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# <pre> # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to # tz@iana.org for general use in the future). # From Paul Eggert (2006-03-22): # # A good source for time zone historical data outside the U.S. is # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003). # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport # Association's Standard Schedules Information Manual (IATA SSIM), # published semiannually. Law sent in several helpful summaries # of the IATA's data after 1990. # # Except where otherwise noted, Shanks & Pottenger is the source for # entries through 1990, and IATA SSIM is the source for entries afterwards. # # Another source occasionally used is Edward W. Whitman, World Time Differences, # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which # I found in the UCLA library. # # A reliable and entertaining source about time zones is # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). # # I invented the abbreviations marked `*' in the following table; # the rest are from earlier versions of this file, or from other sources. # Corrections are welcome! # std dst # LMT Local Mean Time # 2:00 EET EEST Eastern European Time # 2:00 IST IDT Israel # 3:00 AST ADT Arabia* # 3:30 IRST IRDT Iran # 4:00 GST Gulf* # 5:30 IST India # 7:00 ICT Indochina* # 7:00 WIT west Indonesia # 8:00 CIT central Indonesia # 8:00 CST China # 9:00 CJT Central Japanese Time (1896/1937)* # 9:00 EIT east Indonesia # 9:00 JST JDT Japan # 9:00 KST KDT Korea # 9:30 CST (Australian) Central Standard Time # # See the `europe' file for Russia and Turkey in Asia. # From Guy Harris: # Incorporates data for Singapore from Robert Elz' asia 1.1, as well as # additional information from Tom Yap, Sun Microsystems Intercontinental # Technical Support (including a page from the Official Airline Guide - # Worldwide Edition). The names for time zones are guesses. ############################################################################### # These rules are stolen from the `europe' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 - Rule EUAsia 1996 max - Oct lastSun 1:00u 0 - Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 - Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 - Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 - Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 - Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 - Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 - Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 - # Afghanistan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Kabul 4:36:48 - LMT 1890 4:00 - AFT 1945 4:30 - AFT # Armenia # From Paul Eggert (2006-03-22): # Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST) # in spring 1991, then to 4:00 with no DST in fall 1995, then # readopting Russian DST in 1997. Go with Shanks & Pottenger, even # when they disagree with others. Edgar Der-Danieliantz # reported (1996-05-04) that Yerevan probably wouldn't use DST # in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that # Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991, # but started switching at 3:00s in 1998. # From Arthur David Olson (2011-06-15): # While Russia abandoned DST in 2011, Armenia may choose to # follow Russia's "old" rules. # From Alexander Krivenyshev (2012-02-10): # According to News Armenia, on Feb 9, 2012, # http://newsarmenia.ru/society/20120209/42609695.html # # The Armenia National Assembly adopted final reading of Amendments to the # Law "On procedure of calculation time on the territory of the Republic of # Armenia" according to which Armenia [is] abolishing Daylight Saving Time. # or # (brief) # http://www.worldtimezone.com/dst_news/dst_news_armenia03.html # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 3:00 - YERT 1957 Mar # Yerevan Time 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s 3:00 1:00 YERST 1991 Sep 23 # independence 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s 4:00 - AMT 1997 4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s 4:00 - AMT # Azerbaijan # From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23): # According to the resolution of Cabinet of Ministers, 1997 # Resolution available at: http://aif.az/docs/daylight_res.pdf # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Azer 1997 max - Mar lastSun 4:00 1:00 S Rule Azer 1997 max - Oct lastSun 5:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:19:24 - LMT 1924 May 2 3:00 - BAKT 1957 Mar # Baku Time 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s 3:00 1:00 BAKST 1991 Aug 30 # independence 3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00 4:00 - AZT 1996 # Azerbaijan time 4:00 EUAsia AZ%sT 1997 4:00 Azer AZ%sT # Bahrain # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah 4:00 - GST 1972 Jun 3:00 - AST # Bangladesh # From Alexander Krivenyshev (2009-05-13): # According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce # Daylight Saving Time from June 16 to Sept 30 # # Bangladesh to introduce daylight saving time likely from June 16 # <a href="http://www.asiantribune.com/?q=node/17288"> # http://www.asiantribune.com/?q=node/17288 # </a> # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html"> # http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html # </a> # # "... Bangladesh government has decided to switch daylight saving time from # June # 16 till September 30 in a bid to ensure maximum use of daylight to cope with # crippling power crisis. " # # The switch will remain in effect from June 16 to Sept 30 (2009) but if # implemented the next year, it will come in force from April 1, 2010 # From Steffen Thorsen (2009-06-02): # They have finally decided now, but changed the start date to midnight between # the 19th and 20th, and they have not set the end date yet. # # Some sources: # <a href="http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601"> # http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601 # </a> # <a href="http://bdnews24.com/details.php?id=85889&cid=2"> # http://bdnews24.com/details.php?id=85889&cid=2 # </a> # # Our wrap-up: # <a href="http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html"> # http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html # </a> # From A. N. M. Kamrus Saadat (2009-06-15): # Finally we've got the official mail regarding DST start time where DST start # time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh # Telecommunication Regulatory Commission). # # No DST end date has been announced yet. # From Alexander Krivenyshev (2009-09-25): # Bangladesh won't go back to Standard Time from October 1, 2009, # instead it will continue DST measure till the cabinet makes a fresh decision. # # Following report by same newspaper-"The Daily Star Friday": # "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1" # <a href="http://www.thedailystar.net/newDesign/news-details.php?nid=107021"> # http://www.thedailystar.net/newDesign/news-details.php?nid=107021 # </a> # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html"> # http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html # </a> # From Steffen Thorsen (2009-10-13): # IANS (Indo-Asian News Service) now reports: # Bangladesh has decided that the clock advanced by an hour to make # maximum use of daylight hours as an energy saving measure would # "continue for an indefinite period." # # One of many places where it is published: # <a href="http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html"> # http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html # </a> # From Alexander Krivenyshev (2009-12-24): # According to Bangladesh newspaper "The Daily Star," # Bangladesh will change its clock back to Standard Time on Dec 31, 2009. # # Clock goes back 1-hr on Dec 31 night. # <a href="http://www.thedailystar.net/newDesign/news-details.php?nid=119228"> # http://www.thedailystar.net/newDesign/news-details.php?nid=119228 # </a> # and # <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html"> # http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html # </a> # # "...The government yesterday decided to put the clock back by one hour # on December 31 midnight and the new time will continue until March 31, # 2010 midnight. The decision came at a cabinet meeting at the Prime # Minister's Office last night..." # From Alexander Krivenyshev (2010-03-22): # According to Bangladesh newspaper "The Daily Star," # Cabinet cancels Daylight Saving Time # <a href="http://www.thedailystar.net/newDesign/latest_news.php?nid=22817"> # http://www.thedailystar.net/newDesign/latest_news.php?nid=22817 # </a> # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html"> # http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html # </a> # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Dhaka 2009 only - Jun 19 23:00 1:00 S Rule Dhaka 2009 only - Dec 31 23:59 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dhaka 6:01:40 - LMT 1890 5:53:20 - HMT 1941 Oct # Howrah Mean Time? 6:30 - BURT 1942 May 15 # Burma Time 5:30 - IST 1942 Sep 6:30 - BURT 1951 Sep 30 6:00 - DACT 1971 Mar 26 # Dacca Time 6:00 - BDT 2009 6:00 Dhaka BD%sT # Bhutan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu 5:30 - IST 1987 Oct 6:00 - BTT # Bhutan Time # British Indian Ocean Territory # Whitman and the 1995 CIA time zone map say 5:00, but the # 1997 and later maps say 6:00. Assume the switch occurred in 1996. # We have no information as to when standard time was introduced; # assume it occurred in 1907, the same year as Mauritius (which # then contained the Chagos Archipelago). # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Chagos 4:49:40 - LMT 1907 5:00 - IOT 1996 # BIOT Time 6:00 - IOT # Brunei # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan 7:30 - BNT 1933 8:00 - BNT # Burma / Myanmar # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon 6:24:36 - RMT 1920 # Rangoon Mean Time? 6:30 - BURT 1942 May # Burma Time 9:00 - JST 1945 May 3 6:30 - MMT # Myanmar Time # Cambodia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT? 7:00 - ICT 1912 May 8:00 - ICT 1931 May 7:00 - ICT # China # From Guy Harris: # People's Republic of China. Yes, they really have only one time zone. # From Bob Devine (1988-01-28): # No they don't. See TIME mag, 1986-02-17 p.52. Even though # China is across 4 physical time zones, before Feb 1, 1986 only the # Peking (Bejing) time zone was recognized. Since that date, China # has two of 'em -- Peking's and Urumqi (named after the capital of # the Xinjiang Uyghur Autonomous Region). I don't know about DST for it. # # . . .I just deleted the DST table and this editor makes it too # painful to suck in another copy.. So, here is what I have for # DST start/end dates for Peking's time zone (info from AP): # # 1986 May 4 - Sept 14 # 1987 mid-April - ?? # From U. S. Naval Observatory (1989-01-19): # CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN # CHINA 9 H AHEAD OF UTC APR 17 - SEP 10 # From Paul Eggert (2006-03-22): # Shanks & Pottenger write that China (except for Hong Kong and Macau) # has had a single time zone since 1980 May 1, observing summer DST # from 1986 through 1991; this contradicts Devine's # note about Time magazine, though apparently _something_ happened in 1986. # Go with Shanks & Pottenger for now. I made up names for the other # pre-1980 time zones. # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Shang 1940 only - Jun 3 0:00 1:00 D Rule Shang 1940 1941 - Oct 1 0:00 0 S Rule Shang 1941 only - Mar 16 0:00 1:00 D Rule PRC 1986 only - May 4 0:00 1:00 D Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # From Anthony Fok (2001-12-20): # BTW, I did some research on-line and found some info regarding these five # historic timezones from some Taiwan websites. And yes, there are official # Chinese names for these locales (before 1949). # # From Jesper Norgaard Welen (2006-07-14): # I have investigated the timezones around 1970 on the # http://www.astro.com/atlas site [with provinces and county # boundaries summarized below].... A few other exceptions were two # counties on the Sichuan side of the Xizang-Sichuan border, # counties Dege and Baiyu which lies on the Sichuan side and are # therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege # county is GMT+8 according to astro.com while Baiyu county is GMT+6 # (could be true), for the moment I am assuming that those two # counties are mistakes in the astro.com data. # From Paul Eggert (2008-02-11): # I just now checked Google News for western news sources that talk # about China's single time zone, and couldn't find anything before 1986 # talking about China being in one time zone. (That article was: Jim # Mann, "A clumsy embrace for another western custom: China on daylight # time--sort of", Los Angeles Times, 1986-05-05. By the way, this # article confirms the tz database's data claiming that China began # observing daylight saving time in 1986. # # From Thomas S. Mullaney (2008-02-11): # I think you're combining two subjects that need to treated # separately: daylight savings (which, you're correct, wasn't # implemented until the 1980s) and the unified time zone centered near # Beijing (which was implemented in 1949). Briefly, there was also a # "Lhasa Time" in Tibet and "Urumqi Time" in Xinjiang. The first was # ceased, and the second eventually recognized (again, in the 1980s). # # From Paul Eggert (2008-06-30): # There seems to be a good chance China switched to a single time zone in 1949 # rather than in 1980 as Shanks & Pottenger have it, but we don't have a # reliable documentary source saying so yet, so for now we still go with # Shanks & Pottenger. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Changbai Time ("Long-white Time", Long-white = Heilongjiang area) # Heilongjiang (except Mohe county), Jilin Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin 8:30 - CHAT 1932 Mar # Changbai Time 8:00 - CST 1940 9:00 - CHAT 1966 May 8:30 - CHAT 1980 May 8:00 PRC C%sT # Zhongyuan Time ("Central plain Time") # most of China Zone Asia/Shanghai 8:05:52 - LMT 1928 8:00 Shang C%sT 1949 8:00 PRC C%sT # Long-shu Time (probably due to Long and Shu being two names of that area) # Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan; # most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong # counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing, # Yangchun, Yangjiang, Yu'nan, and Yunfu. Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking 7:00 - LONT 1980 May # Long-shu Time 8:00 PRC C%sT # Xin-zang Time ("Xinjiang-Tibet Time") # The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai; # the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang, # Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi; # east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi; # east Xinjiang, including Urumqi, Turpan, Karamay, Korla, Minfeng, Jinghe, # Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin, # Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami, # Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan. Zone Asia/Urumqi 5:50:20 - LMT 1928 # or Urumchi 6:00 - URUT 1980 May # Urumqi Time 8:00 PRC C%sT # Kunlun Time # West Tibet, including Pulan, Aheqi, Shufu, Shule; # West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke, # Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding, # and Yarkand. # From Luther Ma (2009-10-17): # Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in # Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time, # but have no need of it. All planes, trains, and schools function on # what is called "Beijing time." When Han make an appointment in Chinese # they implicitly use Beijing time. # # On the other hand, ethnic Uyghurs, who make up about half the # population of Xinjiang, typically use "Xinjiang time" which is two # hours behind Beijing time, or UTC +0600. The government of the Xinjiang # Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as # local governments such as the Urumqi city government use both times in # publications, referring to what is popularly called Xinjiang time as # "Urumqi time." When Uyghurs make an appointment in the Uyghur language # they almost invariably use Xinjiang time. # # (Their ethnic Han compatriots would typically have no clue of its # widespread use, however, because so extremely few of them are fluent in # Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.) # # (...As with the rest of China there was a brief interval ending in 1990 # or 1991 when summer time was in use. The confusion was severe, with # the province not having dual times but four times in use at the same # time. Some areas remained on standard Xinjiang time or Beijing time and # others moving their clocks ahead.) # # ...an example of an official website using of Urumqi time. # # The first few lines of the Google translation of # <a href="http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39"> # http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39 # </a> # (retrieved 2009-10-13) # > Urumqi fire seven people are missing the alleged losses of at least # > 500 million yuan # > # > (Reporter Dong Liu) the day before 20:20 or so (Urumqi Time 18:20), # > Urumqi City Department of International Plaza Luther Qiantang River # > burst fire. As of yesterday, 18:30, Urumqi City Fire officers and men # > have worked continuously for 22 hours... # From Luther Ma (2009-11-19): # With the risk of being redundant to previous answers these are the most common # English "transliterations" (w/o using non-English symbols): # # 1. Wulumuqi... # 2. Kashi... # 3. Urumqi... # 4. Kashgar... # ... # 5. It seems that Uyghurs in Urumqi has been using Xinjiang since at least the # 1960's. I know of one Han, now over 50, who grew up in the surrounding # countryside and used Xinjiang time as a child. # # 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any # start date for Xinjiang time. # # Without having access to local historical records, nor the ability to legally # publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur # Autonomous Region under the PRC. (Before that Uyghurs, of course, would also # not be using Beijing time, but some local time.) Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar 5:30 - KAST 1940 # Kashgar Time 5:00 - KAST 1980 May 8:00 PRC C%sT # From Lee Yiu Chung (2009-10-24): # I found there are some mistakes for the...DST rule for Hong # Kong. [According] to the DST record from Hong Kong Observatory (actually, # it is not [an] observatory, but the official meteorological agency of HK, # and also serves as the official timing agency), there are some missing # and incorrect rules. Although the exact switch over time is missing, I # think 3:30 is correct. The official DST record for Hong Kong can be # obtained from # <a href="http://www.hko.gov.hk/gts/time/Summertime.htm"> # http://www.hko.gov.hk/gts/time/Summertime.htm # </a>. # From Arthur David Olson (2009-10-28): # Here are the dates given at # <a href="http://www.hko.gov.hk/gts/time/Summertime.htm"> # http://www.hko.gov.hk/gts/time/Summertime.htm # </a> # as of 2009-10-28: # Year Period # 1941 1 Apr to 30 Sep # 1942 Whole year # 1943 Whole year # 1944 Whole year # 1945 Whole year # 1946 20 Apr to 1 Dec # 1947 13 Apr to 30 Dec # 1948 2 May to 31 Oct # 1949 3 Apr to 30 Oct # 1950 2 Apr to 29 Oct # 1951 1 Apr to 28 Oct # 1952 6 Apr to 25 Oct # 1953 5 Apr to 1 Nov # 1954 21 Mar to 31 Oct # 1955 20 Mar to 6 Nov # 1956 18 Mar to 4 Nov # 1957 24 Mar to 3 Nov # 1958 23 Mar to 2 Nov # 1959 22 Mar to 1 Nov # 1960 20 Mar to 6 Nov # 1961 19 Mar to 5 Nov # 1962 18 Mar to 4 Nov # 1963 24 Mar to 3 Nov # 1964 22 Mar to 1 Nov # 1965 18 Apr to 17 Oct # 1966 17 Apr to 16 Oct # 1967 16 Apr to 22 Oct # 1968 21 Apr to 20 Oct # 1969 20 Apr to 19 Oct # 1970 19 Apr to 18 Oct # 1971 18 Apr to 17 Oct # 1972 16 Apr to 22 Oct # 1973 22 Apr to 21 Oct # 1973/74 30 Dec 73 to 20 Oct 74 # 1975 20 Apr to 19 Oct # 1976 18 Apr to 17 Oct # 1977 Nil # 1978 Nil # 1979 13 May to 21 Oct # 1980 to Now Nil # The page does not give start or end times of day. # The page does not give a start date for 1942. # The page does not givw an end date for 1945. # The Japanese occupation of Hong Kong began on 1941-12-25. # The Japanese surrender of Hong Kong was signed 1945-09-15. # For lack of anything better, use start of those days as the transition times. # Hong Kong (Xianggang) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule HK 1941 only - Apr 1 3:30 1:00 S Rule HK 1941 only - Sep 30 3:30 0 - Rule HK 1946 only - Apr 20 3:30 1:00 S Rule HK 1946 only - Dec 1 3:30 0 - Rule HK 1947 only - Apr 13 3:30 1:00 S Rule HK 1947 only - Dec 30 3:30 0 - Rule HK 1948 only - May 2 3:30 1:00 S Rule HK 1948 1951 - Oct lastSun 3:30 0 - Rule HK 1952 only - Oct 25 3:30 0 - Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S Rule HK 1953 only - Nov 1 3:30 0 - Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S Rule HK 1954 only - Oct 31 3:30 0 - Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S Rule HK 1965 1976 - Oct Sun>=16 3:30 0 - Rule HK 1973 only - Dec 30 3:30 1:00 S Rule HK 1979 only - May Sun>=8 3:30 1:00 S Rule HK 1979 only - Oct Sun>=16 3:30 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30 8:00 HK HK%sT 1941 Dec 25 9:00 - JST 1945 Sep 15 8:00 HK HK%sT ############################################################################### # Taiwan # Shanks & Pottenger write that Taiwan observed DST during 1945, when it # was still controlled by Japan. This is hard to believe, but we don't # have any other information. # From smallufo (2010-04-03): # According to Taiwan's CWB, # <a href="http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm"> # http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm # </a> # Taipei has DST in 1979 between July 1st and Sep 30. # From Arthur David Olson (2010-04-07): # Here's Google's translation of the table at the bottom of the "summert.htm" page: # Decade Name Start and end date # Republic of China 34 years to 40 years (AD 1945-1951 years) Summer Time May 1 to September 30 # 41 years of the Republic of China (AD 1952) Daylight Saving Time March 1 to October 31 # Republic of China 42 years to 43 years (AD 1953-1954 years) Daylight Saving Time April 1 to October 31 # In the 44 years to 45 years (AD 1955-1956 years) Daylight Saving Time April 1 to September 30 # Republic of China 46 years to 48 years (AD 1957-1959) Summer Time April 1 to September 30 # Republic of China 49 years to 50 years (AD 1960-1961) Summer Time June 1 to September 30 # Republic of China 51 years to 62 years (AD 1962-1973 years) Stop Summer Time # Republic of China 63 years to 64 years (1974-1975 AD) Daylight Saving Time April 1 to September 30 # Republic of China 65 years to 67 years (1976-1978 AD) Stop Daylight Saving Time # Republic of China 68 years (AD 1979) Daylight Saving Time July 1 to September 30 # Republic of China since 69 years (AD 1980) Stop Daylight Saving Time # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Taiwan 1945 1951 - May 1 0:00 1:00 D Rule Taiwan 1945 1951 - Oct 1 0:00 0 S Rule Taiwan 1952 only - Mar 1 0:00 1:00 D Rule Taiwan 1952 1954 - Nov 1 0:00 0 S Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D Rule Taiwan 1955 1961 - Oct 1 0:00 0 S Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D Rule Taiwan 1974 1975 - Oct 1 0:00 0 S Rule Taiwan 1979 only - Jun 30 0:00 1:00 D Rule Taiwan 1979 only - Sep 30 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Taipei 8:06:00 - LMT 1896 # or Taibei or T'ai-pei 8:00 Taiwan C%sT # Macau (Macao, Aomen) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 - Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S Rule Macau 1965 only - Oct 31 0:00 0 - Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 - Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 - Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 - Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Macau 7:34:20 - LMT 1912 8:00 Macau MO%sT 1999 Dec 20 # return to China 8:00 PRC C%sT ############################################################################### # Cyprus # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Cyprus 1975 only - Apr 13 0:00 1:00 S Rule Cyprus 1975 only - Oct 12 0:00 0 - Rule Cyprus 1976 only - May 15 0:00 1:00 S Rule Cyprus 1976 only - Oct 11 0:00 0 - Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S Rule Cyprus 1977 only - Sep 25 0:00 0 - Rule Cyprus 1978 only - Oct 2 0:00 0 - Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 - Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14 2:00 Cyprus EE%sT 1998 Sep 2:00 EUAsia EE%sT # IATA SSIM (1998-09) has Cyprus using EU rules for the first time. # Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72. # However, for various reasons many users expect to find it under Europe. Link Asia/Nicosia Europe/Nicosia # Georgia # From Paul Eggert (1994-11-19): # Today's _Economist_ (p 60) reports that Georgia moved its clocks forward # an hour recently, due to a law proposed by Zurab Murvanidze, # an MP who went on a hunger strike for 11 days to force discussion about it! # We have no details, but we'll guess they didn't move the clocks back in fall. # # From Mathew Englander, quoting AP (1996-10-23 13:05-04): # Instead of putting back clocks at the end of October, Georgia # will stay on daylight savings time this winter to save energy, # President Eduard Shevardnadze decreed Wednesday. # # From the BBC via Joseph S. Myers (2004-06-27): # # Georgia moved closer to Western Europe on Sunday... The former Soviet # republic has changed its time zone back to that of Moscow. As a result it # is now just four hours ahead of Greenwich Mean Time, rather than five hours # ahead. The switch was decreed by the pro-Western president of Georgia, # Mikhail Saakashvili, who said the change was partly prompted by the process # of integration into Europe. # From Teimuraz Abashidze (2005-11-07): # Government of Georgia ... decided to NOT CHANGE daylight savings time on # [Oct.] 30, as it was done before during last more than 10 years. # Currently, we are in fact GMT +4:00, as before 30 October it was GMT # +3:00.... The problem is, there is NO FORMAL LAW or governmental document # about it. As far as I can find, I was told, that there is no document, # because we just DIDN'T ISSUE document about switching to winter time.... # I don't know what can be done, especially knowing that some years ago our # DST rules where changed THREE TIMES during one month. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tbilisi 2:59:16 - LMT 1880 2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time 3:00 - TBIT 1957 Mar # Tbilisi Time 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s 3:00 1:00 TBIST 1991 Apr 9 # independence 3:00 RussiaAsia GE%sT 1992 # Georgia Time 3:00 E-EurAsia GE%sT 1994 Sep lastSun 4:00 E-EurAsia GE%sT 1996 Oct lastSun 4:00 1:00 GEST 1997 Mar lastSun 4:00 E-EurAsia GE%sT 2004 Jun 27 3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00 4:00 - GET # East Timor # See Indonesia for the 1945 transition. # From Joao Carrascalao, brother of the former governor of East Timor, in # <a href="http://etan.org/et99c/december/26-31/30ETMAY.htm"> # East Timor may be late for its millennium # </a> (1999-12-26/31): # Portugal tried to change the time forward in 1974 because the sun # rises too early but the suggestion raised a lot of problems with the # Timorese and I still don't think it would work today because it # conflicts with their way of life. # From Paul Eggert (2000-12-04): # We don't have any record of the above attempt. # Most likely our records are incomplete, but we have no better data. # <a href="http://www.hri.org/news/world/undh/last/00-08-16.undh.html"> # From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General # (2000-08-16)</a>: # The Cabinet of the East Timor Transition Administration decided # today to advance East Timor's time by one hour. The time change, # which will be permanent, with no seasonal adjustment, will happen at # midnight on Saturday, September 16. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dili 8:22:20 - LMT 1912 8:00 - TLT 1942 Feb 21 23:00 # E Timor Time 9:00 - JST 1945 Sep 23 9:00 - TLT 1976 May 3 8:00 - CIT 2000 Sep 17 00:00 9:00 - TLT # India # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata 5:53:20 - HMT 1941 Oct # Howrah Mean Time? 6:30 - BURT 1942 May 15 # Burma Time 5:30 - IST 1942 Sep 5:30 1:00 IST 1945 Oct 15 5:30 - IST # The following are like Asia/Kolkata: # Andaman Is # Lakshadweep (Laccadive, Minicoy and Amindivi Is) # Nicobar Is # Indonesia # # From Gwillim Law (2001-05-28), overriding Shanks & Pottenger: # <http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime> # says that Indonesia's time zones changed on 1988-01-01. Looking at some # time zone maps, I think that must refer to Western Borneo (Kalimantan Barat # and Kalimantan Tengah) switching from UTC+8 to UTC+7. # # From Paul Eggert (2007-03-10): # Here is another correction to Shanks & Pottenger. # JohnTWB writes that Japanese forces did not surrender control in # Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and # other formal surrender ceremonies were September 9, 11, and 13, plus # September 12 for the regional surrender to Mountbatten in Singapore. # These would be the earliest possible times for a change. # Regimes horaires pour le monde entier, by Henri Le Corre, (Editions # Traditionnelles, 1987, Paris) says that Java and Madura switched # from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura # (Hollandia). For now, assume all Indonesian locations other than Jayapura # switched on 1945-09-23. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10 # Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13, # but this must be a typo. 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta 7:20 - JAVT 1932 Nov # Java Time 7:30 - WIT 1942 Mar 23 9:00 - JST 1945 Sep 23 7:30 - WIT 1948 May 8:00 - WIT 1950 May 7:30 - WIT 1964 7:00 - WIT Zone Asia/Pontianak 7:17:20 - LMT 1908 May 7:17:20 - PMT 1932 Nov # Pontianak MT 7:30 - WIT 1942 Jan 29 9:00 - JST 1945 Sep 23 7:30 - WIT 1948 May 8:00 - WIT 1950 May 7:30 - WIT 1964 8:00 - CIT 1988 Jan 1 7:00 - WIT Zone Asia/Makassar 7:57:36 - LMT 1920 7:57:36 - MMT 1932 Nov # Macassar MT 8:00 - CIT 1942 Feb 9 9:00 - JST 1945 Sep 23 8:00 - CIT Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov 9:00 - EIT 1944 Sep 1 9:30 - CST 1964 9:00 - EIT # Iran # From Roozbeh Pournader (2003-03-15): # This is an English translation of what I just found (originally in Persian). # The Gregorian dates in brackets are mine: # # Official Newspaper No. 13548-1370/6/25 [1991-09-16] # No. 16760/T233 H 1370/6/10 [1991-09-01] # # The Rule About Change of the Official Time of the Country # # The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14], # based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13] # of the Country's Organization for Official and Employment Affairs, # and referring to the law for equating the working hours of workers # and officers in the whole country dated 1359/4/23 [1980-07-14], and # for synchronizing the official times of the country, agreed that: # # The official time of the country will should move forward one hour # at the 24[:00] hours of the first day of Farvardin and should return # to its previous state at the 24[:00] hours of the 30th day of # Shahrivar. # # First Deputy to the President - Hassan Habibi # # From personal experience, that agrees with what has been followed # for at least the last 5 years. Before that, for a few years, the # date used was the first Thursday night of Farvardin and the last # Thursday night of Shahrivar, but I can't give exact dates.... # I have also changed the abbreviations to what is considered correct # here in Iran, IRST for regular time and IRDT for daylight saving time. # # From Roozbeh Pournader (2005-04-05): # The text of the Iranian law, in effect since 1925, clearly mentions # that the true solar year is the measure, and there is no arithmetic # leap year calculation involved. There has never been any serious # plan to change that law.... # # From Paul Eggert (2006-03-22): # Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter. # I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates, # stopping after 2037 when 32-bit time_t's overflow. # That cal-persia used Birashk's approximation, which disagrees with the solar # calendar predictions for the year 2025, so I corrected those dates by hand. # # From Oscar van Vlijmen (2005-03-30), writing about future # discrepancies between cal-persia and the Iranian calendar: # For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for # the vernal equinox and that gets so close to 12:00 some local # Iranian time that the definition of the correct location needs to be # known exactly, amongst other factors. 2157 is even closer: # 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give # no interpretation problem whatsoever. By the way, another instant # in the near future where there will be a discrepancy between # arithmetical and astronomical Iranian calendars will be in 2058: # vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of # Reingold's/Dershowitz' calculator gives correctly the Gregorian date # 2058-03-21 for 1 Farvardin 1437 (astronomical). # # From Steffen Thorsen (2006-03-22): # Several of my users have reported that Iran will not observe DST anymore: # http://www.irna.ir/en/news/view/line-17/0603193812164948.htm # # From Reuters (2007-09-16), with a heads-up from Jesper Norgaard Welen: # ... the Guardian Council ... approved a law on Sunday to re-introduce # daylight saving time ... # http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916 # # From Roozbeh Pournader (2007-11-05): # This is quoted from Official Gazette of the Islamic Republic of # Iran, Volume 63, Number 18242, dated Tuesday 1386/6/24 # [2007-10-16]. I am doing the best translation I can:... # The official time of the country will be moved forward for one hour # on the 24 hours of the first day of the month of Farvardin and will # be changed back to its previous state on the 24 hours of the # thirtieth day of Shahrivar. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Iran 1978 1980 - Mar 21 0:00 1:00 D Rule Iran 1978 only - Oct 21 0:00 0 S Rule Iran 1979 only - Sep 19 0:00 0 S Rule Iran 1980 only - Sep 23 0:00 0 S Rule Iran 1991 only - May 3 0:00 1:00 D Rule Iran 1992 1995 - Mar 22 0:00 1:00 D Rule Iran 1991 1995 - Sep 22 0:00 0 S Rule Iran 1996 only - Mar 21 0:00 1:00 D Rule Iran 1996 only - Sep 21 0:00 0 S Rule Iran 1997 1999 - Mar 22 0:00 1:00 D Rule Iran 1997 1999 - Sep 22 0:00 0 S Rule Iran 2000 only - Mar 21 0:00 1:00 D Rule Iran 2000 only - Sep 21 0:00 0 S Rule Iran 2001 2003 - Mar 22 0:00 1:00 D Rule Iran 2001 2003 - Sep 22 0:00 0 S Rule Iran 2004 only - Mar 21 0:00 1:00 D Rule Iran 2004 only - Sep 21 0:00 0 S Rule Iran 2005 only - Mar 22 0:00 1:00 D Rule Iran 2005 only - Sep 22 0:00 0 S Rule Iran 2008 only - Mar 21 0:00 1:00 D Rule Iran 2008 only - Sep 21 0:00 0 S Rule Iran 2009 2011 - Mar 22 0:00 1:00 D Rule Iran 2009 2011 - Sep 22 0:00 0 S Rule Iran 2012 only - Mar 21 0:00 1:00 D Rule Iran 2012 only - Sep 21 0:00 0 S Rule Iran 2013 2015 - Mar 22 0:00 1:00 D Rule Iran 2013 2015 - Sep 22 0:00 0 S Rule Iran 2016 only - Mar 21 0:00 1:00 D Rule Iran 2016 only - Sep 21 0:00 0 S Rule Iran 2017 2019 - Mar 22 0:00 1:00 D Rule Iran 2017 2019 - Sep 22 0:00 0 S Rule Iran 2020 only - Mar 21 0:00 1:00 D Rule Iran 2020 only - Sep 21 0:00 0 S Rule Iran 2021 2023 - Mar 22 0:00 1:00 D Rule Iran 2021 2023 - Sep 22 0:00 0 S Rule Iran 2024 only - Mar 21 0:00 1:00 D Rule Iran 2024 only - Sep 21 0:00 0 S Rule Iran 2025 2027 - Mar 22 0:00 1:00 D Rule Iran 2025 2027 - Sep 22 0:00 0 S Rule Iran 2028 2029 - Mar 21 0:00 1:00 D Rule Iran 2028 2029 - Sep 21 0:00 0 S Rule Iran 2030 2031 - Mar 22 0:00 1:00 D Rule Iran 2030 2031 - Sep 22 0:00 0 S Rule Iran 2032 2033 - Mar 21 0:00 1:00 D Rule Iran 2032 2033 - Sep 21 0:00 0 S Rule Iran 2034 2035 - Mar 22 0:00 1:00 D Rule Iran 2034 2035 - Sep 22 0:00 0 S Rule Iran 2036 2037 - Mar 21 0:00 1:00 D Rule Iran 2036 2037 - Sep 21 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tehran 3:25:44 - LMT 1916 3:25:44 - TMT 1946 # Tehran Mean Time 3:30 - IRST 1977 Nov 4:00 Iran IR%sT 1979 3:30 Iran IR%sT # Iraq # # From Jonathan Lennox (2000-06-12): # An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in # the U.S. edition) on the Iraqi Kurds contains a paragraph: # "The three northern provinces ... switched their clocks this spring and # are an hour ahead of Baghdad." # # But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows: # In the past, some Kurdish nationalists, as a protest to the Iraqi # Government, did not adhere to daylight saving time. They referred # to daylight saving as Saddam time. But, as of today, the time zone # in Iraqi-Kurdistan is on standard time with Baghdad, Iraq. # # So we'll ignore the Economist's claim. # From Steffen Thorsen (2008-03-10): # The cabinet in Iraq abolished DST last week, according to the following # news sources (in Arabic): # <a href="http://www.aljeeran.net/wesima_articles/news-20080305-98602.html"> # http://www.aljeeran.net/wesima_articles/news-20080305-98602.html # </a> # <a href="http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10"> # http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10 # </a> # # We have published a short article in English about the change: # <a href="http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html"> # http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html # </a> # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Iraq 1982 only - May 1 0:00 1:00 D Rule Iraq 1982 1984 - Oct 1 0:00 0 S Rule Iraq 1983 only - Mar 31 0:00 1:00 D Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D # IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo. # Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this. # Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D Rule Iraq 1991 2007 - Oct 1 3:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baghdad 2:57:40 - LMT 1890 2:57:36 - BMT 1918 # Baghdad Mean Time? 3:00 - AST 1982 May 3:00 Iraq A%sT ############################################################################### # Israel # From Ephraim Silverberg (2001-01-11): # # I coined "IST/IDT" circa 1988. Until then there were three # different abbreviations in use: # # JST Jerusalem Standard Time [Danny Braniss, Hebrew University] # IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion] # EEST Eastern Europe Standard Time [used by almost everyone else] # # Since timezones should be called by country and not capital cities, # I ruled out JST. As Israel is in Asia Minor and not Eastern Europe, # EEST was equally unacceptable. Since "zonal" was not compatible with # any other timezone abbreviation, I felt that 'IST' was the way to go # and, indeed, it has received almost universal acceptance in timezone # settings in Israeli computers. # # In any case, I am happy to share timezone abbreviations with India, # high on my favorite-country list (and not only because my wife's # family is from India). # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1940 only - Jun 1 0:00 1:00 D Rule Zion 1942 1944 - Nov 1 0:00 0 S Rule Zion 1943 only - Apr 1 2:00 1:00 D Rule Zion 1944 only - Apr 1 0:00 1:00 D Rule Zion 1945 only - Apr 16 0:00 1:00 D Rule Zion 1945 only - Nov 1 2:00 0 S Rule Zion 1946 only - Apr 16 2:00 1:00 D Rule Zion 1946 only - Nov 1 0:00 0 S Rule Zion 1948 only - May 23 0:00 2:00 DD Rule Zion 1948 only - Sep 1 0:00 1:00 D Rule Zion 1948 1949 - Nov 1 2:00 0 S Rule Zion 1949 only - May 1 0:00 1:00 D Rule Zion 1950 only - Apr 16 0:00 1:00 D Rule Zion 1950 only - Sep 15 3:00 0 S Rule Zion 1951 only - Apr 1 0:00 1:00 D Rule Zion 1951 only - Nov 11 3:00 0 S Rule Zion 1952 only - Apr 20 2:00 1:00 D Rule Zion 1952 only - Oct 19 3:00 0 S Rule Zion 1953 only - Apr 12 2:00 1:00 D Rule Zion 1953 only - Sep 13 3:00 0 S Rule Zion 1954 only - Jun 13 0:00 1:00 D Rule Zion 1954 only - Sep 12 0:00 0 S Rule Zion 1955 only - Jun 11 2:00 1:00 D Rule Zion 1955 only - Sep 11 0:00 0 S Rule Zion 1956 only - Jun 3 0:00 1:00 D Rule Zion 1956 only - Sep 30 3:00 0 S Rule Zion 1957 only - Apr 29 2:00 1:00 D Rule Zion 1957 only - Sep 22 0:00 0 S Rule Zion 1974 only - Jul 7 0:00 1:00 D Rule Zion 1974 only - Oct 13 0:00 0 S Rule Zion 1975 only - Apr 20 0:00 1:00 D Rule Zion 1975 only - Aug 31 0:00 0 S Rule Zion 1985 only - Apr 14 0:00 1:00 D Rule Zion 1985 only - Sep 15 0:00 0 S Rule Zion 1986 only - May 18 0:00 1:00 D Rule Zion 1986 only - Sep 7 0:00 0 S Rule Zion 1987 only - Apr 15 0:00 1:00 D Rule Zion 1987 only - Sep 13 0:00 0 S Rule Zion 1988 only - Apr 9 0:00 1:00 D Rule Zion 1988 only - Sep 3 0:00 0 S # From Ephraim Silverberg # (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22, # and 2005-02-17): # According to the Office of the Secretary General of the Ministry of # Interior, there is NO set rule for Daylight-Savings/Standard time changes. # One thing is entrenched in law, however: that there must be at least 150 # days of daylight savings time annually. From 1993-1998, the change to # daylight savings time was on a Friday morning from midnight IST to # 1 a.m IDT; up until 1998, the change back to standard time was on a # Saturday night from midnight daylight savings time to 11 p.m. standard # time. 1996 is an exception to this rule where the change back to standard # time took place on Sunday night instead of Saturday night to avoid # conflicts with the Jewish New Year. In 1999, the change to # daylight savings time was still on a Friday morning but from # 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time # was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for # 1999 only. In the year 2000, the change to daylight savings time was # similar to 1999, but although the change back will be on a Friday, it # will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all # changes to/from will take place at 1 a.m. old time, but now there is no # rule as to what day of the week it will take place in as the start date # (except in 2003) is the night after the Passover Seder (i.e. the eve # of the 16th of Nisan in the lunar Hebrew calendar) and the end date # (except in 2002) is three nights before Yom Kippur [Day of Atonement] # (the eve of the 7th of Tishrei in the lunar Hebrew calendar). # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1989 only - Apr 30 0:00 1:00 D Rule Zion 1989 only - Sep 3 0:00 0 S Rule Zion 1990 only - Mar 25 0:00 1:00 D Rule Zion 1990 only - Aug 26 0:00 0 S Rule Zion 1991 only - Mar 24 0:00 1:00 D Rule Zion 1991 only - Sep 1 0:00 0 S Rule Zion 1992 only - Mar 29 0:00 1:00 D Rule Zion 1992 only - Sep 6 0:00 0 S Rule Zion 1993 only - Apr 2 0:00 1:00 D Rule Zion 1993 only - Sep 5 0:00 0 S # The dates for 1994-1995 were obtained from Office of the Spokeswoman for the # Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by # calling the office directly at 972-2-6701447 or 972-2-6701448. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1994 only - Apr 1 0:00 1:00 D Rule Zion 1994 only - Aug 28 0:00 0 S Rule Zion 1995 only - Mar 31 0:00 1:00 D Rule Zion 1995 only - Sep 3 0:00 0 S # The dates for 1996 were determined by the Minister of Interior of the # time, Haim Ramon. The official announcement regarding 1996-1998 # (with the dates for 1997-1998 no longer being relevant) can be viewed at: # # ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz # # The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa. # # The official announcements for the years 1997-1999 can be viewed at: # # ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz # # where YYYY is the relevant year. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1996 only - Mar 15 0:00 1:00 D Rule Zion 1996 only - Sep 16 0:00 0 S Rule Zion 1997 only - Mar 21 0:00 1:00 D Rule Zion 1997 only - Sep 14 0:00 0 S Rule Zion 1998 only - Mar 20 0:00 1:00 D Rule Zion 1998 only - Sep 6 0:00 0 S Rule Zion 1999 only - Apr 2 2:00 1:00 D Rule Zion 1999 only - Sep 3 2:00 0 S # The Knesset Interior Committee has changed the dates for 2000 for # the third time in just over a year and have set new dates for the # years 2001-2004 as well. # # The official announcement for the start date of 2000 can be viewed at: # # ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz # # The official announcement for the end date of 2000 and the dates # for the years 2001-2004 can be viewed at: # # ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 2000 only - Apr 14 2:00 1:00 D Rule Zion 2000 only - Oct 6 1:00 0 S Rule Zion 2001 only - Apr 9 1:00 1:00 D Rule Zion 2001 only - Sep 24 1:00 0 S Rule Zion 2002 only - Mar 29 1:00 1:00 D Rule Zion 2002 only - Oct 7 1:00 0 S Rule Zion 2003 only - Mar 28 1:00 1:00 D Rule Zion 2003 only - Oct 3 1:00 0 S Rule Zion 2004 only - Apr 7 1:00 1:00 D Rule Zion 2004 only - Sep 22 1:00 0 S # The proposed law agreed upon by the Knesset Interior Committee on # 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the # last Friday before April 2nd (i.e. the last Friday in March or April # 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday # night _before_ the fast of Yom Kippur. # # Those who can read Hebrew can view the announcement at: # # ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps # From Paul Eggert (2012-10-26): # I used Ephraim Silverberg's dst-israel.el program # <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20) # along with Ed Reingold's cal-hebrew in GNU Emacs 21.4, # to generate the transitions from 2005 through 2012. # (I replaced "lastFri" with "Fri>=26" by hand.) # The spring transitions all correspond to the following Rule: # # Rule Zion 2005 2012 - Mar Fri>=26 2:00 1:00 D # # but older zic implementations (e.g., Solaris 8) do not support # "Fri>=26" to mean April 1 in years like 2005, so for now we list the # springtime transitions explicitly. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 2005 only - Apr 1 2:00 1:00 D Rule Zion 2005 only - Oct 9 2:00 0 S Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D Rule Zion 2006 only - Oct 1 2:00 0 S Rule Zion 2007 only - Sep 16 2:00 0 S Rule Zion 2008 only - Oct 5 2:00 0 S Rule Zion 2009 only - Sep 27 2:00 0 S Rule Zion 2010 only - Sep 12 2:00 0 S Rule Zion 2011 only - Apr 1 2:00 1:00 D Rule Zion 2011 only - Oct 2 2:00 0 S Rule Zion 2012 only - Mar Fri>=26 2:00 1:00 D Rule Zion 2012 only - Sep 23 2:00 0 S # From Ephraim Silverberg (2012-10-18): # Yesterday, the Interior Ministry Committee, after more than a year # past, approved sending the proposed June 2011 changes to the Time # Decree Law back to the Knesset for second and third (final) votes # before the upcoming elections on Jan. 22, 2013. Hence, although the # changes are not yet law, they are expected to be so before February 2013. # # As of 2013, DST starts at 02:00 on the Friday before the last Sunday in March. # DST ends at 02:00 on the first Sunday after October 1, unless it occurs on the # second day of the Jewish Rosh Hashana holiday, in which case DST ends a day # later (i.e. at 02:00 the first Monday after October 2). # [Rosh Hashana holidays are factored in until 2100.] # From Ephraim Silverberg (2012-11-05): # The Knesset passed today (in second and final readings) the amendment to the # Time Decree Law making the changes ... law. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D Rule Zion 2013 2026 - Oct Sun>=2 2:00 0 S Rule Zion 2027 only - Oct Mon>=3 2:00 0 S Rule Zion 2028 max - Oct Sun>=2 2:00 0 S # The following rules are commented out for now, as they break older # versions of zic that support only signed 32-bit timestamps, i.e., # through 2038-01-19 03:14:07 UTC. #Rule Zion 2028 2053 - Oct Sun>=2 2:00 0 S #Rule Zion 2054 only - Oct Mon>=3 2:00 0 S #Rule Zion 2055 2080 - Oct Sun>=2 2:00 0 S #Rule Zion 2081 only - Oct Mon>=3 2:00 0 S #Rule Zion 2082 max - Oct Sun>=2 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Jerusalem 2:20:56 - LMT 1880 2:20:40 - JMT 1918 # Jerusalem Mean Time? 2:00 Zion I%sT ############################################################################### # Japan # `9:00' and `JST' is from Guy Harris. # From Paul Eggert (1995-03-06): # Today's _Asahi Evening News_ (page 4) reports that Japan had # daylight saving between 1948 and 1951, but ``the system was discontinued # because the public believed it would lead to longer working hours.'' # From Mayumi Negishi in the 2005-08-10 Japan Times # <http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm>: # Occupation authorities imposed daylight-saving time on Japan on # [1948-05-01].... But lack of prior debate and the execution of # daylight-saving time just three days after the bill was passed generated # deep hatred of the concept.... The Diet unceremoniously passed a bill to # dump the unpopular system in October 1951, less than a month after the San # Francisco Peace Treaty was signed. (A government poll in 1951 showed 53% # of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who # wanted to keep it.) # From Paul Eggert (2006-03-22): # Shanks & Pottenger write that DST in Japan during those years was as follows: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Japan 1948 only - May Sun>=1 2:00 1:00 D Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D # but the only locations using it (for birth certificates, presumably, since # their audience is astrologers) were US military bases. For now, assume # that for most purposes daylight-saving time was observed; otherwise, what # would have been the point of the 1951 poll? # From Hideyuki Suzuki (1998-11-09): # 'Tokyo' usually stands for the former location of Tokyo Astronomical # Observatory: E 139 44' 40".90 (9h 18m 58s.727), N 35 39' 16".0. # This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996' # edited by National Astronomical Observatory of Japan.... # JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST). # The law is enacted on 1886-07-07. # From Hideyuki Suzuki (1998-11-16): # The ordinance No. 51 (1886) established "standard time" in Japan, # which stands for the time on E 135 degree. # In the ordinance No. 167 (1895), "standard time" was renamed to "central # standard time". And the same ordinance also established "western standard # time", which stands for the time on E 120 degree.... But "western standard # time" was abolished in the ordinance No. 529 (1937). In the ordinance No. # 167, there is no mention regarding for what place western standard time is # standard.... # # I wrote "ordinance" above, but I don't know how to translate. # In Japanese it's "chokurei", which means ordinance from emperor. # Shanks & Pottenger claim JST in use since 1896, and that a few # places (e.g. Ishigaki) use +0800; go with Suzuki. Guess that all # ordinances took effect on Jan 1. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u 9:00 - JST 1896 9:00 - CJT 1938 9:00 Japan J%sT # Since 1938, all Japanese possessions have been like Asia/Tokyo. # Jordan # # From <a href="http://star.arabia.com/990701/JO9.html"> # Jordan Week (1999-07-01) </a> via Steffen Thorsen (1999-09-09): # Clocks in Jordan were forwarded one hour on Wednesday at midnight, # in accordance with the government's decision to implement summer time # all year round. # # From <a href="http://star.arabia.com/990930/JO9.html"> # Jordan Week (1999-09-30) </a> via Steffen Thorsen (1999-11-09): # Winter time starts today Thursday, 30 September. Clocks will be turned back # by one hour. This is the latest government decision and it's final! # The decision was taken because of the increase in working hours in # government's departments from six to seven hours. # # From Paul Eggert (2005-11-22): # Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com. # # From Steffen Thorsen (2005-11-23): # For Jordan I have received multiple independent user reports every year # about DST end dates, as the end-rule is different every year. # # From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi: # http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm # "Jordan will switch to winter time on Friday, October 27". # # From Phil Pizzey (2009-04-02): # ...I think I may have spotted an error in the timezone data for # Jordan. # The current (2009d) asia file shows Jordan going to daylight # saving # time on the last Thursday in March. # # Rule Jordan 2000 max - Mar lastThu 0:00s 1:00 S # # However timeanddate.com, which I usually find reliable, shows Jordan # going to daylight saving time on the last Friday in March since 2002. # Please see # <a href="http://www.timeanddate.com/worldclock/timezone.html?n=11"> # http://www.timeanddate.com/worldclock/timezone.html?n=11 # </a> # From Steffen Thorsen (2009-04-02): # This single one might be good enough, (2009-03-24, Arabic): # <a href="http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279"> # http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279 # </a> # # Google's translation: # # > The Council of Ministers decided in 2002 to adopt the principle of timely # > submission of the summer at 60 minutes as of midnight on the last Thursday # > of the month of March of each year. # # So - this means the midnight between Thursday and Friday since 2002. # From Arthur David Olson (2009-04-06): # We still have Jordan switching to DST on Thursdays in 2000 and 2001. # From Steffen Thorsen (2012-10-25): # Yesterday the government in Jordan announced that they will not # switch back to standard time this winter, so the will stay on DST # until about the same time next year (at least). # http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950 # # From Paul Eggert (2012-10-25): # For now, assume this is just a one-year measure. If it becomes # permanent, we should move Jordan from EET to AST effective tomorrow. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Jordan 1973 only - Jun 6 0:00 1:00 S Rule Jordan 1973 1975 - Oct 1 0:00 0 - Rule Jordan 1974 1977 - May 1 0:00 1:00 S Rule Jordan 1976 only - Nov 1 0:00 0 - Rule Jordan 1977 only - Oct 1 0:00 0 - Rule Jordan 1978 only - Apr 30 0:00 1:00 S Rule Jordan 1978 only - Sep 30 0:00 0 - Rule Jordan 1985 only - Apr 1 0:00 1:00 S Rule Jordan 1985 only - Oct 1 0:00 0 - Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 - Rule Jordan 1989 only - May 8 0:00 1:00 S Rule Jordan 1990 only - Apr 27 0:00 1:00 S Rule Jordan 1991 only - Apr 17 0:00 1:00 S Rule Jordan 1991 only - Sep 27 0:00 0 - Rule Jordan 1992 only - Apr 10 0:00 1:00 S Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 - Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S Rule Jordan 1994 only - Sep Fri>=15 0:00 0 - Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 - Rule Jordan 1999 only - Jul 1 0:00s 1:00 S Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 - Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S Rule Jordan 2002 max - Mar lastThu 24:00 1:00 S Rule Jordan 2003 only - Oct 24 0:00s 0 - Rule Jordan 2004 only - Oct 15 0:00s 0 - Rule Jordan 2005 only - Sep lastFri 0:00s 0 - Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 - Rule Jordan 2013 max - Oct lastFri 0:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Amman 2:23:44 - LMT 1931 2:00 Jordan EE%sT # Kazakhstan # From Paul Eggert (1996-11-22): # Andrew Evtichov (1996-04-13) writes that Kazakhstan # stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk) # and Aqtau (formerly Shevchenko) are the largest cities in their zones. # Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time # IATA SSIM mentions a third time zone in Kazakhstan. # From Paul Eggert (2006-03-22): # German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses # RussiaAsia rules, instead of switching at 00:00 as the IATA has it. # Go with Shanks & Pottenger, who have them always using RussiaAsia rules. # Also go with the following claims of Shanks & Pottenger: # # - Kazakhstan did not observe DST in 1991. # - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00. # - Oral switched from +5:00 to +4:00 in spring 1989. # <a href="http://www.kazsociety.org.uk/news/2005/03/30.htm"> # From Kazakhstan Embassy's News Bulletin #11 (2005-03-21): # </a> # The Government of Kazakhstan passed a resolution March 15 abolishing # daylight saving time citing lack of economic benefits and health # complications coupled with a decrease in productivity. # # From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28): # ... what happened was that the former Kazakhstan Eastern time zone # was "blended" with the Central zone. Therefore, Kazakhstan now has # two time zones, and difference between them is one hour. The zone # closer to UTC is the former Western zone (probably still called the # same), encompassing four provinces in the west: Aqtobe, Atyrau, # Mangghystau, and West Kazakhstan. The other zone encompasses # everything else.... I guess that would make Kazakhstan time zones # de jure UTC+5 and UTC+6 respectively. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Almaty (formerly Alma-Ata), representing most locations in Kazakhstan Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata 5:00 - ALMT 1930 Jun 21 # Alma-Ata Time 6:00 RussiaAsia ALM%sT 1991 6:00 - ALMT 1992 6:00 RussiaAsia ALM%sT 2005 Mar 15 6:00 - ALMT # Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2 4:00 - KIZT 1930 Jun 21 # Kizilorda Time 5:00 - KIZT 1981 Apr 1 5:00 1:00 KIZST 1981 Oct 1 6:00 - KIZT 1982 Apr 1 5:00 RussiaAsia KIZ%sT 1991 5:00 - KIZT 1991 Dec 16 # independence 5:00 - QYZT 1992 Jan 19 2:00 6:00 RussiaAsia QYZ%sT 2005 Mar 15 6:00 - QYZT # Aqtobe (aka Aktobe, formerly Akt'ubinsk) Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2 4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time 5:00 - AKTT 1981 Apr 1 5:00 1:00 AKTST 1981 Oct 1 6:00 - AKTT 1982 Apr 1 5:00 RussiaAsia AKT%sT 1991 5:00 - AKTT 1991 Dec 16 # independence 5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time 5:00 - AQTT # Mangghystau # Aqtau was not founded until 1963, but it represents an inhabited region, # so include time stamps before 1963. Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 4:00 - FORT 1930 Jun 21 # Fort Shevchenko T 5:00 - FORT 1963 5:00 - SHET 1981 Oct 1 # Shevchenko Time 6:00 - SHET 1982 Apr 1 5:00 RussiaAsia SHE%sT 1991 5:00 - SHET 1991 Dec 16 # independence 5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time 4:00 RussiaAsia AQT%sT 2005 Mar 15 5:00 - AQTT # West Kazakhstan Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk 4:00 - URAT 1930 Jun 21 # Ural'sk time 5:00 - URAT 1981 Apr 1 5:00 1:00 URAST 1981 Oct 1 6:00 - URAT 1982 Apr 1 5:00 RussiaAsia URA%sT 1989 Mar 26 2:00 4:00 RussiaAsia URA%sT 1991 4:00 - URAT 1991 Dec 16 # independence 4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time 5:00 - ORAT # Kyrgyzstan (Kirgizstan) # Transitions through 1991 are from Shanks & Pottenger. # From Paul Eggert (2005-08-15): # According to an article dated today in the Kyrgyzstan Development Gateway # <http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml> # Kyrgyzstan is canceling the daylight saving time system. I take the article # to mean that they will leave their clocks at 6 hours ahead of UTC. # From Malik Abdugaliev (2005-09-21): # Our government cancels daylight saving time 6th of August 2005. # From 2005-08-12 our GMT-offset is +6, w/o any daylight saving. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 - Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 5:00 - FRUT 1930 Jun 21 # Frunze Time 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence 5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time 6:00 - KGT ############################################################################### # Korea (North and South) # From Annie I. Bang (2006-07-10) in # <http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp>: # The Ministry of Commerce, Industry and Energy has already # commissioned a research project [to reintroduce DST] and has said # the system may begin as early as 2008.... Korea ran a daylight # saving program from 1949-61 but stopped it during the 1950-53 Korean War. # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule ROK 1960 only - May 15 0:00 1:00 D Rule ROK 1960 only - Sep 13 0:00 0 S Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Seoul 8:27:52 - LMT 1890 8:30 - KST 1904 Dec 9:00 - KST 1928 8:30 - KST 1932 9:00 - KST 1954 Mar 21 8:00 ROK K%sT 1961 Aug 10 8:30 - KST 1968 Oct 9:00 ROK K%sT Zone Asia/Pyongyang 8:23:00 - LMT 1890 8:30 - KST 1904 Dec 9:00 - KST 1928 8:30 - KST 1932 9:00 - KST 1954 Mar 21 8:00 - KST 1961 Aug 10 9:00 - KST ############################################################################### # Kuwait # Zone NAME GMTOFF RULES FORMAT [UNTIL] # From the Arab Times (2007-03-14): # The Civil Service Commission (CSC) has approved a proposal forwarded # by MP Ahmad Baqer on implementing the daylight saving time (DST) in # Kuwait starting from April until the end of Sept this year, reports Al-Anba. # <http://www.arabtimesonline.com/arabtimes/kuwait/Viewdet.asp?ID=9950>. # From Paul Eggert (2007-03-29): # We don't know the details, or whether the approval means it'll happen, # so for now we assume no DST. Zone Asia/Kuwait 3:11:56 - LMT 1950 3:00 - AST # Laos # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT? 7:00 - ICT 1912 May 8:00 - ICT 1931 May 7:00 - ICT # Lebanon # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Lebanon 1920 only - Mar 28 0:00 1:00 S Rule Lebanon 1920 only - Oct 25 0:00 0 - Rule Lebanon 1921 only - Apr 3 0:00 1:00 S Rule Lebanon 1921 only - Oct 3 0:00 0 - Rule Lebanon 1922 only - Mar 26 0:00 1:00 S Rule Lebanon 1922 only - Oct 8 0:00 0 - Rule Lebanon 1923 only - Apr 22 0:00 1:00 S Rule Lebanon 1923 only - Sep 16 0:00 0 - Rule Lebanon 1957 1961 - May 1 0:00 1:00 S Rule Lebanon 1957 1961 - Oct 1 0:00 0 - Rule Lebanon 1972 only - Jun 22 0:00 1:00 S Rule Lebanon 1972 1977 - Oct 1 0:00 0 - Rule Lebanon 1973 1977 - May 1 0:00 1:00 S Rule Lebanon 1978 only - Apr 30 0:00 1:00 S Rule Lebanon 1978 only - Sep 30 0:00 0 - Rule Lebanon 1984 1987 - May 1 0:00 1:00 S Rule Lebanon 1984 1991 - Oct 16 0:00 0 - Rule Lebanon 1988 only - Jun 1 0:00 1:00 S Rule Lebanon 1989 only - May 10 0:00 1:00 S Rule Lebanon 1990 1992 - May 1 0:00 1:00 S Rule Lebanon 1992 only - Oct 4 0:00 0 - Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 - Rule Lebanon 1999 max - Oct lastSun 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Beirut 2:22:00 - LMT 1880 2:00 Lebanon EE%sT # Malaysia # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer Rule NBorneo 1935 1941 - Dec 14 0:00 0 - # # peninsular Malaysia # The data here are taken from Mok Ly Yng (2003-10-30) # <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 7:00 - MALT 1933 Jan 1 # Malaya Time 7:00 0:20 MALST 1936 Jan 1 7:20 - MALT 1941 Sep 1 7:30 - MALT 1942 Feb 16 9:00 - JST 1945 Sep 12 7:30 - MALT 1982 Jan 1 8:00 - MYT # Malaysia Time # Sabah & Sarawak # From Paul Eggert (2006-03-22): # The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982 # transition dates are from Mok Ly Yng. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Kuching 7:21:20 - LMT 1926 Mar 7:30 - BORT 1933 # Borneo Time 8:00 NBorneo BOR%sT 1942 Feb 16 9:00 - JST 1945 Sep 12 8:00 - BORT 1982 Jan 1 8:00 - MYT # Maldives # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Maldives 4:54:00 - LMT 1880 # Male 4:54:00 - MMT 1960 # Male Mean Time 5:00 - MVT # Maldives Time # Mongolia # Shanks & Pottenger say that Mongolia has three time zones, but # usno1995 and the CIA map Standard Time Zones of the World (2005-03) # both say that it has just one. # From Oscar van Vlijmen (1999-12-11): # <a href="http://www.mongoliatourism.gov.mn/general.htm"> # General Information Mongolia # </a> (1999-09) # "Time: Mongolia has two time zones. Three westernmost provinces of # Bayan-Ulgii, Uvs, and Hovd are one hour earlier than the capital city, and # the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus # eight hours." # From Rives McDow (1999-12-13): # Mongolia discontinued the use of daylight savings time in 1999; 1998 # being the last year it was implemented. The dates of implementation I am # unsure of, but most probably it was similar to Russia, except for the time # of implementation may have been different.... # Some maps in the past have indicated that there was an additional time # zone in the eastern part of Mongolia, including the provinces of Dornod, # Suhbaatar, and possibly Khentij. # From Paul Eggert (1999-12-15): # Naming and spelling is tricky in Mongolia. # We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone; # the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us, # and sometimes Jirgalanta (with variant spellings), but the name Hovd # is good enough for our purposes. # From Rives McDow (2001-05-13): # In addition to Mongolia starting daylight savings as reported earlier # (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28), # there are three time zones. # # Provinces [at 7:00]: Bayan-ulgii, Uvs, Khovd, Zavkhan, Govi-Altai # Provinces [at 8:00]: Khovsgol, Bulgan, Arkhangai, Khentii, Tov, # Bayankhongor, Ovorkhangai, Dundgovi, Dornogovi, Omnogovi # Provinces [at 9:00]: Dornod, Sukhbaatar # # [The province of Selenge is omitted from the above lists.] # From Ganbold Ts., Ulaanbaatar (2004-04-17): # Daylight saving occurs at 02:00 local time last Saturday of March. # It will change back to normal at 02:00 local time last Saturday of # September.... As I remember this rule was changed in 2001. # # From Paul Eggert (2004-04-17): # For now, assume Rives McDow's informant got confused about Friday vs # Saturday, and that his 2001 dates should have 1 added to them. # From Paul Eggert (2005-07-26): # We have wildly conflicting information about Mongolia's time zones. # Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says # there is only one time zone and that DST is observed, citing Microsoft # Windows XP as the source. Risto Nykanen (2005-05-16) reports that # travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST. # Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in # Washington, DC says there are two time zones, with DST observed. # He also found # <http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&> # which also says that there is DST, and which has a comment by "Toddius" # (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones. # The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT # and some Eastern provinces are +9 GMT but Sukhbaatar Aimag is SUHK +8.5 GMT. # The SUKH timezone is new this year, it is one of the few things the # parliament passed during the tumultuous winter session." # For now, let's ignore this information, until we have more confirmation. # From Ganbold Ts. (2007-02-26): # Parliament of Mongolia has just changed the daylight-saving rule in February. # They decided not to adopt daylight-saving time.... # http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742 # From Deborah Goldsmith (2008-03-30): # We received a bug report claiming that the tz database UTC offset for # Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT # +08:00 instead. Different sources appear to disagree with the tz # database on this, e.g.: # # <a href="http://www.timeanddate.com/worldclock/city.html?n=1026"> # http://www.timeanddate.com/worldclock/city.html?n=1026 # </a> # <a href="http://www.worldtimeserver.com/current_time_in_MN.aspx"> # http://www.worldtimeserver.com/current_time_in_MN.aspx # </a> # # both say GMT+08:00. # From Steffen Thorsen (2008-03-31): # eznis airways, which operates several domestic flights, has a flight # schedule here: # <a href="http://www.eznis.com/Container.jsp?id=112"> # http://www.eznis.com/Container.jsp?id=112 # </a> # (click the English flag for English) # # There it appears that flights between Choibalsan and Ulaanbatar arrive # about 1:35 - 1:50 hours later in local clock time, no matter the # direction, while Ulaanbaatar-Khvod takes 2 hours in the Eastern # direction and 3:35 back, which indicates that Ulaanbatar and Khvod are # in different time zones (like we know about), while Choibalsan and # Ulaanbatar are in the same time zone (correction needed). # From Arthur David Olson (2008-05-19): # Assume that Choibalsan is indeed offset by 8:00. # XXX--in the absence of better information, assume that transition # was at the start of 2008-03-31 (the day of Steffen Thorsen's report); # this is almost surely wrong. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S Rule Mongol 1983 only - Oct 1 0:00 0 - # Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00, # but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM # (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998. # # Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches # in Choibalsan (more precisely, in Dornod and Sukhbaatar) took place # at 02:00 standard time, not at 00:00 local time as in the rest of # the country. That would be odd, and possibly is a result of their # correction of 02:00 (in the previous edition) not being done correctly # in the latest edition; so ignore it for now. Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S Rule Mongol 1984 1998 - Sep lastSun 0:00 0 - # IATA SSIM (1999-09) says Mongolia no longer observes DST. Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S Rule Mongol 2001 2006 - Sep lastSat 2:00 0 - Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta Zone Asia/Hovd 6:06:36 - LMT 1905 Aug 6:00 - HOVT 1978 # Hovd Time 7:00 Mongol HOV%sT # Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug 7:00 - ULAT 1978 # Ulaanbaatar Time 8:00 Mongol ULA%sT # Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan, # Choybalsan, Sanbejse, Tchoibalsan Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug 7:00 - ULAT 1978 8:00 - ULAT 1983 Apr 9:00 Mongol CHO%sT 2008 Mar 31 # Choibalsan Time 8:00 Mongol CHO%sT # Nepal # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Kathmandu 5:41:16 - LMT 1920 5:30 - IST 1986 5:45 - NPT # Nepal Time # Oman # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Muscat 3:54:20 - LMT 1920 4:00 - GST # Pakistan # From Rives McDow (2002-03-13): # I have been advised that Pakistan has decided to adopt dst on a # TRIAL basis for one year, starting 00:01 local time on April 7, 2002 # and ending at 00:01 local time October 6, 2002. This is what I was # told, but I believe that the actual time of change may be 00:00; the # 00:01 was to make it clear which day it was on. # From Paul Eggert (2002-03-15): # Jesper Norgaard found this URL: # http://www.pak.gov.pk/public/news/app/app06_dec.htm # (dated 2001-12-06) which says that the Cabinet adopted a scheme "to # advance the clocks by one hour on the night between the first # Saturday and Sunday of April and revert to the original position on # 15th October each year". This agrees with McDow's 04-07 at 00:00, # but disagrees about the October transition, and makes it sound like # it's not on a trial basis. Also, the "between the first Saturday # and Sunday of April" phrase, if taken literally, means that the # transition takes place at 00:00 on the first Sunday on or after 04-02. # From Paul Eggert (2003-02-09): # DAWN <http://www.dawn.com/2002/10/06/top13.htm> reported on 2002-10-05 # that 2002 DST ended that day at midnight. Go with McDow for now. # From Steffen Thorsen (2003-03-14): # According to http://www.dawn.com/2003/03/07/top15.htm # there will be no DST in Pakistan this year: # # ISLAMABAD, March 6: Information and Media Development Minister Sheikh # Rashid Ahmed on Thursday said the cabinet had reversed a previous # decision to advance clocks by one hour in summer and put them back by # one hour in winter with the aim of saving light hours and energy. # # The minister told a news conference that the experiment had rather # shown 8 per cent higher consumption of electricity. # From Alex Krivenyshev (2008-05-15): # # Here is an article that Pakistan plan to introduce Daylight Saving Time # on June 1, 2008 for 3 months. # # "... The federal cabinet on Wednesday announced a new conservation plan to help # reduce load shedding by approving the closure of commercial centres at 9pm and # moving clocks forward by one hour for the next three months. # ...." # # <a href="http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html"> # http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html # </a> # OR # <a href="http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4"> # http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4 # </a> # From Arthur David Olson (2008-05-19): # XXX--midnight transitions is a guess; 2008 only is a guess. # From Alexander Krivenyshev (2008-08-28): # Pakistan government has decided to keep the watches one-hour advanced # for another 2 months--plan to return to Standard Time on October 31 # instead of August 31. # # <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html"> # http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html # </a> # OR # <a href="http://dailymailnews.com/200808/28/news/dmbrn03.html"> # http://dailymailnews.com/200808/28/news/dmbrn03.html # </a> # From Alexander Krivenyshev (2009-04-08): # Based on previous media reports that "... proposed plan to # advance clocks by one hour from May 1 will cause disturbance # to the working schedules rather than bringing discipline in # official working." # <a href="http://www.thenews.com.pk/daily_detail.asp?id=171280"> # http://www.thenews.com.pk/daily_detail.asp?id=171280 # </a> # # recent news that instead of May 2009 - Pakistan plan to # introduce DST from April 15, 2009 # # FYI: Associated Press Of Pakistan # April 08, 2009 # Cabinet okays proposal to advance clocks by one hour from April 15 # <a href="http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1"> # http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1 # </a> # # or # # <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html"> # http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html # </a> # # .... # The Federal Cabinet on Wednesday approved the proposal to # advance clocks in the country by one hour from April 15 to # conserve energy" # From Steffen Thorsen (2009-09-17): # "The News International," Pakistan reports that: "The Federal # Government has decided to restore the previous time by moving the # clocks backward by one hour from October 1. A formal announcement to # this effect will be made after the Prime Minister grants approval in # this regard." # <a href="http://www.thenews.com.pk/updates.asp?id=87168"> # http://www.thenews.com.pk/updates.asp?id=87168 # </a> # From Alexander Krivenyshev (2009-09-28): # According to Associated Press Of Pakistan, it is confirmed that # Pakistan clocks across the country would be turned back by an hour from October # 1, 2009. # # "Clocks to go back one hour from 1 Oct" # <a href="http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2"> # http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2 # </a> # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm"> # http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm # </a> # From Steffen Thorsen (2009-09-29): # Alexander Krivenyshev wrote: # > According to Associated Press Of Pakistan, it is confirmed that # > Pakistan clocks across the country would be turned back by an hour from October # > 1, 2009. # # Now they seem to have changed their mind, November 1 is the new date: # <a href="http://www.thenews.com.pk/top_story_detail.asp?Id=24742"> # http://www.thenews.com.pk/top_story_detail.asp?Id=24742 # </a> # "The country's clocks will be reversed by one hour on November 1. # Officials of Federal Ministry for Interior told this to Geo News on # Monday." # # And more importantly, it seems that these dates will be kept every year: # "It has now been decided that clocks will be wound forward by one hour # on April 15 and reversed by an hour on November 1 every year without # obtaining prior approval, the officials added." # # We have confirmed this year's end date with both with the Ministry of # Water and Power and the Pakistan Electric Power Company: # <a href="http://www.timeanddate.com/news/time/pakistan-ends-dst09.html"> # http://www.timeanddate.com/news/time/pakistan-ends-dst09.html # </a> # From Christoph Goehre (2009-10-01): # [T]he German Consulate General in Karachi reported me today that Pakistan # will go back to standard time on 1st of November. # From Steffen Thorsen (2010-03-26): # Steffen Thorsen wrote: # > On Thursday (2010-03-25) it was announced that DST would start in # > Pakistan on 2010-04-01. # > # > Then today, the president said that they might have to revert the # > decision if it is not supported by the parliament. So at the time # > being, it seems unclear if DST will be actually observed or not - but # > April 1 could be a more likely date than April 15. # Now, it seems that the decision to not observe DST in final: # # "Govt Withdraws Plan To Advance Clocks" # <a href="http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041"> # http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041 # </a> # # "People laud PM's announcement to end DST" # <a href="http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2"> # http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2 # </a> # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 - Rule Pakistan 2008 only - Jun 1 0:00 1:00 S Rule Pakistan 2008 only - Nov 1 0:00 0 - Rule Pakistan 2009 only - Apr 15 0:00 1:00 S Rule Pakistan 2009 only - Nov 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Karachi 4:28:12 - LMT 1907 5:30 - IST 1942 Sep 5:30 1:00 IST 1945 Oct 15 5:30 - IST 1951 Sep 30 5:00 - KART 1971 Mar 26 # Karachi Time 5:00 Pakistan PK%sT # Pakistan Time # Palestine # From Amos Shapir (1998-02-15): # # From 1917 until 1948-05-15, all of Palestine, including the parts now # known as the Gaza Strip and the West Bank, was under British rule. # Therefore the rules given for Israel for that period, apply there too... # # The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05 # (except a short occupation by Israel from 1956-11 till 1957-03, but no # time zone was affected then). It was never formally annexed to Egypt, # though. # # The rest of Palestine was under Jordanian rule at that time, formally # annexed in 1950 as the West Bank (and the word "Trans" was dropped from # the country's previous name of "the Hashemite Kingdom of the # Trans-Jordan"). So the rules for Jordan for that time apply. Major # towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and # East Jerusalem. # # Both areas were occupied by Israel in June 1967, but not annexed (except # for East Jerusalem). They were on Israel time since then; there might # have been a Military Governor's order about time zones, but I'm not aware # of any (such orders may have been issued semi-annually whenever summer # time was in effect, but maybe the legal aspect of time was just neglected). # # The Palestinian Authority was established in 1993, and got hold of most # towns in the West Bank and Gaza by 1995. I know that in order to # demonstrate...independence, they have been switching to # summer time and back on a different schedule than Israel's, but I don't # know when this was started, or what algorithm is used (most likely the # Jordanian one). # # To summarize, the table should probably look something like that: # # Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996- # ------------+-----------+-----------+-----------+----------- # Israel | Zion | Zion | Zion | Zion # West bank | Zion | Jordan | Zion | Jordan # Gaza | Zion | Egypt | Zion | Jordan # # I guess more info may be available from the PA's web page (if/when they # have one). # From Paul Eggert (2006-03-22): # Shanks & Pottenger write that Gaza did not observe DST until 1957, but go # with Shapir and assume that it observed DST from 1940 through 1947, # and that it used Jordanian rules starting in 1996. # We don't yet need a separate entry for the West Bank, since # the only differences between it and Gaza that we know about # occurred before our cutoff date of 1970. # However, as we get more information, we may need to add entries # for parts of the West Bank as they transitioned from Israel's rules # to Palestine's rules. # From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time, # forwarded by Ephraim Silverberg: # # Despite the fact that Israel changed over to daylight savings time # last week, the PLO Authority (PA) has decided not to turn its clocks # one-hour forward at this time. As a sign of independence from Israeli rule, # the PA has decided to implement DST in April. # From Paul Eggert (1999-09-20): # Daoud Kuttab writes in # <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html"> # Holiday havoc # </a> (Jerusalem Post, 1999-04-22) that # the Palestinian National Authority changed to DST on 1999-04-15. # I vaguely recall that they switch back in October (sorry, forgot the source). # For now, let's assume that the spring switch was at 24:00, # and that they switch at 0:00 on the 3rd Fridays of April and October. # From Paul Eggert (2005-11-22): # Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com. # From Steffen Thorsen (2005-11-23): # A user from Gaza reported that Gaza made the change early because of # the Ramadan. Next year Ramadan will be even earlier, so I think # there is a good chance next year's end date will be around two weeks # earlier--the same goes for Jordan. # From Steffen Thorsen (2006-08-17): # I was informed by a user in Bethlehem that in Bethlehem it started the # same day as Israel, and after checking with other users in the area, I # was informed that they started DST one day after Israel. I was not # able to find any authoritative sources at the time, nor details if # Gaza changed as well, but presumed Gaza to follow the same rules as # the West Bank. # From Steffen Thorsen (2006-09-26): # according to the Palestine News Network (2006-09-19): # http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5 # > The Council of Ministers announced that this year its winter schedule # > will begin early, as of midnight Thursday. It is also time to turn # > back the clocks for winter. Friday will begin an hour late this week. # I guess it is likely that next year's date will be moved as well, # because of the Ramadan. # From Jesper Norgaard Welen (2007-09-18): # According to Steffen Thorsen's web site the Gaza Strip and the rest of the # Palestinian territories left DST early on 13.th. of September at 2:00. # From Paul Eggert (2007-09-20): # My understanding is that Gaza and the West Bank disagree even over when # the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit # surprised if they agreed about DST. But for now, assume they agree. # For lack of better information, predict that future changes will be # the 2nd Thursday of September at 02:00. # From Alexander Krivenyshev (2008-08-28): # Here is an article, that Mideast running on different clocks at Ramadan. # # Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while # the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008). # # <a href="http://www.guardian.co.uk/world/feedarticle/7759001"> # http://www.guardian.co.uk/world/feedarticle/7759001 # </a> # <a href="http://www.abcnews.go.com/International/wireStory?id=5676087"> # http://www.abcnews.go.com/International/wireStory?id=5676087 # </a> # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html"> # http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html # </a> # From Alexander Krivenyshev (2009-03-26): # According to the Palestine News Network (arabic.pnn.ps), Palestinian # government decided to start Daylight Time on Thursday night March # 26 and continue until the night of 27 September 2009. # # (in Arabic) # <a href="http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850"> # http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850 # </a> # # or # (English translation) # <a href="http://www.worldtimezone.com/dst_news/dst_news_westbank01.html"> # http://www.worldtimezone.com/dst_news/dst_news_westbank01.html # </a> # From Steffen Thorsen (2009-08-31): # Palestine's Council of Ministers announced that they will revert back to # winter time on Friday, 2009-09-04. # # One news source: # <a href="http://www.safa.ps/ara/?action=showdetail&seid=4158"> # http://www.safa.ps/ara/?action=showdetail&seid=4158 # </a> # (Palestinian press agency, Arabic), # Google translate: "Decided that the Palestinian government in Ramallah # headed by Salam Fayyad, the start of work in time for the winter of # 2009, starting on Friday approved the fourth delay Sept. clock sixty # minutes per hour as of Friday morning." # # We are not sure if Gaza will do the same, last year they had a different # end date, we will keep this page updated: # <a href="http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html"> # http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html # </a> # From Alexander Krivenyshev (2009-09-02): # Seems that Gaza Strip will go back to Winter Time same date as West Bank. # # According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan # to change time back to Standard time on September 4, 2009. # # "Winter time unite the West Bank and Gaza" # (from Palestinian National Authority): # <a href="http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505 # http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505 # </a> # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html> # http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html # </a> # From Alexander Krivenyshev (2010-03-19): # According to Voice of Palestine DST will last for 191 days, from March # 26, 2010 till "the last Sunday before the tenth day of Tishri # (October), each year" (October 03, 2010?) # # <a href="http://palvoice.org/forums/showthread.php?t=245697"> # http://palvoice.org/forums/showthread.php?t=245697 # </a> # (in Arabic) # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_westbank03.html"> # http://www.worldtimezone.com/dst_news/dst_news_westbank03.html # </a> # From Steffen Thorsen (2010-03-24): # ...Ma'an News Agency reports that Hamas cabinet has decided it will # start one day later, at 12:01am. Not sure if they really mean 12:01am or # noon though: # # <a href="http://www.maannews.net/eng/ViewDetails.aspx?ID=271178"> # http://www.maannews.net/eng/ViewDetails.aspx?ID=271178 # </a> # (Ma'an News Agency) # "At 12:01am Friday, clocks in Israel and the West Bank will change to # 1:01am, while Gaza clocks will change at 12:01am Saturday morning." # From Steffen Thorsen (2010-08-11): # According to several sources, including # <a href="http://www.maannews.net/eng/ViewDetails.aspx?ID=306795"> # http://www.maannews.net/eng/ViewDetails.aspx?ID=306795 # </a> # the clocks were set back one hour at 2010-08-11 00:00:00 local time in # Gaza and the West Bank. # Some more background info: # <a href="http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html"> # http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html # </a> # From Steffen Thorsen (2011-08-26): # Gaza and the West Bank did go back to standard time in the beginning of # August, and will now enter daylight saving time again on 2011-08-30 # 00:00 (so two periods of DST in 2011). The pause was because of # Ramadan. # # <a href="http://www.maannews.net/eng/ViewDetails.aspx?ID=416217"> # http://www.maannews.net/eng/ViewDetails.aspx?ID=416217 # </a> # Additional info: # <a href="http://www.timeanddate.com/news/time/palestine-dst-2011.html"> # http://www.timeanddate.com/news/time/palestine-dst-2011.html # </a> # From Alexander Krivenyshev (2011-08-27): # According to the article in The Jerusalem Post: # "...Earlier this month, the Palestinian government in the West Bank decided to # move to standard time for 30 days, during Ramadan. The Palestinians in the # Gaza Strip accepted the change and also moved their clocks one hour back. # The Hamas government said on Saturday that it won't observe summertime after # the Muslim feast of Id al-Fitr, which begins on Tuesday..." # ... # <a href="http://www.jpost.com/MiddleEast/Article.aspx?id=235650"> # http://www.jpost.com/MiddleEast/Article.aspx?id=235650 # </a> # or # <a href="http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html"> # http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html # </a> # The rules for Egypt are stolen from the `africa' file. # From Steffen Thorsen (2011-09-30): # West Bank did end Daylight Saving Time this morning/midnight (2011-09-30 # 00:00). # So West Bank and Gaza now have the same time again. # # Many sources, including: # <a href="http://www.maannews.net/eng/ViewDetails.aspx?ID=424808"> # http://www.maannews.net/eng/ViewDetails.aspx?ID=424808 # </a> # From Steffen Thorsen (2012-03-26): # Palestinian news sources tell that both Gaza and West Bank will start DST # on Friday (Thursday midnight, 2012-03-29 24:00). # Some of many sources in Arabic: # <a href="http://www.samanews.com/index.php?act=Show&id=122638"> # http://www.samanews.com/index.php?act=Show&id=122638 # </a> # # <a href="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"> # 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 # </a> # # Our brief summary: # <a href="http://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html"> # http://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html # </a> # From Arthur David Olson (2012-03-27): # The timeanddate article for 2012 says that "the end date has not yet been # announced" and that "Last year, both...paused daylight saving time during... # Ramadan. It is not yet known [for] 2012." # For now, assume both switch back on the last Friday in September. XXX # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule EgyptAsia 1957 only - May 10 0:00 1:00 S Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 - Rule EgyptAsia 1958 only - May 1 0:00 1:00 S Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 - Rule EgyptAsia 1966 only - Oct 1 3:00 0 - Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 - Rule Palestine 2004 only - Oct 1 1:00 0 - Rule Palestine 2005 only - Oct 4 2:00 0 - Rule Palestine 2006 2008 - Apr 1 0:00 1:00 S Rule Palestine 2006 only - Sep 22 0:00 0 - Rule Palestine 2007 only - Sep Thu>=8 2:00 0 - Rule Palestine 2008 only - Aug lastFri 0:00 0 - Rule Palestine 2009 only - Mar lastFri 0:00 1:00 S Rule Palestine 2009 only - Sep Fri>=1 2:00 0 - Rule Palestine 2010 only - Mar lastSat 0:01 1:00 S Rule Palestine 2010 only - Aug 11 0:00 0 - # From Arthur David Olson (2011-09-20): # 2011 transitions per http://www.timeanddate.com as of 2011-09-20. # From Paul Eggert (2012-10-12): # 2012 transitions per http://www.timeanddate.com as of 2012-10-12. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2:00 Zion EET 1948 May 15 2:00 EgyptAsia EE%sT 1967 Jun 5 2:00 Zion I%sT 1996 2:00 Jordan EE%sT 1999 2:00 Palestine EE%sT 2011 Apr 2 12:01 2:00 1:00 EEST 2011 Aug 1 2:00 - EET 2012 Mar 30 2:00 1:00 EEST 2012 Sep 21 1:00 2:00 - EET Zone Asia/Hebron 2:20:23 - LMT 1900 Oct 2:00 Zion EET 1948 May 15 2:00 EgyptAsia EE%sT 1967 Jun 5 2:00 Zion I%sT 1996 2:00 Jordan EE%sT 1999 2:00 Palestine EE%sT 2008 Aug 2:00 1:00 EEST 2008 Sep 2:00 Palestine EE%sT 2011 Apr 1 12:01 2:00 1:00 EEST 2011 Aug 1 2:00 - EET 2011 Aug 30 2:00 1:00 EEST 2011 Sep 30 3:00 2:00 - EET 2012 Mar 30 2:00 1:00 EEST 2012 Sep 21 1:00 2:00 - EET # Paracel Is # no information # Philippines # On 1844-08-16, Narciso Claveria, governor-general of the # Philippines, issued a proclamation announcing that 1844-12-30 was to # be immediately followed by 1845-01-01. Robert H. van Gent has a # transcript of the decree in <http://www.phys.uu.nl/~vgent/idl/idl.htm>. # The rest of the data are from Shanks & Pottenger. # From Paul Eggert (2006-04-25): # Tomorrow's Manila Standard reports that the Philippines Department of # Trade and Industry is considering adopting DST this June when the # rainy season begins. See # <http://www.manilastandardtoday.com/?page=politics02_april26_2006>. # For now, we'll ignore this, since it's not definite and we lack details. # # From Jesper Norgaard Welen (2006-04-26): # ... claims that Philippines had DST last time in 1990: # http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/ # [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires, # but no details] # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Phil 1936 only - Nov 1 0:00 1:00 S Rule Phil 1937 only - Feb 1 0:00 0 - Rule Phil 1954 only - Apr 12 0:00 1:00 S Rule Phil 1954 only - Jul 1 0:00 0 - Rule Phil 1978 only - Mar 22 0:00 1:00 S Rule Phil 1978 only - Sep 21 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 8:04:00 - LMT 1899 May 11 8:00 Phil PH%sT 1942 May 9:00 - JST 1944 Nov 8:00 Phil PH%sT # Qatar # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha 4:00 - GST 1972 Jun 3:00 - AST # Saudi Arabia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Riyadh 3:06:52 - LMT 1950 3:00 - AST # Singapore # The data here are taken from Mok Ly Yng (2003-10-30) # <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 7:00 - MALT 1933 Jan 1 # Malaya Time 7:00 0:20 MALST 1936 Jan 1 7:20 - MALT 1941 Sep 1 7:30 - MALT 1942 Feb 16 9:00 - JST 1945 Sep 12 7:30 - MALT 1965 Aug 9 # independence 7:30 - SGT 1982 Jan 1 # Singapore Time 8:00 - SGT # Spratly Is # no information # Sri Lanka # From Paul Eggert (1996-09-03): # "Sri Lanka advances clock by an hour to avoid blackout" # (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24, # no longer available as of 1999-08-17) # reported ``the country's standard time will be put forward by one hour at # midnight Friday (1830 GMT) `in the light of the present power crisis'.'' # # From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted # by Shamindra in # <a href="news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net"> # Daily News - Hot News Section (1996-10-26) # </a>: # With effect from 12.30 a.m. on 26th October 1996 # Sri Lanka will be six (06) hours ahead of GMT. # From Jesper Norgaard Welen (2006-04-14), quoting Sri Lanka News Online # <http://news.sinhalaya.com/wmview.php?ArtID=11002> (2006-04-13): # 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes) # at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006). # From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in: # <http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML> # [The Tamil Tigers] never accepted the original 1996 time change and simply # kept their clocks set five and a half hours ahead of Greenwich Mean # Time (GMT), in line with neighbor India. # From Paul Eggert (2006-04-18): # People who live in regions under Tamil control can use [TZ='Asia/Kolkata'], # as that zone has agreed with the Tamil areas since our cutoff date of 1970. # From K Sethu (2006-04-25): # I think the abbreviation LKT originated from the world of computers at # the time of or subsequent to the time zone changes by SL Government # twice in 1996 and probably SL Government or its standardization # agencies never declared an abbreviation as a national standard. # # I recollect before the recent change the government annoucemments # mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka # Time and no mention was made about the abbreviation. # # If we look at Sri Lanka Department of Government's "Official News # Website of Sri Lanka" ... http://www.news.lk/ we can see that they # use SLT as abbreviation in time stamp at the beginning of each news # item.... # # Within Sri Lanka I think LKT is well known among computer users and # adminsitrators. In my opinion SLT may not be a good choice because the # nation's largest telcom / internet operator Sri Lanka Telcom is well # known by that abbreviation - simply as SLT (there IP domains are # slt.lk and sltnet.lk). # # But if indeed our government has adopted SLT as standard abbreviation # (that we have not known so far) then it is better that it be used for # all computers. # From Paul Eggert (2006-04-25): # One possibility is that we wait for a bit for the dust to settle down # and then see what people actually say in practice. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Colombo 5:19:24 - LMT 1880 5:19:32 - MMT 1906 # Moratuwa Mean Time 5:30 - IST 1942 Jan 5 5:30 0:30 IHST 1942 Sep 5:30 1:00 IST 1945 Oct 16 2:00 5:30 - IST 1996 May 25 0:00 6:30 - LKT 1996 Oct 26 0:30 6:00 - LKT 2006 Apr 15 0:30 5:30 - IST # Syria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 - Rule Syria 1962 only - Apr 29 2:00 1:00 S Rule Syria 1962 only - Oct 1 2:00 0 - Rule Syria 1963 1965 - May 1 2:00 1:00 S Rule Syria 1963 only - Sep 30 2:00 0 - Rule Syria 1964 only - Oct 1 2:00 0 - Rule Syria 1965 only - Sep 30 2:00 0 - Rule Syria 1966 only - Apr 24 2:00 1:00 S Rule Syria 1966 1976 - Oct 1 2:00 0 - Rule Syria 1967 1978 - May 1 2:00 1:00 S Rule Syria 1977 1978 - Sep 1 2:00 0 - Rule Syria 1983 1984 - Apr 9 2:00 1:00 S Rule Syria 1983 1984 - Oct 1 2:00 0 - Rule Syria 1986 only - Feb 16 2:00 1:00 S Rule Syria 1986 only - Oct 9 2:00 0 - Rule Syria 1987 only - Mar 1 2:00 1:00 S Rule Syria 1987 1988 - Oct 31 2:00 0 - Rule Syria 1988 only - Mar 15 2:00 1:00 S Rule Syria 1989 only - Mar 31 2:00 1:00 S Rule Syria 1989 only - Oct 1 2:00 0 - Rule Syria 1990 only - Apr 1 2:00 1:00 S Rule Syria 1990 only - Sep 30 2:00 0 - Rule Syria 1991 only - Apr 1 0:00 1:00 S Rule Syria 1991 1992 - Oct 1 0:00 0 - Rule Syria 1992 only - Apr 8 0:00 1:00 S Rule Syria 1993 only - Mar 26 0:00 1:00 S Rule Syria 1993 only - Sep 25 0:00 0 - # IATA SSIM (1998-02) says 1998-04-02; # (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02, # 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31; # (2006) says 2006-03-31 and 2006-09-22; # for now ignore all these claims and go with Shanks & Pottenger, # except for the 2006-09-22 claim (which seems right for Ramadan). Rule Syria 1994 1996 - Apr 1 0:00 1:00 S Rule Syria 1994 2005 - Oct 1 0:00 0 - Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S Rule Syria 1999 2006 - Apr 1 0:00 1:00 S # From Stephen Colebourne (2006-09-18): # According to IATA data, Syria will change DST on 21st September [21:00 UTC] # this year [only].... This is probably related to Ramadan, like Egypt. Rule Syria 2006 only - Sep 22 0:00 0 - # From Paul Eggert (2007-03-29): # Today the AP reported "Syria will switch to summertime at midnight Thursday." # http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php Rule Syria 2007 only - Mar lastFri 0:00 1:00 S # From Jesper Norgard (2007-10-27): # The sister center ICARDA of my work CIMMYT is confirming that Syria DST will # not take place 1.st November at 0:00 o'clock but 1.st November at 24:00 or # rather Midnight between Thursday and Friday. This does make more sence than # having it between Wednesday and Thursday (two workdays in Syria) since the # weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now # it is implemented at midnight of the last workday before weekend... # # From Steffen Thorsen (2007-10-27): # Jesper Norgaard Welen wrote: # # > "Winter local time in Syria will be observed at midnight of Thursday 1 # > November 2007, and the clock will be put back 1 hour." # # I found confirmation on this in this gov.sy-article (Arabic): # http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247 # # which using Google's translate tools says: # Council of Ministers also approved the commencement of work on # identifying the winter time as of Friday, 2/11/2007 where the 60th # minute delay at midnight Thursday 1/11/2007. Rule Syria 2007 only - Nov Fri>=1 0:00 0 - # From Stephen Colebourne (2008-03-17): # For everyone's info, I saw an IATA time zone change for [Syria] for # this month (March 2008) in the last day or so...This is the data IATA # are now using: # Country Time Standard --- DST Start --- --- DST End --- DST # Name Zone Variation Time Date Time Date # Variation # Syrian Arab # Republic SY +0200 2200 03APR08 2100 30SEP08 +0300 # 2200 02APR09 2100 30SEP09 +0300 # 2200 01APR10 2100 30SEP10 +0300 # From Arthur David Olson (2008-03-17): # Here's a link to English-language coverage by the Syrian Arab News # Agency (SANA)... # <a href="http://www.sana.sy/eng/21/2008/03/11/165173.htm"> # http://www.sana.sy/eng/21/2008/03/11/165173.htm # </a>...which reads (in part) "The Cabinet approved the suggestion of the # Ministry of Electricity to begin daylight savings time on Friday April # 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd." # Since Syria is two hours east of UTC, the 2200 and 2100 transition times # shown above match up with midnight in Syria. # From Arthur David Olson (2008-03-18): # My buest guess at a Syrian rule is "the Friday nearest April 1"; # coding that involves either using a "Mar Fri>=29" construct that old time zone # compilers can't handle or having multiple Rules (a la Israel). # For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end. # From Steffen Thorsen (2008-10-07): # Syria has now officially decided to end DST on 2008-11-01 this year, # according to the following article in the Syrian Arab News Agency (SANA). # # The article is in Arabic, and seems to tell that they will go back to # winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting # clocks back 60 minutes). # # <a href="http://sana.sy/ara/2/2008/10/07/195459.htm"> # http://sana.sy/ara/2/2008/10/07/195459.htm # </a> # From Steffen Thorsen (2009-03-19): # Syria will start DST on 2009-03-27 00:00 this year according to many sources, # two examples: # # <a href="http://www.sana.sy/eng/21/2009/03/17/217563.htm"> # http://www.sana.sy/eng/21/2009/03/17/217563.htm # </a> # (English, Syrian Arab News # Agency) # <a href="http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209"> # http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209 # </a> # (Arabic, gov-site) # # We have not found any sources saying anything about when DST ends this year. # # Our summary # <a href="http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html"> # http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html # </a> # From Steffen Thorsen (2009-10-27): # The Syrian Arab News Network on 2009-09-29 reported that Syria will # revert back to winter (standard) time on midnight between Thursday # 2009-10-29 and Friday 2009-10-30: # <a href="http://www.sana.sy/ara/2/2009/09/29/247012.htm"> # http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic) # </a> # From Arthur David Olson (2009-10-28): # We'll see if future DST switching times turn out to be end of the last # Thursday of the month or the start of the last Friday of the month or # something else. For now, use the start of the last Friday. # From Steffen Thorsen (2010-03-17): # The "Syrian News Station" reported on 2010-03-16 that the Council of # Ministers has decided that Syria will start DST on midnight Thursday # 2010-04-01: (midnight between Thursday and Friday): # <a href="http://sns.sy/sns/?path=news/read/11421"> # http://sns.sy/sns/?path=news/read/11421 (Arabic) # </a> # From Steffen Thorsen (2012-03-26): # Today, Syria's government announced that they will start DST early on Friday # (00:00). This is a bit earlier than the past two years. # # From Syrian Arab News Agency, in Arabic: # <a href="http://www.sana.sy/ara/2/2012/03/26/408215.htm"> # http://www.sana.sy/ara/2/2012/03/26/408215.htm # </a> # # Our brief summary: # <a href="http://www.timeanddate.com/news/time/syria-dst-2012.html"> # http://www.timeanddate.com/news/time/syria-dst-2012.html # </a> # From Arthur David Olson (2012-03-27): # Assume last Friday in March going forward XXX. Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S Rule Syria 2008 only - Nov 1 0:00 0 - Rule Syria 2009 only - Mar lastFri 0:00 1:00 S Rule Syria 2010 2011 - Apr Fri>=1 0:00 1:00 S Rule Syria 2012 max - Mar lastFri 0:00 1:00 S Rule Syria 2009 max - Oct lastFri 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq 2:00 Syria EE%sT # Tajikistan # From Shanks & Pottenger. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 5:00 - DUST 1930 Jun 21 # Dushanbe Time 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s 5:00 1:00 DUSST 1991 Sep 9 2:00s 5:00 - TJT # Tajikistan Time # Thailand # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bangkok 6:42:04 - LMT 1880 6:42:04 - BMT 1920 Apr # Bangkok Mean Time 7:00 - ICT # Turkmenistan # From Shanks & Pottenger. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00 5:00 - TMT # United Arab Emirates # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dubai 3:41:12 - LMT 1920 4:00 - GST # Uzbekistan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2 4:00 - SAMT 1930 Jun 21 # Samarkand Time 5:00 - SAMT 1981 Apr 1 5:00 1:00 SAMST 1981 Oct 1 6:00 - TAST 1982 Apr 1 # Tashkent Time 5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence 5:00 RussiaAsia UZ%sT 1992 5:00 - UZT Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2 5:00 - TAST 1930 Jun 21 # Tashkent Time 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence 5:00 RussiaAsia UZ%sT 1992 5:00 - UZT # Vietnam # From Arthur David Olson (2008-03-18): # The English-language name of Vietnam's most populous city is "Ho Chi Min City"; # we use Ho_Chi_Minh below to avoid a name of more than 14 characters. # From Shanks & Pottenger: # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT? 7:00 - ICT 1912 May 8:00 - ICT 1931 May 7:00 - ICT # Yemen # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Aden 3:00:48 - LMT 1950 3:00 - AST
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