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