, no matter the 2166# direction, while Ulaanbaatar-Khovd takes 2 hours in the Eastern 2167# direction and 3:35 back, which indicates that Ulaanbaatar and Khovd are 2168# in different time zones (like we know about), while Choibalsan and 2169# Ulaanbaatar are in the same time zone (correction needed). 2170 2171# From Arthur David Olson (2008-05-19): 2172# Assume that Choibalsan is indeed offset by 8:00. 2173# XXX--in the absence of better information, assume that transition 2174# was at the start of 2008-03-31 (the day of Steffen Thorsen's report); 2175# this is almost surely wrong. 2176 2177# From Ganbold Tsagaankhuu (2015-03-10): 2178# It seems like yesterday Mongolian Government meeting has concluded to use 2179# daylight saving time in Mongolia.... Starting at 2:00AM of last Saturday of 2180# March 2015, daylight saving time starts. And 00:00AM of last Saturday of 2181# September daylight saving time ends. Source: 2182# http://zasag.mn/news/view/8969 2183 2184# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2185Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S 2186Rule Mongol 1983 only - Oct 1 0:00 0 - 2187# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00, 2188# but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM 2189# (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998. 2190# 2191# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches 2192# in Choibalsan (more precisely, in Dornod and Sükhbaatar) took place 2193# at 02:00 standard time, not at 00:00 local time as in the rest of 2194# the country. That would be odd, and possibly is a result of their 2195# correction of 02:00 (in the previous edition) not being done correctly 2196# in the latest edition; so ignore it for now. 2197 2198# From Ganbold Tsagaankhuu (2017-02-09): 2199# Mongolian Government meeting has concluded today to cancel daylight 2200# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192 2201 2202Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S 2203Rule Mongol 1984 1998 - Sep lastSun 0:00 0 - 2204# IATA SSIM (1999-09) says Mongolia no longer observes DST. 2205Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S 2206Rule Mongol 2001 2006 - Sep lastSat 2:00 0 - 2207Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S 2208Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S 2209Rule Mongol 2015 2016 - Sep lastSat 0:00 0 - 2210 2211# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2212# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta 2213Zone Asia/Hovd 6:06:36 - LMT 1905 Aug 2214 6:00 - +06 1978 2215 7:00 Mongol +07/+08 2216# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga 2217Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug 2218 7:00 - +07 1978 2219 8:00 Mongol +08/+09 2220# Choibalsan, a.k.a. Bajan Tümen, Bajan Tumen, Chojbalsan, 2221# Choybalsan, Sanbejse, Tchoibalsan 2222Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug 2223 7:00 - +07 1978 2224 8:00 - +08 1983 Apr 2225 9:00 Mongol +09/+10 2008 Mar 31 2226 8:00 Mongol +08/+09 2227 2228# Nepal 2229# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2230Zone Asia/Kathmandu 5:41:16 - LMT 1920 2231 5:30 - +0530 1986 2232 5:45 - +0545 2233 2234# Oman 2235# See Asia/Dubai. 2236 2237# Pakistan 2238 2239# From Rives McDow (2002-03-13): 2240# I have been advised that Pakistan has decided to adopt dst on a 2241# TRIAL basis for one year, starting 00:01 local time on April 7, 2002 2242# and ending at 00:01 local time October 6, 2002. This is what I was 2243# told, but I believe that the actual time of change may be 00:00; the 2244# 00:01 was to make it clear which day it was on. 2245 2246# From Paul Eggert (2002-03-15): 2247# Jesper Nørgaard found this URL: 2248# http://www.pak.gov.pk/public/news/app/app06_dec.htm 2249# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to 2250# advance the clocks by one hour on the night between the first 2251# Saturday and Sunday of April and revert to the original position on 2252# 15th October each year". This agrees with McDow's 04-07 at 00:00, 2253# but disagrees about the October transition, and makes it sound like 2254# it's not on a trial basis. Also, the "between the first Saturday 2255# and Sunday of April" phrase, if taken literally, means that the 2256# transition takes place at 00:00 on the first Sunday on or after 04-02. 2257 2258# From Paul Eggert (2003-02-09): 2259# DAWN <http://www.dawn.com/2002/10/06/top13.htm> reported on 2002-10-05 2260# that 2002 DST ended that day at midnight. Go with McDow for now. 2261 2262# From Steffen Thorsen (2003-03-14): 2263# According to http://www.dawn.com/2003/03/07/top15.htm 2264# there will be no DST in Pakistan this year: 2265# 2266# ISLAMABAD, March 6: Information and Media Development Minister Sheikh 2267# Rashid Ahmed on Thursday said the cabinet had reversed a previous 2268# decision to advance clocks by one hour in summer and put them back by 2269# one hour in winter with the aim of saving light hours and energy. 2270# 2271# The minister told a news conference that the experiment had rather 2272# shown 8 per cent higher consumption of electricity. 2273 2274# From Alex Krivenyshev (2008-05-15): 2275# 2276# Here is an article that Pakistan plan to introduce Daylight Saving Time 2277# on June 1, 2008 for 3 months. 2278# 2279# "... The federal cabinet on Wednesday announced a new conservation plan to 2280# help reduce load shedding by approving the closure of commercial centres at 2281# 9pm and moving clocks forward by one hour for the next three months. ...." 2282# 2283# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html 2284# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4 2285 2286# From Arthur David Olson (2008-05-19): 2287# XXX--midnight transitions is a guess; 2008 only is a guess. 2288 2289# From Alexander Krivenyshev (2008-08-28): 2290# Pakistan government has decided to keep the watches one-hour advanced 2291# for another 2 months - plan to return to Standard Time on October 31 2292# instead of August 31. 2293# 2294# http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html 2295# http://dailymailnews.com/200808/28/news/dmbrn03.html 2296 2297# From Alexander Krivenyshev (2009-04-08): 2298# Based on previous media reports that "... proposed plan to 2299# advance clocks by one hour from May 1 will cause disturbance 2300# to the working schedules rather than bringing discipline in 2301# official working." 2302# http://www.thenews.com.pk/daily_detail.asp?id=171280 2303# 2304# recent news that instead of May 2009 - Pakistan plan to 2305# introduce DST from April 15, 2009 2306# 2307# FYI: Associated Press Of Pakistan 2308# April 08, 2009 2309# Cabinet okays proposal to advance clocks by one hour from April 15 2310# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1 2311# http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html 2312# 2313# .... 2314# The Federal Cabinet on Wednesday approved the proposal to 2315# advance clocks in the country by one hour from April 15 to 2316# conserve energy" 2317 2318# From Steffen Thorsen (2009-09-17): 2319# "The News International," Pakistan reports that: "The Federal 2320# Government has decided to restore the previous time by moving the 2321# clocks backward by one hour from October 1. A formal announcement to 2322# this effect will be made after the Prime Minister grants approval in 2323# this regard." 2324# http://www.thenews.com.pk/updates.asp?id=87168 2325 2326# From Alexander Krivenyshev (2009-09-28): 2327# According to Associated Press Of Pakistan, it is confirmed that 2328# Pakistan clocks across the country would be turned back by an hour from 2329# October 1, 2009. 2330# 2331# "Clocks to go back one hour from 1 Oct" 2332# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2 2333# http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm 2334# 2335# From Steffen Thorsen (2009-09-29): 2336# Now they seem to have changed their mind, November 1 is the new date: 2337# http://www.thenews.com.pk/top_story_detail.asp?Id=24742 2338# "The country's clocks will be reversed by one hour on November 1. 2339# Officials of Federal Ministry for Interior told this to Geo News on 2340# Monday." 2341# 2342# And more importantly, it seems that these dates will be kept every year: 2343# "It has now been decided that clocks will be wound forward by one hour 2344# on April 15 and reversed by an hour on November 1 every year without 2345# obtaining prior approval, the officials added." 2346# 2347# We have confirmed this year's end date with both with the Ministry of 2348# Water and Power and the Pakistan Electric Power Company: 2349# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html 2350 2351# From Christoph Göhre (2009-10-01): 2352# [T]he German Consulate General in Karachi reported me today that Pakistan 2353# will go back to standard time on 1st of November. 2354 2355# From Steffen Thorsen (2010-03-26): 2356# Steffen Thorsen wrote: 2357# > On Thursday (2010-03-25) it was announced that DST would start in 2358# > Pakistan on 2010-04-01. 2359# > 2360# > Then today, the president said that they might have to revert the 2361# > decision if it is not supported by the parliament. So at the time 2362# > being, it seems unclear if DST will be actually observed or not - but 2363# > April 1 could be a more likely date than April 15. 2364# Now, it seems that the decision to not observe DST in final: 2365# 2366# "Govt Withdraws Plan To Advance Clocks" 2367# http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041 2368# 2369# "People laud PM's announcement to end DST" 2370# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2 2371 2372# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2373Rule Pakistan 2002 only - Apr Sun>=2 0:00 1:00 S 2374Rule Pakistan 2002 only - Oct Sun>=2 0:00 0 - 2375Rule Pakistan 2008 only - Jun 1 0:00 1:00 S 2376Rule Pakistan 2008 2009 - Nov 1 0:00 0 - 2377Rule Pakistan 2009 only - Apr 15 0:00 1:00 S 2378 2379# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2380Zone Asia/Karachi 4:28:12 - LMT 1907 2381 5:30 - +0530 1942 Sep 2382 5:30 1:00 +0630 1945 Oct 15 2383 5:30 - +0530 1951 Sep 30 2384 5:00 - +05 1971 Mar 26 2385 5:00 Pakistan PK%sT # Pakistan Time 2386 2387# Palestine 2388 2389# From Amos Shapir (1998-02-15): 2390# 2391# From 1917 until 1948-05-15, all of Palestine, including the parts now 2392# known as the Gaza Strip and the West Bank, was under British rule. 2393# Therefore the rules given for Israel for that period, apply there too... 2394# 2395# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05 2396# (except a short occupation by Israel from 1956-11 till 1957-03, but no 2397# time zone was affected then). It was never formally annexed to Egypt, 2398# though. 2399# 2400# The rest of Palestine was under Jordanian rule at that time, formally 2401# annexed in 1950 as the West Bank (and the word "Trans" was dropped from 2402# the country's previous name of "the Hashemite Kingdom of the 2403# Trans-Jordan"). So the rules for Jordan for that time apply. Major 2404# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and 2405# East Jerusalem. 2406# 2407# Both areas were occupied by Israel in June 1967, but not annexed (except 2408# for East Jerusalem). They were on Israel time since then; there might 2409# have been a Military Governor's order about time zones, but I'm not aware 2410# of any (such orders may have been issued semi-annually whenever summer 2411# time was in effect, but maybe the legal aspect of time was just neglected). 2412# 2413# The Palestinian Authority was established in 1993, and got hold of most 2414# towns in the West Bank and Gaza by 1995. I know that in order to 2415# demonstrate...independence, they have been switching to 2416# summer time and back on a different schedule than Israel's, but I don't 2417# know when this was started, or what algorithm is used (most likely the 2418# Jordanian one). 2419# 2420# To summarize, the table should probably look something like that: 2421# 2422# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996- 2423# ------------+-----------+-----------+-----------+----------- 2424# Israel | Zion | Zion | Zion | Zion 2425# West bank | Zion | Jordan | Zion | Jordan 2426# Gaza | Zion | Egypt | Zion | Jordan 2427# 2428# I guess more info may be available from the PA's web page (if/when they 2429# have one). 2430 2431# From Paul Eggert (2006-03-22): 2432# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go 2433# with Shapir and assume that it observed DST from 1940 through 1947, 2434# and that it used Jordanian rules starting in 1996. 2435# We don't yet need a separate entry for the West Bank, since 2436# the only differences between it and Gaza that we know about 2437# occurred before our cutoff date of 1970. 2438# However, as we get more information, we may need to add entries 2439# for parts of the West Bank as they transitioned from Israel's rules 2440# to Palestine's rules. 2441 2442# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time, 2443# forwarded by Ephraim Silverberg: 2444# 2445# Despite the fact that Israel changed over to daylight savings time 2446# last week, the PLO Authority (PA) has decided not to turn its clocks 2447# one-hour forward at this time. As a sign of independence from Israeli rule, 2448# the PA has decided to implement DST in April. 2449 2450# From Paul Eggert (1999-09-20): 2451# Daoud Kuttab writes in Holiday havoc 2452# http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html 2453# (Jerusalem Post, 1999-04-22) that 2454# the Palestinian National Authority changed to DST on 1999-04-15. 2455# I vaguely recall that they switch back in October (sorry, forgot the source). 2456# For now, let's assume that the spring switch was at 24:00, 2457# and that they switch at 0:00 on the 3rd Fridays of April and October. 2458 2459# From Paul Eggert (2005-11-22): 2460# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com. 2461 2462# From Steffen Thorsen (2005-11-23): 2463# A user from Gaza reported that Gaza made the change early because of 2464# the Ramadan. Next year Ramadan will be even earlier, so I think 2465# there is a good chance next year's end date will be around two weeks 2466# earlier - the same goes for Jordan. 2467 2468# From Steffen Thorsen (2006-08-17): 2469# I was informed by a user in Bethlehem that in Bethlehem it started the 2470# same day as Israel, and after checking with other users in the area, I 2471# was informed that they started DST one day after Israel. I was not 2472# able to find any authoritative sources at the time, nor details if 2473# Gaza changed as well, but presumed Gaza to follow the same rules as 2474# the West Bank. 2475 2476# From Steffen Thorsen (2006-09-26): 2477# according to the Palestine News Network (2006-09-19): 2478# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5 2479# > The Council of Ministers announced that this year its winter schedule 2480# > will begin early, as of midnight Thursday. It is also time to turn 2481# > back the clocks for winter. Friday will begin an hour late this week. 2482# I guess it is likely that next year's date will be moved as well, 2483# because of the Ramadan. 2484 2485# From Jesper Nørgaard Welen (2007-09-18): 2486# According to Steffen Thorsen's web site the Gaza Strip and the rest of the 2487# Palestinian territories left DST early on 13.th. of September at 2:00. 2488 2489# From Paul Eggert (2007-09-20): 2490# My understanding is that Gaza and the West Bank disagree even over when 2491# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit 2492# surprised if they agreed about DST. But for now, assume they agree. 2493# For lack of better information, predict that future changes will be 2494# the 2nd Thursday of September at 02:00. 2495 2496# From Alexander Krivenyshev (2008-08-28): 2497# Here is an article, that Mideast running on different clocks at Ramadan. 2498# 2499# Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while 2500# the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008). 2501# 2502# http://www.guardian.co.uk/world/feedarticle/7759001 2503# http://www.abcnews.go.com/International/wireStory?id=5676087 2504# http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html 2505 2506# From Alexander Krivenyshev (2009-03-26): 2507# According to the Palestine News Network (arabic.pnn.ps), Palestinian 2508# government decided to start Daylight Time on Thursday night March 2509# 26 and continue until the night of 27 September 2009. 2510# 2511# (in Arabic) 2512# http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850 2513# 2514# (English translation) 2515# http://www.worldtimezone.com/dst_news/dst_news_westbank01.html 2516 2517# From Steffen Thorsen (2009-08-31): 2518# Palestine's Council of Ministers announced that they will revert back to 2519# winter time on Friday, 2009-09-04. 2520# 2521# One news source: 2522# http://www.safa.ps/ara/?action=showdetail&seid=4158 2523# (Palestinian press agency, Arabic), 2524# Google translate: "Decided that the Palestinian government in Ramallah 2525# headed by Salam Fayyad, the start of work in time for the winter of 2526# 2009, starting on Friday approved the fourth delay Sept. clock sixty 2527# minutes per hour as of Friday morning." 2528# 2529# We are not sure if Gaza will do the same, last year they had a different 2530# end date, we will keep this page updated: 2531# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html 2532 2533# From Alexander Krivenyshev (2009-09-02): 2534# Seems that Gaza Strip will go back to Winter Time same date as West Bank. 2535# 2536# According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan 2537# to change time back to Standard time on September 4, 2009. 2538# 2539# "Winter time unite the West Bank and Gaza" 2540# (from Palestinian National Authority): 2541# http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505 2542# http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html 2543 2544# From Alexander Krivenyshev (2010-03-19): 2545# According to Voice of Palestine DST will last for 191 days, from March 2546# 26, 2010 till "the last Sunday before the tenth day of Tishri 2547# (October), each year" (October 03, 2010?) 2548# 2549# http://palvoice.org/forums/showthread.php?t=245697 2550# (in Arabic) 2551# http://www.worldtimezone.com/dst_news/dst_news_westbank03.html 2552 2553# From Steffen Thorsen (2010-03-24): 2554# ...Ma'an News Agency reports that Hamas cabinet has decided it will 2555# start one day later, at 12:01am. Not sure if they really mean 12:01am or 2556# noon though: 2557# 2558# http://www.maannews.net/eng/ViewDetails.aspx?ID=271178 2559# (Ma'an News Agency) 2560# "At 12:01am Friday, clocks in Israel and the West Bank will change to 2561# 1:01am, while Gaza clocks will change at 12:01am Saturday morning." 2562 2563# From Steffen Thorsen (2010-08-11): 2564# According to several sources, including 2565# http://www.maannews.net/eng/ViewDetails.aspx?ID=306795 2566# the clocks were set back one hour at 2010-08-11 00:00:00 local time in 2567# Gaza and the West Bank. 2568# Some more background info: 2569# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html 2570 2571# From Steffen Thorsen (2011-08-26): 2572# Gaza and the West Bank did go back to standard time in the beginning of 2573# August, and will now enter daylight saving time again on 2011-08-30 2574# 00:00 (so two periods of DST in 2011). The pause was because of 2575# Ramadan. 2576# 2577# http://www.maannews.net/eng/ViewDetails.aspx?ID=416217 2578# Additional info: 2579# https://www.timeanddate.com/news/time/palestine-dst-2011.html 2580 2581# From Alexander Krivenyshev (2011-08-27): 2582# According to the article in The Jerusalem Post: 2583# "...Earlier this month, the Palestinian government in the West Bank decided to 2584# move to standard time for 30 days, during Ramadan. The Palestinians in the 2585# Gaza Strip accepted the change and also moved their clocks one hour back. 2586# The Hamas government said on Saturday that it won't observe summertime after 2587# the Muslim feast of Id al-Fitr, which begins on Tuesday..." 2588# ... 2589# https://www.jpost.com/MiddleEast/Article.aspx?id=235650 2590# http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html 2591# The rules for Egypt are stolen from the 'africa' file. 2592 2593# From Steffen Thorsen (2011-09-30): 2594# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30 2595# 00:00). 2596# So West Bank and Gaza now have the same time again. 2597# 2598# Many sources, including: 2599# http://www.maannews.net/eng/ViewDetails.aspx?ID=424808 2600 2601# From Steffen Thorsen (2012-03-26): 2602# Palestinian news sources tell that both Gaza and West Bank will start DST 2603# on Friday (Thursday midnight, 2012-03-29 24:00). 2604# Some of many sources in Arabic: 2605# http://www.samanews.com/index.php?act=Show&id=122638 2606# 2607# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html 2608# 2609# Our brief summary: 2610# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html 2611 2612# From Steffen Thorsen (2013-03-26): 2613# The following news sources tells that Palestine will "start daylight saving 2614# time from midnight on Friday, March 29, 2013" (translated). 2615# [These are in Arabic and are for Gaza and for Ramallah, respectively.] 2616# http://www.samanews.com/index.php?act=Show&id=154120 2617# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html 2618 2619# From Steffen Thorsen (2013-09-24): 2620# The Gaza and West Bank are ending DST Thursday at midnight 2621# (2013-09-27 00:00:00) (one hour earlier than last year...). 2622# This source in English, says "that winter time will go into effect 2623# at midnight on Thursday in the West Bank and Gaza Strip": 2624# http://english.wafa.ps/index.php?action=detail&id=23246 2625# official source...: 2626# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252 2627 2628# From Steffen Thorsen (2015-03-03): 2629# Sources such as http://www.alquds.com/news/article/view/id/548257 2630# and https://www.raya.ps/ar/news/890705.html say Palestine areas will 2631# start DST on 2015-03-28 00:00 which is one day later than expected. 2632# 2633# From Paul Eggert (2015-03-03): 2634# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014 2635# says that the fall 2014 transition was Oct 23 at 24:00. 2636 2637# From Hannah Kreitem (2016-03-09): 2638# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728 2639# [Google translation]: "The Council also decided to start daylight 2640# saving in Palestine as of one o'clock on Saturday morning, 2641# 2016-03-26, to provide the clock 60 minutes ahead." 2642# 2643# From Paul Eggert (2016-03-12): 2644# Predict spring transitions on March's last Saturday at 01:00 from now on. 2645 2646# From Sharef Mustafa (2016-10-19): 2647# [T]he Palestinian cabinet decision (Mar 8th 2016) published on 2648# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf 2649# states that summer time will end on Oct 29th at 01:00. 2650# 2651# From Tim Parenti (2016-10-19): 2652# Predict fall transitions on October's last Saturday at 01:00 from now on. 2653# This is consistent with the 2016 transition as well as our spring 2654# predictions. 2655# 2656# From Paul Eggert (2016-10-19): 2657# It's also consistent with predictions in the following URLs today: 2658# https://www.timeanddate.com/time/change/gaza-strip/gaza 2659# https://www.timeanddate.com/time/change/west-bank/hebron 2660 2661# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2662Rule EgyptAsia 1957 only - May 10 0:00 1:00 S 2663Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 - 2664Rule EgyptAsia 1958 only - May 1 0:00 1:00 S 2665Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S 2666Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 - 2667Rule EgyptAsia 1966 only - Oct 1 3:00 0 - 2668 2669Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S 2670Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 - 2671Rule Palestine 2004 only - Oct 1 1:00 0 - 2672Rule Palestine 2005 only - Oct 4 2:00 0 - 2673Rule Palestine 2006 2007 - Apr 1 0:00 1:00 S 2674Rule Palestine 2006 only - Sep 22 0:00 0 - 2675Rule Palestine 2007 only - Sep Thu>=8 2:00 0 - 2676Rule Palestine 2008 2009 - Mar lastFri 0:00 1:00 S 2677Rule Palestine 2008 only - Sep 1 0:00 0 - 2678Rule Palestine 2009 only - Sep Fri>=1 1:00 0 - 2679Rule Palestine 2010 only - Mar 26 0:00 1:00 S 2680Rule Palestine 2010 only - Aug 11 0:00 0 - 2681Rule Palestine 2011 only - Apr 1 0:01 1:00 S 2682Rule Palestine 2011 only - Aug 1 0:00 0 - 2683Rule Palestine 2011 only - Aug 30 0:00 1:00 S 2684Rule Palestine 2011 only - Sep 30 0:00 0 - 2685Rule Palestine 2012 2014 - Mar lastThu 24:00 1:00 S 2686Rule Palestine 2012 only - Sep 21 1:00 0 - 2687Rule Palestine 2013 only - Sep Fri>=21 0:00 0 - 2688Rule Palestine 2014 2015 - Oct Fri>=21 0:00 0 - 2689Rule Palestine 2015 only - Mar lastFri 24:00 1:00 S 2690Rule Palestine 2016 max - Mar lastSat 1:00 1:00 S 2691Rule Palestine 2016 max - Oct lastSat 1:00 0 - 2692 2693# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2694Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2695 2:00 Zion EET/EEST 1948 May 15 2696 2:00 EgyptAsia EE%sT 1967 Jun 5 2697 2:00 Zion I%sT 1996 2698 2:00 Jordan EE%sT 1999 2699 2:00 Palestine EE%sT 2008 Aug 29 0:00 2700 2:00 - EET 2008 Sep 2701 2:00 Palestine EE%sT 2010 2702 2:00 - EET 2010 Mar 27 0:01 2703 2:00 Palestine EE%sT 2011 Aug 1 2704 2:00 - EET 2012 2705 2:00 Palestine EE%sT 2706 2707Zone Asia/Hebron 2:20:23 - LMT 1900 Oct 2708 2:00 Zion EET/EEST 1948 May 15 2709 2:00 EgyptAsia EE%sT 1967 Jun 5 2710 2:00 Zion I%sT 1996 2711 2:00 Jordan EE%sT 1999 2712 2:00 Palestine EE%sT 2713 2714# Paracel Is 2715# no information 2716 2717# Philippines 2718# On 1844-08-16, Narciso Clavería, governor-general of the 2719# Philippines, issued a proclamation announcing that 1844-12-30 was to 2720# be immediately followed by 1845-01-01; see R.H. van Gent's 2721# History of the International Date Line 2722# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm 2723# The rest of the data entries are from Shanks & Pottenger. 2724 2725# From Jesper Nørgaard Welen (2006-04-26): 2726# ... claims that Philippines had DST last time in 1990: 2727# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/ 2728# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires, 2729# but no details] 2730 2731# From Paul Eggert (2014-08-14): 2732# The following source says DST may be instituted November-January and again 2733# March-June, but this is not definite. It also says DST was last proclaimed 2734# during the Ramos administration (1992-1998); but again, no details. 2735# Carcamo D. PNoy urged to declare use of daylight saving time. 2736# Philippine Star 2014-08-05 2737# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time 2738 2739# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2740Rule Phil 1936 only - Nov 1 0:00 1:00 S 2741Rule Phil 1937 only - Feb 1 0:00 0 - 2742Rule Phil 1954 only - Apr 12 0:00 1:00 S 2743Rule Phil 1954 only - Jul 1 0:00 0 - 2744Rule Phil 1978 only - Mar 22 0:00 1:00 S 2745Rule Phil 1978 only - Sep 21 0:00 0 - 2746# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2747Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 2748 8:04:00 - LMT 1899 May 11 2749 8:00 Phil +08/+09 1942 May 2750 9:00 - +09 1944 Nov 2751 8:00 Phil +08/+09 2752 2753# Qatar 2754# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2755Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha 2756 4:00 - +04 1972 Jun 2757 3:00 - +03 2758Link Asia/Qatar Asia/Bahrain 2759 2760# Saudi Arabia 2761# 2762# From Paul Eggert (2014-07-15): 2763# Time in Saudi Arabia and other countries in the Arabian peninsula was not 2764# standardized until relatively recently; we don't know when, and possibly it 2765# has never been made official. Richard P Hunt, in "Islam city yielding to 2766# modern times", New York Times (1961-04-09), p 20, wrote that only airlines 2767# observed standard time, and that people in Jeddah mostly observed quasi-solar 2768# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12 2769# o'clock for "Arab" time). 2770# 2771# The TZ database cannot represent quasi-solar time; airline time is the best 2772# we can do. The 1946 foreign air news digest of the U.S. Civil Aeronautics 2773# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated 2774# a weekly Dhahran-Cairo service, via the Saudi Arabian cities of Riyadh and 2775# Jidda, on March 14, 1947". Shanks & Pottenger guessed 1950; go with the 2776# earlier date. 2777# 2778# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two 2779# time zones; the other zone, at UT +04, was in the far eastern part of 2780# the country. Ignore this, as it's before our 1970 cutoff. 2781# 2782# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2783Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14 2784 3:00 - +03 2785Link Asia/Riyadh Asia/Aden # Yemen 2786Link Asia/Riyadh Asia/Kuwait 2787 2788# Singapore 2789# taken from Mok Ly Yng (2003-10-30) 2790# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html 2791# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2792Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 2793 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 2794 7:00 - +07 1933 Jan 1 2795 7:00 0:20 +0720 1936 Jan 1 2796 7:20 - +0720 1941 Sep 1 2797 7:30 - +0730 1942 Feb 16 2798 9:00 - +09 1945 Sep 12 2799 7:30 - +0730 1982 Jan 1 2800 8:00 - +08 2801 2802# Spratly Is 2803# no information 2804 2805# Sri Lanka 2806 2807# From Paul Eggert (2013-02-21): 2808# Milne says "Madras mean time use from May 1, 1898. Prior to this Colombo 2809# mean time, 5h. 4m. 21.9s. F., was used." But 5:04:21.9 differs considerably 2810# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with 2811# Shanks and Pottenger. 2812 2813# From Paul Eggert (1996-09-03): 2814# "Sri Lanka advances clock by an hour to avoid blackout" 2815# (<http://www.virtual-pc.com/lankaweb/news/items/240596-2.html>, 1996-05-24, 2816# no longer available as of 1999-08-17) 2817# reported "the country's standard time will be put forward by one hour at 2818# midnight Friday (1830 GMT) 'in the light of the present power crisis'." 2819# 2820# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted 2821# by Shamindra in Daily News - Hot News Section 2822# <news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net> (1996-10-26): 2823# With effect from 12.30 a.m. on 26th October 1996 2824# Sri Lanka will be six (06) hours ahead of GMT. 2825 2826# From Jesper Nørgaard Welen (2006-04-14), quoting Sri Lanka News Online 2827# <http://news.sinhalaya.com/wmview.php?ArtID=11002> (2006-04-13): 2828# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes) 2829# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006). 2830 2831# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in: 2832# http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML 2833# [The Tamil Tigers] never accepted the original 1996 time change and simply 2834# kept their clocks set five and a half hours ahead of Greenwich Mean 2835# Time (GMT), in line with neighbor India. 2836# From Paul Eggert (2006-04-18): 2837# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'], 2838# as that zone has agreed with the Tamil areas since our cutoff date of 1970. 2839 2840# From Sadika Sumanapala (2016-10-19): 2841# According to http://www.sltime.org (maintained by Measurement Units, 2842# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka 2843# standard time is SLST. 2844# 2845# From Paul Eggert (2016-10-18): 2846# "SLST" seems to be reasonably recent and rarely-used outside time 2847# zone nerd sources. I searched Google News and found three uses of 2848# it in the International Business Times of India in February and 2849# March of this year when discussing cricket match times, but nothing 2850# since then (though there has been a lot of cricket) and nothing in 2851# other English-language news sources. Our old abbreviation "LKT" is 2852# even worse. For now, let's use a numeric abbreviation; we can 2853# switch to "SLST" if it catches on. 2854 2855# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2856Zone Asia/Colombo 5:19:24 - LMT 1880 2857 5:19:32 - MMT 1906 # Moratuwa Mean Time 2858 5:30 - +0530 1942 Jan 5 2859 5:30 0:30 +06 1942 Sep 2860 5:30 1:00 +0630 1945 Oct 16 2:00 2861 5:30 - +0530 1996 May 25 0:00 2862 6:30 - +0630 1996 Oct 26 0:30 2863 6:00 - +06 2006 Apr 15 0:30 2864 5:30 - +0530 2865 2866# Syria 2867# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2868Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S 2869Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 - 2870Rule Syria 1962 only - Apr 29 2:00 1:00 S 2871Rule Syria 1962 only - Oct 1 2:00 0 - 2872Rule Syria 1963 1965 - May 1 2:00 1:00 S 2873Rule Syria 1963 only - Sep 30 2:00 0 - 2874Rule Syria 1964 only - Oct 1 2:00 0 - 2875Rule Syria 1965 only - Sep 30 2:00 0 - 2876Rule Syria 1966 only - Apr 24 2:00 1:00 S 2877Rule Syria 1966 1976 - Oct 1 2:00 0 - 2878Rule Syria 1967 1978 - May 1 2:00 1:00 S 2879Rule Syria 1977 1978 - Sep 1 2:00 0 - 2880Rule Syria 1983 1984 - Apr 9 2:00 1:00 S 2881Rule Syria 1983 1984 - Oct 1 2:00 0 - 2882Rule Syria 1986 only - Feb 16 2:00 1:00 S 2883Rule Syria 1986 only - Oct 9 2:00 0 - 2884Rule Syria 1987 only - Mar 1 2:00 1:00 S 2885Rule Syria 1987 1988 - Oct 31 2:00 0 - 2886Rule Syria 1988 only - Mar 15 2:00 1:00 S 2887Rule Syria 1989 only - Mar 31 2:00 1:00 S 2888Rule Syria 1989 only - Oct 1 2:00 0 - 2889Rule Syria 1990 only - Apr 1 2:00 1:00 S 2890Rule Syria 1990 only - Sep 30 2:00 0 - 2891Rule Syria 1991 only - Apr 1 0:00 1:00 S 2892Rule Syria 1991 1992 - Oct 1 0:00 0 - 2893Rule Syria 1992 only - Apr 8 0:00 1:00 S 2894Rule Syria 1993 only - Mar 26 0:00 1:00 S 2895Rule Syria 1993 only - Sep 25 0:00 0 - 2896# IATA SSIM (1998-02) says 1998-04-02; 2897# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02, 2898# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31; 2899# (2006) says 2006-03-31 and 2006-09-22; 2900# for now ignore all these claims and go with Shanks & Pottenger, 2901# except for the 2006-09-22 claim (which seems right for Ramadan). 2902Rule Syria 1994 1996 - Apr 1 0:00 1:00 S 2903Rule Syria 1994 2005 - Oct 1 0:00 0 - 2904Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S 2905Rule Syria 1999 2006 - Apr 1 0:00 1:00 S 2906# From Stephen Colebourne (2006-09-18): 2907# According to IATA data, Syria will change DST on 21st September [21:00 UTC] 2908# this year [only].... This is probably related to Ramadan, like Egypt. 2909Rule Syria 2006 only - Sep 22 0:00 0 - 2910# From Paul Eggert (2007-03-29): 2911# Today the AP reported "Syria will switch to summertime at midnight Thursday." 2912# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php 2913Rule Syria 2007 only - Mar lastFri 0:00 1:00 S 2914# From Jesper Nørgaard (2007-10-27): 2915# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will 2916# not take place 1st November at 0:00 o'clock but 1st November at 24:00 or 2917# rather Midnight between Thursday and Friday. This does make more sense than 2918# having it between Wednesday and Thursday (two workdays in Syria) since the 2919# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now 2920# it is implemented at midnight of the last workday before weekend... 2921# 2922# From Steffen Thorsen (2007-10-27): 2923# Jesper Nørgaard Welen wrote: 2924# 2925# > "Winter local time in Syria will be observed at midnight of Thursday 1 2926# > November 2007, and the clock will be put back 1 hour." 2927# 2928# I found confirmation on this in this gov.sy-article (Arabic): 2929# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247 2930# 2931# which using Google's translate tools says: 2932# Council of Ministers also approved the commencement of work on 2933# identifying the winter time as of Friday, 2/11/2007 where the 60th 2934# minute delay at midnight Thursday 1/11/2007. 2935Rule Syria 2007 only - Nov Fri>=1 0:00 0 - 2936 2937# From Stephen Colebourne (2008-03-17): 2938# For everyone's info, I saw an IATA time zone change for [Syria] for 2939# this month (March 2008) in the last day or so.... 2940# Country Time Standard --- DST Start --- --- DST End --- DST 2941# Name Zone Variation Time Date Time Date 2942# Variation 2943# Syrian Arab 2944# Republic SY +0200 2200 03APR08 2100 30SEP08 +0300 2945# 2200 02APR09 2100 30SEP09 +0300 2946# 2200 01APR10 2100 30SEP10 +0300 2947 2948# From Arthur David Olson (2008-03-17): 2949# Here's a link to English-language coverage by the Syrian Arab News 2950# Agency (SANA)... 2951# http://www.sana.sy/eng/21/2008/03/11/165173.htm 2952# ...which reads (in part) "The Cabinet approved the suggestion of the 2953# Ministry of Electricity to begin daylight savings time on Friday April 2954# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd." 2955# Since Syria is two hours east of UTC, the 2200 and 2100 transition times 2956# shown above match up with midnight in Syria. 2957 2958# From Arthur David Olson (2008-03-18): 2959# My best guess at a Syrian rule is "the Friday nearest April 1"; 2960# coding that involves either using a "Mar Fri>=29" construct that old time zone 2961# compilers can't handle or having multiple Rules (a la Israel). 2962# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end. 2963 2964# From Steffen Thorsen (2008-10-07): 2965# Syria has now officially decided to end DST on 2008-11-01 this year, 2966# according to the following article in the Syrian Arab News Agency (SANA). 2967# 2968# The article is in Arabic, and seems to tell that they will go back to 2969# winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting 2970# clocks back 60 minutes). 2971# 2972# http://sana.sy/ara/2/2008/10/07/195459.htm 2973 2974# From Steffen Thorsen (2009-03-19): 2975# Syria will start DST on 2009-03-27 00:00 this year according to many sources, 2976# two examples: 2977# 2978# http://www.sana.sy/eng/21/2009/03/17/217563.htm 2979# (English, Syrian Arab News # Agency) 2980# http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209 2981# (Arabic, gov-site) 2982# 2983# We have not found any sources saying anything about when DST ends this year. 2984# 2985# Our summary 2986# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html 2987 2988# From Steffen Thorsen (2009-10-27): 2989# The Syrian Arab News Network on 2009-09-29 reported that Syria will 2990# revert back to winter (standard) time on midnight between Thursday 2991# 2009-10-29 and Friday 2009-10-30: 2992# http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic) 2993 2994# From Arthur David Olson (2009-10-28): 2995# We'll see if future DST switching times turn out to be end of the last 2996# Thursday of the month or the start of the last Friday of the month or 2997# something else. For now, use the start of the last Friday. 2998 2999# From Steffen Thorsen (2010-03-17): 3000# The "Syrian News Station" reported on 2010-03-16 that the Council of 3001# Ministers has decided that Syria will start DST on midnight Thursday 3002# 2010-04-01: (midnight between Thursday and Friday): 3003# http://sns.sy/sns/?path=news/read/11421 (Arabic) 3004 3005# From Steffen Thorsen (2012-03-26): 3006# Today, Syria's government announced that they will start DST early on Friday 3007# (00:00). This is a bit earlier than the past two years. 3008# 3009# From Syrian Arab News Agency, in Arabic: 3010# http://www.sana.sy/ara/2/2012/03/26/408215.htm 3011# 3012# Our brief summary: 3013# https://www.timeanddate.com/news/time/syria-dst-2012.html 3014 3015# From Arthur David Olson (2012-03-27): 3016# Assume last Friday in March going forward XXX. 3017 3018Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S 3019Rule Syria 2008 only - Nov 1 0:00 0 - 3020Rule Syria 2009 only - Mar lastFri 0:00 1:00 S 3021Rule Syria 2010 2011 - Apr Fri>=1 0:00 1:00 S 3022Rule Syria 2012 max - Mar lastFri 0:00 1:00 S 3023Rule Syria 2009 max - Oct lastFri 0:00 0 - 3024 3025# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3026Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq 3027 2:00 Syria EE%sT 3028 3029# Tajikistan 3030# From Shanks & Pottenger. 3031# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3032Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 3033 5:00 - +05 1930 Jun 21 3034 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s 3035 5:00 1:00 +05/+06 1991 Sep 9 2:00s 3036 5:00 - +05 3037 3038# Thailand 3039# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3040Zone Asia/Bangkok 6:42:04 - LMT 1880 3041 6:42:04 - BMT 1920 Apr # Bangkok Mean Time 3042 7:00 - +07 3043Link Asia/Bangkok Asia/Phnom_Penh # Cambodia 3044Link Asia/Bangkok Asia/Vientiane # Laos 3045 3046# Turkmenistan 3047# From Shanks & Pottenger. 3048# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3049Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad 3050 4:00 - +04 1930 Jun 21 3051 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00 3052 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00 3053 5:00 - +05 3054 3055# United Arab Emirates 3056# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3057Zone Asia/Dubai 3:41:12 - LMT 1920 3058 4:00 - +04 3059Link Asia/Dubai Asia/Muscat # Oman 3060 3061# Uzbekistan 3062# Byalokoz 1919 says Uzbekistan was 4:27:53. 3063# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3064Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2 3065 4:00 - +04 1930 Jun 21 3066 5:00 - +05 1981 Apr 1 3067 5:00 1:00 +06 1981 Oct 1 3068 6:00 - +06 1982 Apr 1 3069 5:00 RussiaAsia +05/+06 1992 3070 5:00 - +05 3071# Milne says Tashkent was 4:37:10.8; round to nearest. 3072Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2 3073 5:00 - +05 1930 Jun 21 3074 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00 3075 5:00 RussiaAsia +05/+06 1992 3076 5:00 - +05 3077 3078# Vietnam 3079 3080# From Paul Eggert (2014-10-04): 3081# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being 3082# used in Lower Laos, Cambodia, and Annam. But this is quite a ways 3083# from Saigon's location. For now, ignore this and stick with Shanks 3084# and Pottenger for LMT before 1906. 3085 3086# From Arthur David Olson (2008-03-18): 3087# The English-language name of Vietnam's most populous city is "Ho Chi Minh 3088# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters. 3089 3090# From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân: 3091# Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)" 3092# (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50, 3093# is quoted verbatim in: 3094# http://www.thoigian.com.vn/?mPage=P80D01 3095# is translated by Brian Inglis in: 3096# https://mm.icann.org/pipermail/tz/2014-October/021654.html 3097# and is the basis for the information below. 3098# 3099# The 1906 transition was effective July 1 and standardized Indochina to 3100# Phù Liễn Observatory, legally 104 deg. 17'17" east of Paris. 3101# It's unclear whether this meant legal Paris Mean Time (00:09:21) or 3102# the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333... 3103# and the latter 07:06:29.333... so either way it rounds to 07:06:30, 3104# which is used below even though the modern-day Phù Liễn Observatory 3105# is closer to 07:06:31. Abbreviate Phù Liễn Mean Time as PLMT. 3106# 3107# The following transitions occurred in Indochina in general (before 1954) 3108# and in South Vietnam in particular (after 1954): 3109# To 07:00 on 1911-05-01. 3110# To 08:00 on 1942-12-31 at 23:00. 3111# To 09:00 in 1945-03-14 at 23:00. 3112# To 07:00 on 1945-09-02 in Vietnam. 3113# To 08:00 on 1947-04-01 in French-controlled Indochina. 3114# To 07:00 on 1955-07-01 in South Vietnam. 3115# To 08:00 on 1959-12-31 at 23:00 in South Vietnam. 3116# To 07:00 on 1975-06-13 in South Vietnam. 3117# 3118# Trần cites the following sources; it's unclear which supplied the info above. 3119# 3120# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội, 3121# No. 9, Paris, February 1982. 3122# 3123# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)", 3124# NXB Thống kê, Hanoi, 2000. 3125# 3126# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu", 3127# NXB Thuận Hoá, Huế, 1995. 3128 3129# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3130Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1 3131 7:06:30 - PLMT 1911 May 1 # Phù Liễn MT 3132 7:00 - +07 1942 Dec 31 23:00 3133 8:00 - +08 1945 Mar 14 23:00 3134 9:00 - +09 1945 Sep 2 3135 7:00 - +07 1947 Apr 1 3136 8:00 - +08 1955 Jul 1 3137 7:00 - +07 1959 Dec 31 23:00 3138 8:00 - +08 1975 Jun 13 3139 7:00 - +07 3140 3141# Yemen 3142# See Asia/Riyadh. 3143