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