blob: bec343b7796f80fcef3897de3184136327960c1b [file] [log] [blame]
J. Duke319a3b92007-12-01 00:00:00 +00001#
2# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3#
4# This code is free software; you can redistribute it and/or modify it
5# under the terms of the GNU General Public License version 2 only, as
6# published by the Free Software Foundation. Sun designates this
7# particular file as subject to the "Classpath" exception as provided
8# by Sun in the LICENSE file that accompanied this code.
9#
10# This code is distributed in the hope that it will be useful, but WITHOUT
11# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13# version 2 for more details (a copy is included in the LICENSE file that
14# accompanied this code).
15#
16# You should have received a copy of the GNU General Public License version
17# 2 along with this work; if not, write to the Free Software Foundation,
18# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19#
20# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21# CA 95054 USA or visit www.sun.com if you need additional information or
22# have any questions.
23#
24# <pre>
25
26# This data is by no means authoritative; if you think you know better,
27# go ahead and edit the file (and please send any changes to
28# tz@elsie.nci.nih.gov for general use in the future).
29
30# From Paul Eggert (2006-03-22):
31#
32# A good source for time zone historical data outside the U.S. is
33# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
34# San Diego: ACS Publications, Inc. (2003).
35#
36# Gwillim Law writes that a good source
37# for recent time zone data is the International Air Transport
38# Association's Standard Schedules Information Manual (IATA SSIM),
39# published semiannually. Law sent in several helpful summaries
40# of the IATA's data after 1990.
41#
42# Except where otherwise noted, Shanks & Pottenger is the source for
43# entries through 1990, and IATA SSIM is the source for entries afterwards.
44#
45# Another source occasionally used is Edward W. Whitman, World Time Differences,
46# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
47# I found in the UCLA library.
48#
49# A reliable and entertaining source about time zones is
50# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
51#
52# I invented the abbreviations marked `*' in the following table;
53# the rest are from earlier versions of this file, or from other sources.
54# Corrections are welcome!
55# std dst
56# LMT Local Mean Time
57# 2:00 EET EEST Eastern European Time
58# 2:00 IST IDT Israel
59# 3:00 AST ADT Arabia*
60# 3:30 IRST IRDT Iran
61# 4:00 GST Gulf*
62# 5:30 IST India
63# 7:00 ICT Indochina*
64# 7:00 WIT west Indonesia
65# 8:00 CIT central Indonesia
66# 8:00 CST China
67# 9:00 CJT Central Japanese Time (1896/1937)*
68# 9:00 EIT east Indonesia
69# 9:00 JST JDT Japan
70# 9:00 KST KDT Korea
71# 9:30 CST (Australian) Central Standard Time
72#
73# See the `europe' file for Russia and Turkey in Asia.
74
75# From Guy Harris:
76# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
77# additional information from Tom Yap, Sun Microsystems Intercontinental
78# Technical Support (including a page from the Official Airline Guide -
79# Worldwide Edition). The names for time zones are guesses.
80
81###############################################################################
82
83# These rules are stolen from the `europe' file.
84# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
85Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
86Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 -
87Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
88Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
89Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
90Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
91Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
92Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
93Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
94Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
95Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
96Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
97Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
98Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
99Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
100
101# Afghanistan
102# Zone NAME GMTOFF RULES FORMAT [UNTIL]
103Zone Asia/Kabul 4:36:48 - LMT 1890
104 4:00 - AFT 1945
105 4:30 - AFT
106
107# Armenia
108# From Paul Eggert (2006-03-22):
109# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST)
110# in spring 1991, then to 4:00 with no DST in fall 1995, then
111# readopting Russian DST in 1997. Go with Shanks & Pottenger, even
112# when they disagree with others. Edgar Der-Danieliantz
113# reported (1996-05-04) that Yerevan probably wouldn't use DST
114# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
115# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
116# but started switching at 3:00s in 1998.
117# Zone NAME GMTOFF RULES FORMAT [UNTIL]
118Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
119 3:00 - YERT 1957 Mar # Yerevan Time
120 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
121 3:00 1:00 YERST 1991 Sep 23 # independence
122 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
123 4:00 - AMT 1997
124 4:00 RussiaAsia AM%sT
125
126# Azerbaijan
127# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
128# According to the resolution of Cabinet of Ministers, 1997
129# Resolution available at: http://aif.az/docs/daylight_res.pdf
130# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
131Rule Azer 1997 max - Mar lastSun 4:00 1:00 S
132Rule Azer 1997 max - Oct lastSun 5:00 0 -
133# Zone NAME GMTOFF RULES FORMAT [UNTIL]
134Zone Asia/Baku 3:19:24 - LMT 1924 May 2
135 3:00 - BAKT 1957 Mar # Baku Time
136 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
137 3:00 1:00 BAKST 1991 Aug 30 # independence
138 3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00
139 4:00 - AZT 1996 # Azerbaijan time
140 4:00 EUAsia AZ%sT 1997
141 4:00 Azer AZ%sT
142
143# Bahrain
144# Zone NAME GMTOFF RULES FORMAT [UNTIL]
145Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah
146 4:00 - GST 1972 Jun
147 3:00 - AST
148
149# Bangladesh
150# Zone NAME GMTOFF RULES FORMAT [UNTIL]
151Zone Asia/Dhaka 6:01:40 - LMT 1890
152 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
153 6:30 - BURT 1942 May 15 # Burma Time
154 5:30 - IST 1942 Sep
155 6:30 - BURT 1951 Sep 30
156 6:00 - DACT 1971 Mar 26 # Dacca Time
157 6:00 - BDT # Bangladesh Time
158
159# Bhutan
160# Zone NAME GMTOFF RULES FORMAT [UNTIL]
161Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu
162 5:30 - IST 1987 Oct
163 6:00 - BTT # Bhutan Time
164
165# British Indian Ocean Territory
166# Whitman and the 1995 CIA time zone map say 5:00, but the
167# 1997 and later maps say 6:00. Assume the switch occurred in 1996.
168# We have no information as to when standard time was introduced;
169# assume it occurred in 1907, the same year as Mauritius (which
170# then contained the Chagos Archipelago).
171# Zone NAME GMTOFF RULES FORMAT [UNTIL]
172Zone Indian/Chagos 4:49:40 - LMT 1907
173 5:00 - IOT 1996 # BIOT Time
174 6:00 - IOT
175
176# Brunei
177# Zone NAME GMTOFF RULES FORMAT [UNTIL]
178Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
179 7:30 - BNT 1933
180 8:00 - BNT
181
182# Burma / Myanmar
183# Zone NAME GMTOFF RULES FORMAT [UNTIL]
184Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
185 6:24:36 - RMT 1920 # Rangoon Mean Time?
186 6:30 - BURT 1942 May # Burma Time
187 9:00 - JST 1945 May 3
188 6:30 - MMT # Myanmar Time
189
190# Cambodia
191# Zone NAME GMTOFF RULES FORMAT [UNTIL]
192Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
193 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
194 7:00 - ICT 1912 May
195 8:00 - ICT 1931 May
196 7:00 - ICT
197
198# China
199
200# From Guy Harris:
201# People's Republic of China. Yes, they really have only one time zone.
202
203# From Bob Devine (1988-01-28):
204# No they don't. See TIME mag, 1986-02-17 p.52. Even though
205# China is across 4 physical time zones, before Feb 1, 1986 only the
206# Peking (Bejing) time zone was recognized. Since that date, China
207# has two of 'em -- Peking's and Urumqi (named after the capital of
208# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it.
209#
210# . . .I just deleted the DST table and this editor makes it too
211# painful to suck in another copy.. So, here is what I have for
212# DST start/end dates for Peking's time zone (info from AP):
213#
214# 1986 May 4 - Sept 14
215# 1987 mid-April - ??
216
217# From U. S. Naval Observatory (1989-01-19):
218# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
219# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
220
221# From Paul Eggert (2006-03-22):
222# Shanks & Pottenger write that China (except for Hong Kong and Macau)
223# has had a single time zone since 1980 May 1, observing summer DST
224# from 1986 through 1991; this contradicts Devine's
225# note about Time magazine, though apparently _something_ happened in 1986.
226# Go with Shanks & Pottenger for now. I made up names for the other
227# pre-1980 time zones.
228
229# From Shanks & Pottenger:
230# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
231Rule Shang 1940 only - Jun 3 0:00 1:00 D
232Rule Shang 1940 1941 - Oct 1 0:00 0 S
233Rule Shang 1941 only - Mar 16 0:00 1:00 D
234Rule PRC 1986 only - May 4 0:00 1:00 D
235Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
236Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
237
238# From Anthony Fok (2001-12-20):
239# BTW, I did some research on-line and found some info regarding these five
240# historic timezones from some Taiwan websites. And yes, there are official
241# Chinese names for these locales (before 1949).
242#
243# From Jesper Norgaard Welen (2006-07-14):
244# I have investigated the timezones around 1970 on the
245# http://www.astro.com/atlas site [with provinces and county
246# boundaries summarized below].... A few other exceptions were two
247# counties on the Sichuan side of the Xizang-Sichuan border,
248# counties Dege and Baiyu which lies on the Sichuan side and are
249# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege
250# county is GMT+8 according to astro.com while Baiyu county is GMT+6
251# (could be true), for the moment I am assuming that those two
252# counties are mistakes in the astro.com data.
253
254
255# Zone NAME GMTOFF RULES FORMAT [UNTIL]
256# Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
257# Heilongjiang (except Mohe county), Jilin
258Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
259 8:30 - CHAT 1932 Mar # Changbai Time
260 8:00 - CST 1940
261 9:00 - CHAT 1966 May
262 8:30 - CHAT 1980 May
263 8:00 PRC C%sT
264# Zhongyuan Time ("Central plain Time")
265# most of China
266Zone Asia/Shanghai 8:05:52 - LMT 1928
267 8:00 Shang C%sT 1949
268 8:00 PRC C%sT
269# Long-shu Time (probably due to Long and Shu being two names of that area)
270# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
271# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
272# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
273# Yangchun, Yangjiang, Yu'nan, and Yunfu.
274Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking
275 7:00 - LONT 1980 May # Long-shu Time
276 8:00 PRC C%sT
277# Xin-zang Time ("Xinjiang-Tibet Time")
278# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai;
279# the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang,
280# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi;
281# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi;
282# east Xinjiang, including Urumqi, Turpan, Karamay, Korla, Minfeng, Jinghe,
283# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin,
284# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami,
285# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan.
286Zone Asia/Urumqi 5:50:20 - LMT 1928 # or Urumchi
287 6:00 - URUT 1980 May # Urumqi Time
288 8:00 PRC C%sT
289# Kunlun Time
290# West Tibet, including Pulan, Aheqi, Shufu, Shule;
291# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
292# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding,
293# and Yarkand.
294Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
295 5:30 - KAST 1940 # Kashgar Time
296 5:00 - KAST 1980 May
297 8:00 PRC C%sT
298
299# Hong Kong (Xianggang)
300# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
301Rule HK 1946 only - Apr 20 3:30 1:00 S
302Rule HK 1946 only - Dec 1 3:30 0 -
303Rule HK 1947 only - Apr 13 3:30 1:00 S
304Rule HK 1947 only - Dec 30 3:30 0 -
305Rule HK 1948 only - May 2 3:30 1:00 S
306Rule HK 1948 1952 - Oct lastSun 3:30 0 -
307Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
308Rule HK 1953 only - Nov 1 3:30 0 -
309Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
310Rule HK 1954 only - Oct 31 3:30 0 -
311Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
312Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S
313Rule HK 1965 1977 - Oct Sun>=16 3:30 0 -
314Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
315Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
316# Zone NAME GMTOFF RULES FORMAT [UNTIL]
317Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
318 8:00 HK HK%sT
319
320
321###############################################################################
322
323# Taiwan
324
325# Shanks & Pottenger write that Taiwan observed DST during 1945, when it
326# was still controlled by Japan. This is hard to believe, but we don't
327# have any other information.
328
329# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
330Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
331Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
332Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
333Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
334Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
335Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
336Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
337Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
338Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
339Rule Taiwan 1980 only - Jun 30 0:00 1:00 D
340Rule Taiwan 1980 only - Sep 30 0:00 0 S
341# Zone NAME GMTOFF RULES FORMAT [UNTIL]
342Zone Asia/Taipei 8:06:00 - LMT 1896 # or Taibei or T'ai-pei
343 8:00 Taiwan C%sT
344
345# Macau (Macao, Aomen)
346# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
347Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S
348Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 -
349Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S
350Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S
351Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S
352Rule Macau 1965 only - Oct 31 0:00 0 -
353Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S
354Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 -
355Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S
356Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 -
357Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 -
358Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S
359Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S
360Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 -
361# Zone NAME GMTOFF RULES FORMAT [UNTIL]
362Zone Asia/Macau 7:34:20 - LMT 1912
363 8:00 Macau MO%sT 1999 Dec 20 # return to China
364 8:00 PRC C%sT
365
366
367###############################################################################
368
369# Cyprus
370# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
371Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
372Rule Cyprus 1975 only - Oct 12 0:00 0 -
373Rule Cyprus 1976 only - May 15 0:00 1:00 S
374Rule Cyprus 1976 only - Oct 11 0:00 0 -
375Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
376Rule Cyprus 1977 only - Sep 25 0:00 0 -
377Rule Cyprus 1978 only - Oct 2 0:00 0 -
378Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
379Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
380# Zone NAME GMTOFF RULES FORMAT [UNTIL]
381Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
382 2:00 Cyprus EE%sT 1998 Sep
383 2:00 EUAsia EE%sT
384# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
385
386# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
387# However, for various reasons many users expect to find it under Europe.
388Link Asia/Nicosia Europe/Nicosia
389
390# Georgia
391# From Paul Eggert (1994-11-19):
392# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
393# an hour recently, due to a law proposed by Zurab Murvanidze,
394# an MP who went on a hunger strike for 11 days to force discussion about it!
395# We have no details, but we'll guess they didn't move the clocks back in fall.
396#
397# From Mathew Englander, quoting AP (1996-10-23 13:05-04):
398# Instead of putting back clocks at the end of October, Georgia
399# will stay on daylight savings time this winter to save energy,
400# President Eduard Shevardnadze decreed Wednesday.
401#
402# From the BBC via Joseph S. Myers (2004-06-27):
403#
404# Georgia moved closer to Western Europe on Sunday... The former Soviet
405# republic has changed its time zone back to that of Moscow. As a result it
406# is now just four hours ahead of Greenwich Mean Time, rather than five hours
407# ahead. The switch was decreed by the pro-Western president of Georgia,
408# Mikhail Saakashvili, who said the change was partly prompted by the process
409# of integration into Europe.
410
411# From Teimuraz Abashidze (2005-11-07):
412# Government of Georgia ... decided to NOT CHANGE daylight savings time on
413# [Oct.] 30, as it was done before during last more than 10 years.
414# Currently, we are in fact GMT +4:00, as before 30 October it was GMT
415# +3:00.... The problem is, there is NO FORMAL LAW or governmental document
416# about it. As far as I can find, I was told, that there is no document,
417# because we just DIDN'T ISSUE document about switching to winter time....
418# I don't know what can be done, especially knowing that some years ago our
419# DST rules where changed THREE TIMES during one month.
420
421
422# Zone NAME GMTOFF RULES FORMAT [UNTIL]
423Zone Asia/Tbilisi 2:59:16 - LMT 1880
424 2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time
425 3:00 - TBIT 1957 Mar # Tbilisi Time
426 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
427 3:00 1:00 TBIST 1991 Apr 9 # independence
428 3:00 RussiaAsia GE%sT 1992 # Georgia Time
429 3:00 E-EurAsia GE%sT 1994 Sep lastSun
430 4:00 E-EurAsia GE%sT 1996 Oct lastSun
431 4:00 1:00 GEST 1997 Mar lastSun
432 4:00 E-EurAsia GE%sT 2004 Jun 27
433 3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
434 4:00 - GET
435
436# East Timor
437
438# See Indonesia for the 1945 transition.
439
440# From Joao Carrascalao, brother of the former governor of East Timor, in
441# <a href="http://etan.org/et99c/december/26-31/30ETMAY.htm">
442# East Timor may be late for its millennium
443# </a> (1999-12-26/31):
444# Portugal tried to change the time forward in 1974 because the sun
445# rises too early but the suggestion raised a lot of problems with the
446# Timorese and I still don't think it would work today because it
447# conflicts with their way of life.
448
449# From Paul Eggert (2000-12-04):
450# We don't have any record of the above attempt.
451# Most likely our records are incomplete, but we have no better data.
452
453# <a href="http://www.hri.org/news/world/undh/last/00-08-16.undh.html">
454# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General
455# (2000-08-16)</a>:
456# The Cabinet of the East Timor Transition Administration decided
457# today to advance East Timor's time by one hour. The time change,
458# which will be permanent, with no seasonal adjustment, will happen at
459# midnight on Saturday, September 16.
460
461# Zone NAME GMTOFF RULES FORMAT [UNTIL]
462Zone Asia/Dili 8:22:20 - LMT 1912
463 8:00 - TLT 1942 Feb 21 23:00 # E Timor Time
464 9:00 - JST 1945 Sep 23
465 9:00 - TLT 1976 May 3
466 8:00 - CIT 2000 Sep 17 00:00
467 9:00 - TLT
468
469# India
470# Zone NAME GMTOFF RULES FORMAT [UNTIL]
471Zone Asia/Calcutta 5:53:28 - LMT 1880 # Kolkata
472 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
473 6:30 - BURT 1942 May 15 # Burma Time
474 5:30 - IST 1942 Sep
475 5:30 1:00 IST 1945 Oct 15
476 5:30 - IST
477# The following are like Asia/Calcutta:
478# Andaman Is
479# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
480# Nicobar Is
481
482# Indonesia
483#
484# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
485# <http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime>
486# says that Indonesia's time zones changed on 1988-01-01. Looking at some
487# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
488# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
489#
490# From Paul Eggert (2007-03-10):
491# Here is another correction to Shanks & Pottenger.
492# JohnTWB writes that Japanese forces did not surrender control in
493# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and
494# other formal surrender ceremonies were September 9, 11, and 13, plus
495# September 12 for the regional surrender to Mountbatten in Singapore.
496# These would be the earliest possible times for a change.
497# Regimes horaires pour le monde entier, by Henri Le Corre, (Editions
498# Traditionnelles, 1987, Paris) says that Java and Madura switched
499# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
500# (Hollandia). For now, assume all Indonesian locations other than Jayapura
501# switched on 1945-09-23.
502#
503# Zone NAME GMTOFF RULES FORMAT [UNTIL]
504Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
505# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
506# but this must be a typo.
507 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta
508 7:20 - JAVT 1932 Nov # Java Time
509 7:30 - WIT 1942 Mar 23
510 9:00 - JST 1945 Sep 23
511 7:30 - WIT 1948 May
512 8:00 - WIT 1950 May
513 7:30 - WIT 1964
514 7:00 - WIT
515Zone Asia/Pontianak 7:17:20 - LMT 1908 May
516 7:17:20 - PMT 1932 Nov # Pontianak MT
517 7:30 - WIT 1942 Jan 29
518 9:00 - JST 1945 Sep 23
519 7:30 - WIT 1948 May
520 8:00 - WIT 1950 May
521 7:30 - WIT 1964
522 8:00 - CIT 1988 Jan 1
523 7:00 - WIT
524Zone Asia/Makassar 7:57:36 - LMT 1920
525 7:57:36 - MMT 1932 Nov # Macassar MT
526 8:00 - CIT 1942 Feb 9
527 9:00 - JST 1945 Sep 23
528 8:00 - CIT
529Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
530 9:00 - EIT 1944 Sep 1
531 9:30 - CST 1964
532 9:00 - EIT
533
534# Iran
535
536# From Roozbeh Pournader (2003-03-15):
537# This is an English translation of what I just found (originally in Persian).
538# The Gregorian dates in brackets are mine:
539#
540# Official Newspaper No. 13548-1370/6/25 [1991-09-16]
541# No. 16760/T233 H 1370/6/10 [1991-09-01]
542#
543# The Rule About Change of the Official Time of the Country
544#
545# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14],
546# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13]
547# of the Country's Organization for Official and Employment Affairs,
548# and referring to the law for equating the working hours of workers
549# and officers in the whole country dated 1359/4/23 [1980-07-14], and
550# for synchronizing the official times of the country, agreed that:
551#
552# The official time of the country will should move forward one hour
553# at the 24[:00] hours of the first day of Farvardin and should return
554# to its previous state at the 24[:00] hours of the 30th day of
555# Shahrivar.
556#
557# First Deputy to the President - Hassan Habibi
558#
559# From personal experience, that agrees with what has been followed
560# for at least the last 5 years. Before that, for a few years, the
561# date used was the first Thursday night of Farvardin and the last
562# Thursday night of Shahrivar, but I can't give exact dates....
563# I have also changed the abbreviations to what is considered correct
564# here in Iran, IRST for regular time and IRDT for daylight saving time.
565#
566# From Roozbeh Pournader (2005-04-05):
567# The text of the Iranian law, in effect since 1925, clearly mentions
568# that the true solar year is the measure, and there is no arithmetic
569# leap year calculation involved. There has never been any serious
570# plan to change that law....
571#
572# From Paul Eggert (2006-03-22):
573# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
574# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
575# stopping after 2037 when 32-bit time_t's overflow.
576# That cal-persia used Birashk's approximation, which disagrees with the solar
577# calendar predictions for the year 2025, so I corrected those dates by hand.
578#
579# From Oscar van Vlijmen (2005-03-30), writing about future
580# discrepancies between cal-persia and the Iranian calendar:
581# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for
582# the vernal equinox and that gets so close to 12:00 some local
583# Iranian time that the definition of the correct location needs to be
584# known exactly, amongst other factors. 2157 is even closer:
585# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give
586# no interpretation problem whatsoever. By the way, another instant
587# in the near future where there will be a discrepancy between
588# arithmetical and astronomical Iranian calendars will be in 2058:
589# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of
590# Reingold's/Dershowitz' calculator gives correctly the Gregorian date
591# 2058-03-21 for 1 Farvardin 1437 (astronomical).
592#
593# From Steffen Thorsen (2006-03-22):
594# Several of my users have reported that Iran will not observe DST anymore:
595# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm
596#
597# From Reuters (2007-09-16), with a heads-up from Jesper Norgaard Welen:
598# ... the Guardian Council ... approved a law on Sunday to re-introduce
599# daylight saving time ...
600# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
601#
602# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
603Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
604Rule Iran 1978 only - Oct 21 0:00 0 S
605Rule Iran 1979 only - Sep 19 0:00 0 S
606Rule Iran 1980 only - Sep 23 0:00 0 S
607Rule Iran 1991 only - May 3 0:00 1:00 D
608Rule Iran 1992 1995 - Mar 22 0:00 1:00 D
609Rule Iran 1991 1995 - Sep 22 0:00 0 S
610Rule Iran 1996 only - Mar 21 0:00 1:00 D
611Rule Iran 1996 only - Sep 21 0:00 0 S
612Rule Iran 1997 1999 - Mar 22 0:00 1:00 D
613Rule Iran 1997 1999 - Sep 22 0:00 0 S
614Rule Iran 2000 only - Mar 21 0:00 1:00 D
615Rule Iran 2000 only - Sep 21 0:00 0 S
616Rule Iran 2001 2003 - Mar 22 0:00 1:00 D
617Rule Iran 2001 2003 - Sep 22 0:00 0 S
618Rule Iran 2004 only - Mar 21 0:00 1:00 D
619Rule Iran 2004 only - Sep 21 0:00 0 S
620Rule Iran 2005 only - Mar 22 0:00 1:00 D
621Rule Iran 2005 only - Sep 22 0:00 0 S
622Rule Iran 2008 only - Mar 21 0:00 1:00 D
623Rule Iran 2008 only - Sep 21 0:00 0 S
624Rule Iran 2009 2011 - Mar 22 0:00 1:00 D
625Rule Iran 2009 2011 - Sep 22 0:00 0 S
626Rule Iran 2012 only - Mar 21 0:00 1:00 D
627Rule Iran 2012 only - Sep 21 0:00 0 S
628Rule Iran 2013 2015 - Mar 22 0:00 1:00 D
629Rule Iran 2013 2015 - Sep 22 0:00 0 S
630Rule Iran 2016 only - Mar 21 0:00 1:00 D
631Rule Iran 2016 only - Sep 21 0:00 0 S
632Rule Iran 2017 2019 - Mar 22 0:00 1:00 D
633Rule Iran 2017 2019 - Sep 22 0:00 0 S
634Rule Iran 2020 only - Mar 21 0:00 1:00 D
635Rule Iran 2020 only - Sep 21 0:00 0 S
636Rule Iran 2021 2023 - Mar 22 0:00 1:00 D
637Rule Iran 2021 2023 - Sep 22 0:00 0 S
638Rule Iran 2024 only - Mar 21 0:00 1:00 D
639Rule Iran 2024 only - Sep 21 0:00 0 S
640Rule Iran 2025 2027 - Mar 22 0:00 1:00 D
641Rule Iran 2025 2027 - Sep 22 0:00 0 S
642Rule Iran 2028 2029 - Mar 21 0:00 1:00 D
643Rule Iran 2028 2029 - Sep 21 0:00 0 S
644Rule Iran 2030 2031 - Mar 22 0:00 1:00 D
645Rule Iran 2030 2031 - Sep 22 0:00 0 S
646Rule Iran 2032 2033 - Mar 21 0:00 1:00 D
647Rule Iran 2032 2033 - Sep 21 0:00 0 S
648Rule Iran 2034 2035 - Mar 22 0:00 1:00 D
649Rule Iran 2034 2035 - Sep 22 0:00 0 S
650Rule Iran 2036 2037 - Mar 21 0:00 1:00 D
651Rule Iran 2036 2037 - Sep 21 0:00 0 S
652# Zone NAME GMTOFF RULES FORMAT [UNTIL]
653Zone Asia/Tehran 3:25:44 - LMT 1916
654 3:25:44 - TMT 1946 # Tehran Mean Time
655 3:30 - IRST 1977 Nov
656 4:00 Iran IR%sT 1979
657 3:30 Iran IR%sT
658
659
660# Iraq
661#
662# From Jonathan Lennox (2000-06-12):
663# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in
664# the U.S. edition) on the Iraqi Kurds contains a paragraph:
665# "The three northern provinces ... switched their clocks this spring and
666# are an hour ahead of Baghdad."
667#
668# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows:
669# In the past, some Kurdish nationalists, as a protest to the Iraqi
670# Government, did not adhere to daylight saving time. They referred
671# to daylight saving as Saddam time. But, as of today, the time zone
672# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq.
673#
674# So we'll ignore the Economist's claim.
675
676# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
677Rule Iraq 1982 only - May 1 0:00 1:00 D
678Rule Iraq 1982 1984 - Oct 1 0:00 0 S
679Rule Iraq 1983 only - Mar 31 0:00 1:00 D
680Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
681Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
682Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
683# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
684# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
685#
686Rule Iraq 1991 max - Apr 1 3:00s 1:00 D
687Rule Iraq 1991 max - Oct 1 3:00s 0 S
688# Zone NAME GMTOFF RULES FORMAT [UNTIL]
689Zone Asia/Baghdad 2:57:40 - LMT 1890
690 2:57:36 - BMT 1918 # Baghdad Mean Time?
691 3:00 - AST 1982 May
692 3:00 Iraq A%sT
693
694
695###############################################################################
696
697# Israel
698
699# From Ephraim Silverberg (2001-01-11):
700#
701# I coined "IST/IDT" circa 1988. Until then there were three
702# different abbreviations in use:
703#
704# JST Jerusalem Standard Time [Danny Braniss, Hebrew University]
705# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion]
706# EEST Eastern Europe Standard Time [used by almost everyone else]
707#
708# Since timezones should be called by country and not capital cities,
709# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe,
710# EEST was equally unacceptable. Since "zonal" was not compatible with
711# any other timezone abbreviation, I felt that 'IST' was the way to go
712# and, indeed, it has received almost universal acceptance in timezone
713# settings in Israeli computers.
714#
715# In any case, I am happy to share timezone abbreviations with India,
716# high on my favorite-country list (and not only because my wife's
717# family is from India).
718
719# From Shanks & Pottenger:
720# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
721Rule Zion 1940 only - Jun 1 0:00 1:00 D
722Rule Zion 1942 1944 - Nov 1 0:00 0 S
723Rule Zion 1943 only - Apr 1 2:00 1:00 D
724Rule Zion 1944 only - Apr 1 0:00 1:00 D
725Rule Zion 1945 only - Apr 16 0:00 1:00 D
726Rule Zion 1945 only - Nov 1 2:00 0 S
727Rule Zion 1946 only - Apr 16 2:00 1:00 D
728Rule Zion 1946 only - Nov 1 0:00 0 S
729Rule Zion 1948 only - May 23 0:00 2:00 DD
730Rule Zion 1948 only - Sep 1 0:00 1:00 D
731Rule Zion 1948 1949 - Nov 1 2:00 0 S
732Rule Zion 1949 only - May 1 0:00 1:00 D
733Rule Zion 1950 only - Apr 16 0:00 1:00 D
734Rule Zion 1950 only - Sep 15 3:00 0 S
735Rule Zion 1951 only - Apr 1 0:00 1:00 D
736Rule Zion 1951 only - Nov 11 3:00 0 S
737Rule Zion 1952 only - Apr 20 2:00 1:00 D
738Rule Zion 1952 only - Oct 19 3:00 0 S
739Rule Zion 1953 only - Apr 12 2:00 1:00 D
740Rule Zion 1953 only - Sep 13 3:00 0 S
741Rule Zion 1954 only - Jun 13 0:00 1:00 D
742Rule Zion 1954 only - Sep 12 0:00 0 S
743Rule Zion 1955 only - Jun 11 2:00 1:00 D
744Rule Zion 1955 only - Sep 11 0:00 0 S
745Rule Zion 1956 only - Jun 3 0:00 1:00 D
746Rule Zion 1956 only - Sep 30 3:00 0 S
747Rule Zion 1957 only - Apr 29 2:00 1:00 D
748Rule Zion 1957 only - Sep 22 0:00 0 S
749Rule Zion 1974 only - Jul 7 0:00 1:00 D
750Rule Zion 1974 only - Oct 13 0:00 0 S
751Rule Zion 1975 only - Apr 20 0:00 1:00 D
752Rule Zion 1975 only - Aug 31 0:00 0 S
753Rule Zion 1985 only - Apr 14 0:00 1:00 D
754Rule Zion 1985 only - Sep 15 0:00 0 S
755Rule Zion 1986 only - May 18 0:00 1:00 D
756Rule Zion 1986 only - Sep 7 0:00 0 S
757Rule Zion 1987 only - Apr 15 0:00 1:00 D
758Rule Zion 1987 only - Sep 13 0:00 0 S
759Rule Zion 1988 only - Apr 9 0:00 1:00 D
760Rule Zion 1988 only - Sep 3 0:00 0 S
761
762# From Ephraim Silverberg
763# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
764# and 2005-02-17):
765
766# According to the Office of the Secretary General of the Ministry of
767# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
768# One thing is entrenched in law, however: that there must be at least 150
769# days of daylight savings time annually. From 1993-1998, the change to
770# daylight savings time was on a Friday morning from midnight IST to
771# 1 a.m IDT; up until 1998, the change back to standard time was on a
772# Saturday night from midnight daylight savings time to 11 p.m. standard
773# time. 1996 is an exception to this rule where the change back to standard
774# time took place on Sunday night instead of Saturday night to avoid
775# conflicts with the Jewish New Year. In 1999, the change to
776# daylight savings time was still on a Friday morning but from
777# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
778# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
779# 1999 only. In the year 2000, the change to daylight savings time was
780# similar to 1999, but although the change back will be on a Friday, it
781# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all
782# changes to/from will take place at 1 a.m. old time, but now there is no
783# rule as to what day of the week it will take place in as the start date
784# (except in 2003) is the night after the Passover Seder (i.e. the eve
785# of the 16th of Nisan in the lunar Hebrew calendar) and the end date
786# (except in 2002) is three nights before Yom Kippur [Day of Atonement]
787# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
788
789# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
790Rule Zion 1989 only - Apr 30 0:00 1:00 D
791Rule Zion 1989 only - Sep 3 0:00 0 S
792Rule Zion 1990 only - Mar 25 0:00 1:00 D
793Rule Zion 1990 only - Aug 26 0:00 0 S
794Rule Zion 1991 only - Mar 24 0:00 1:00 D
795Rule Zion 1991 only - Sep 1 0:00 0 S
796Rule Zion 1992 only - Mar 29 0:00 1:00 D
797Rule Zion 1992 only - Sep 6 0:00 0 S
798Rule Zion 1993 only - Apr 2 0:00 1:00 D
799Rule Zion 1993 only - Sep 5 0:00 0 S
800
801# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
802# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
803# calling the office directly at 972-2-6701447 or 972-2-6701448.
804
805# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
806Rule Zion 1994 only - Apr 1 0:00 1:00 D
807Rule Zion 1994 only - Aug 28 0:00 0 S
808Rule Zion 1995 only - Mar 31 0:00 1:00 D
809Rule Zion 1995 only - Sep 3 0:00 0 S
810
811# The dates for 1996 were determined by the Minister of Interior of the
812# time, Haim Ramon. The official announcement regarding 1996-1998
813# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
814#
815# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
816#
817# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
818#
819# The official announcements for the years 1997-1999 can be viewed at:
820#
821# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
822#
823# where YYYY is the relevant year.
824
825# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
826Rule Zion 1996 only - Mar 15 0:00 1:00 D
827Rule Zion 1996 only - Sep 16 0:00 0 S
828Rule Zion 1997 only - Mar 21 0:00 1:00 D
829Rule Zion 1997 only - Sep 14 0:00 0 S
830Rule Zion 1998 only - Mar 20 0:00 1:00 D
831Rule Zion 1998 only - Sep 6 0:00 0 S
832Rule Zion 1999 only - Apr 2 2:00 1:00 D
833Rule Zion 1999 only - Sep 3 2:00 0 S
834
835# The Knesset Interior Committee has changed the dates for 2000 for
836# the third time in just over a year and have set new dates for the
837# years 2001-2004 as well.
838#
839# The official announcement for the start date of 2000 can be viewed at:
840#
841# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz
842#
843# The official announcement for the end date of 2000 and the dates
844# for the years 2001-2004 can be viewed at:
845#
846# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
847
848# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
849Rule Zion 2000 only - Apr 14 2:00 1:00 D
850Rule Zion 2000 only - Oct 6 1:00 0 S
851Rule Zion 2001 only - Apr 9 1:00 1:00 D
852Rule Zion 2001 only - Sep 24 1:00 0 S
853Rule Zion 2002 only - Mar 29 1:00 1:00 D
854Rule Zion 2002 only - Oct 7 1:00 0 S
855Rule Zion 2003 only - Mar 28 1:00 1:00 D
856Rule Zion 2003 only - Oct 3 1:00 0 S
857Rule Zion 2004 only - Apr 7 1:00 1:00 D
858Rule Zion 2004 only - Sep 22 1:00 0 S
859
860# The proposed law agreed upon by the Knesset Interior Committee on
861# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the
862# last Friday before April 2nd (i.e. the last Friday in March or April
863# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday
864# night _before_ the fast of Yom Kippur.
865#
866# Those who can read Hebrew can view the announcement at:
867#
868# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
869
870# From Paul Eggert (2005-02-22):
871# I used Ephraim Silverberg's dst-israel.el program
872# <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20)
873# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4,
874# to generate the transitions in this list.
875# (I replaced "lastFri" with "Fri>=26" by hand.)
876# The spring transitions below all correspond to the following Rule:
877#
878# Rule Zion 2005 max - Mar Fri>=26 2:00 1:00 D
879#
880# but older zic implementations (e.g., Solaris 8) do not support
881# "Fri>=26" to mean April 1 in years like 2005, so for now we list the
882# springtime transitions explicitly.
883
884# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
885Rule Zion 2005 only - Apr 1 2:00 1:00 D
886Rule Zion 2005 only - Oct 9 2:00 0 S
887Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D
888Rule Zion 2006 only - Oct 1 2:00 0 S
889Rule Zion 2007 only - Sep 16 2:00 0 S
890Rule Zion 2008 only - Oct 5 2:00 0 S
891Rule Zion 2009 only - Sep 27 2:00 0 S
892Rule Zion 2010 only - Sep 12 2:00 0 S
893Rule Zion 2011 only - Apr 1 2:00 1:00 D
894Rule Zion 2011 only - Oct 2 2:00 0 S
895Rule Zion 2012 2015 - Mar Fri>=26 2:00 1:00 D
896Rule Zion 2012 only - Sep 23 2:00 0 S
897Rule Zion 2013 only - Sep 8 2:00 0 S
898Rule Zion 2014 only - Sep 28 2:00 0 S
899Rule Zion 2015 only - Sep 20 2:00 0 S
900Rule Zion 2016 only - Apr 1 2:00 1:00 D
901Rule Zion 2016 only - Oct 9 2:00 0 S
902Rule Zion 2017 2021 - Mar Fri>=26 2:00 1:00 D
903Rule Zion 2017 only - Sep 24 2:00 0 S
904Rule Zion 2018 only - Sep 16 2:00 0 S
905Rule Zion 2019 only - Oct 6 2:00 0 S
906Rule Zion 2020 only - Sep 27 2:00 0 S
907Rule Zion 2021 only - Sep 12 2:00 0 S
908Rule Zion 2022 only - Apr 1 2:00 1:00 D
909Rule Zion 2022 only - Oct 2 2:00 0 S
910Rule Zion 2023 2032 - Mar Fri>=26 2:00 1:00 D
911Rule Zion 2023 only - Sep 24 2:00 0 S
912Rule Zion 2024 only - Oct 6 2:00 0 S
913Rule Zion 2025 only - Sep 28 2:00 0 S
914Rule Zion 2026 only - Sep 20 2:00 0 S
915Rule Zion 2027 only - Oct 10 2:00 0 S
916Rule Zion 2028 only - Sep 24 2:00 0 S
917Rule Zion 2029 only - Sep 16 2:00 0 S
918Rule Zion 2030 only - Oct 6 2:00 0 S
919Rule Zion 2031 only - Sep 21 2:00 0 S
920Rule Zion 2032 only - Sep 12 2:00 0 S
921Rule Zion 2033 only - Apr 1 2:00 1:00 D
922Rule Zion 2033 only - Oct 2 2:00 0 S
923Rule Zion 2034 2037 - Mar Fri>=26 2:00 1:00 D
924Rule Zion 2034 only - Sep 17 2:00 0 S
925Rule Zion 2035 only - Oct 7 2:00 0 S
926Rule Zion 2036 only - Sep 28 2:00 0 S
927Rule Zion 2037 only - Sep 13 2:00 0 S
928
929# Zone NAME GMTOFF RULES FORMAT [UNTIL]
930Zone Asia/Jerusalem 2:20:56 - LMT 1880
931 2:20:40 - JMT 1918 # Jerusalem Mean Time?
932 2:00 Zion I%sT
933
934
935
936###############################################################################
937
938# Japan
939
940# `9:00' and `JST' is from Guy Harris.
941
942# From Paul Eggert (1995-03-06):
943# Today's _Asahi Evening News_ (page 4) reports that Japan had
944# daylight saving between 1948 and 1951, but ``the system was discontinued
945# because the public believed it would lead to longer working hours.''
946
947# From Mayumi Negishi in the 2005-08-10 Japan Times
948# <http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm>:
949# Occupation authorities imposed daylight-saving time on Japan on
950# [1948-05-01].... But lack of prior debate and the execution of
951# daylight-saving time just three days after the bill was passed generated
952# deep hatred of the concept.... The Diet unceremoniously passed a bill to
953# dump the unpopular system in October 1951, less than a month after the San
954# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53%
955# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
956# wanted to keep it.)
957
958# From Paul Eggert (2006-03-22):
959# Shanks & Pottenger write that DST in Japan during those years was as follows:
960# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
961Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
962Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
963Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
964Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
965# but the only locations using it (for birth certificates, presumably, since
966# their audience is astrologers) were US military bases. For now, assume
967# that for most purposes daylight-saving time was observed; otherwise, what
968# would have been the point of the 1951 poll?
969
970# From Hideyuki Suzuki (1998-11-09):
971# 'Tokyo' usually stands for the former location of Tokyo Astronomical
972# Observatory: E 139 44' 40".90 (9h 18m 58s.727), N 35 39' 16".0.
973# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
974# edited by National Astronomical Observatory of Japan....
975# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
976# The law is enacted on 1886-07-07.
977
978# From Hideyuki Suzuki (1998-11-16):
979# The ordinance No. 51 (1886) established "standard time" in Japan,
980# which stands for the time on E 135 degree.
981# In the ordinance No. 167 (1895), "standard time" was renamed to "central
982# standard time". And the same ordinance also established "western standard
983# time", which stands for the time on E 120 degree.... But "western standard
984# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
985# 167, there is no mention regarding for what place western standard time is
986# standard....
987#
988# I wrote "ordinance" above, but I don't know how to translate.
989# In Japanese it's "chokurei", which means ordinance from emperor.
990
991# Shanks & Pottenger claim JST in use since 1896, and that a few
992# places (e.g. Ishigaki) use +0800; go with Suzuki. Guess that all
993# ordinances took effect on Jan 1.
994
995# Zone NAME GMTOFF RULES FORMAT [UNTIL]
996Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
997 9:00 - JST 1896
998 9:00 - CJT 1938
999 9:00 Japan J%sT
1000# Since 1938, all Japanese possessions have been like Asia/Tokyo.
1001
1002# Jordan
1003#
1004# From <a href="http://star.arabia.com/990701/JO9.html">
1005# Jordan Week (1999-07-01) </a> via Steffen Thorsen (1999-09-09):
1006# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
1007# in accordance with the government's decision to implement summer time
1008# all year round.
1009#
1010# From <a href="http://star.arabia.com/990930/JO9.html">
1011# Jordan Week (1999-09-30) </a> via Steffen Thorsen (1999-11-09):
1012# Winter time starts today Thursday, 30 September. Clocks will be turned back
1013# by one hour. This is the latest government decision and it's final!
1014# The decision was taken because of the increase in working hours in
1015# government's departments from six to seven hours.
1016#
1017# From Paul Eggert (2005-11-22):
1018# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
1019#
1020# From Steffen Thorsen (2005-11-23):
1021# For Jordan I have received multiple independent user reports every year
1022# about DST end dates, as the end-rule is different every year.
1023#
1024# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi:
1025# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm
1026# "Jordan will switch to winter time on Friday, October 27".
1027#
1028# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1029Rule Jordan 1973 only - Jun 6 0:00 1:00 S
1030Rule Jordan 1973 1975 - Oct 1 0:00 0 -
1031Rule Jordan 1974 1977 - May 1 0:00 1:00 S
1032Rule Jordan 1976 only - Nov 1 0:00 0 -
1033Rule Jordan 1977 only - Oct 1 0:00 0 -
1034Rule Jordan 1978 only - Apr 30 0:00 1:00 S
1035Rule Jordan 1978 only - Sep 30 0:00 0 -
1036Rule Jordan 1985 only - Apr 1 0:00 1:00 S
1037Rule Jordan 1985 only - Oct 1 0:00 0 -
1038Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
1039Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
1040Rule Jordan 1989 only - May 8 0:00 1:00 S
1041Rule Jordan 1990 only - Apr 27 0:00 1:00 S
1042Rule Jordan 1991 only - Apr 17 0:00 1:00 S
1043Rule Jordan 1991 only - Sep 27 0:00 0 -
1044Rule Jordan 1992 only - Apr 10 0:00 1:00 S
1045Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
1046Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
1047Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
1048Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
1049Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
1050Rule Jordan 1999 2002 - Sep lastThu 0:00s 0 -
1051Rule Jordan 2000 max - Mar lastThu 0:00s 1:00 S
1052Rule Jordan 2003 only - Oct 24 0:00s 0 -
1053Rule Jordan 2004 only - Oct 15 0:00s 0 -
1054Rule Jordan 2005 only - Sep lastFri 0:00s 0 -
1055Rule Jordan 2006 max - Oct lastFri 0:00s 0 -
1056# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1057Zone Asia/Amman 2:23:44 - LMT 1931
1058 2:00 Jordan EE%sT
1059
1060
1061# Kazakhstan
1062
1063# From Paul Eggert (1996-11-22):
1064# Andrew Evtichov (1996-04-13) writes that Kazakhstan
1065# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
1066# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
1067# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
1068# IATA SSIM mentions a third time zone in Kazakhstan.
1069
1070# From Paul Eggert (2006-03-22):
1071# German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses
1072# RussiaAsia rules, instead of switching at 00:00 as the IATA has it.
1073# Go with Shanks & Pottenger, who have them always using RussiaAsia rules.
1074# Also go with the following claims of Shanks & Pottenger:
1075#
1076# - Kazakhstan did not observe DST in 1991.
1077# - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00.
1078# - Oral switched from +5:00 to +4:00 in spring 1989.
1079
1080# <a href="http://www.kazsociety.org.uk/news/2005/03/30.htm">
1081# From Kazakhstan Embassy's News Bulletin #11 (2005-03-21):
1082# </a>
1083# The Government of Kazakhstan passed a resolution March 15 abolishing
1084# daylight saving time citing lack of economic benefits and health
1085# complications coupled with a decrease in productivity.
1086#
1087# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28):
1088# ... what happened was that the former Kazakhstan Eastern time zone
1089# was "blended" with the Central zone. Therefore, Kazakhstan now has
1090# two time zones, and difference between them is one hour. The zone
1091# closer to UTC is the former Western zone (probably still called the
1092# same), encompassing four provinces in the west: Aqtobe, Atyrau,
1093# Mangghystau, and West Kazakhstan. The other zone encompasses
1094# everything else.... I guess that would make Kazakhstan time zones
1095# de jure UTC+5 and UTC+6 respectively.
1096
1097#
1098# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1099#
1100# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
1101Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
1102 5:00 - ALMT 1930 Jun 21 # Alma-Ata Time
1103 6:00 RussiaAsia ALM%sT 1991
1104 6:00 - ALMT 1992
1105 6:00 RussiaAsia ALM%sT 2005 Mar 15
1106 6:00 - ALMT
1107# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.)
1108Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2
1109 4:00 - KIZT 1930 Jun 21 # Kizilorda Time
1110 5:00 - KIZT 1981 Apr 1
1111 5:00 1:00 KIZST 1981 Oct 1
1112 6:00 - KIZT 1982 Apr 1
1113 5:00 RussiaAsia KIZ%sT 1991
1114 5:00 - KIZT 1991 Dec 16 # independence
1115 5:00 - QYZT 1992 Jan 19 2:00
1116 6:00 RussiaAsia QYZ%sT 2005 Mar 15
1117 6:00 - QYZT
1118# Aqtobe (aka Aktobe, formerly Akt'ubinsk)
1119Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
1120 4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time
1121 5:00 - AKTT 1981 Apr 1
1122 5:00 1:00 AKTST 1981 Oct 1
1123 6:00 - AKTT 1982 Apr 1
1124 5:00 RussiaAsia AKT%sT 1991
1125 5:00 - AKTT 1991 Dec 16 # independence
1126 5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time
1127 5:00 - AQTT
1128# Mangghystau
1129# Aqtau was not founded until 1963, but it represents an inhabited region,
1130# so include time stamps before 1963.
1131Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2
1132 4:00 - FORT 1930 Jun 21 # Fort Shevchenko T
1133 5:00 - FORT 1963
1134 5:00 - SHET 1981 Oct 1 # Shevchenko Time
1135 6:00 - SHET 1982 Apr 1
1136 5:00 RussiaAsia SHE%sT 1991
1137 5:00 - SHET 1991 Dec 16 # independence
1138 5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
1139 4:00 RussiaAsia AQT%sT 2005 Mar 15
1140 5:00 - AQTT
1141# West Kazakhstan
1142Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk
1143 4:00 - URAT 1930 Jun 21 # Ural'sk time
1144 5:00 - URAT 1981 Apr 1
1145 5:00 1:00 URAST 1981 Oct 1
1146 6:00 - URAT 1982 Apr 1
1147 5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
1148 4:00 RussiaAsia URA%sT 1991
1149 4:00 - URAT 1991 Dec 16 # independence
1150 4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time
1151 5:00 - ORAT
1152
1153# Kyrgyzstan (Kirgizstan)
1154# Transitions through 1991 are from Shanks & Pottenger.
1155
1156# From Paul Eggert (2005-08-15):
1157# According to an article dated today in the Kyrgyzstan Development Gateway
1158# <http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml>
1159# Kyrgyzstan is canceling the daylight saving time system. I take the article
1160# to mean that they will leave their clocks at 6 hours ahead of UTC.
1161# From Malik Abdugaliev (2005-09-21):
1162# Our government cancels daylight saving time 6th of August 2005.
1163# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
1164
1165# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1166Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S
1167Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 -
1168Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S
1169Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 -
1170# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1171Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
1172 5:00 - FRUT 1930 Jun 21 # Frunze Time
1173 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
1174 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
1175 5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
1176 6:00 - KGT
1177
1178###############################################################################
1179
1180# Korea (North and South)
1181
1182# From Annie I. Bang (2006-07-10) in
1183# <http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp>:
1184# The Ministry of Commerce, Industry and Energy has already
1185# commissioned a research project [to reintroduce DST] and has said
1186# the system may begin as early as 2008.... Korea ran a daylight
1187# saving program from 1949-61 but stopped it during the 1950-53 Korean War.
1188
1189# From Shanks & Pottenger:
1190# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1191Rule ROK 1960 only - May 15 0:00 1:00 D
1192Rule ROK 1960 only - Sep 13 0:00 0 S
1193Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D
1194Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S
1195
1196# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1197Zone Asia/Seoul 8:27:52 - LMT 1890
1198 8:30 - KST 1904 Dec
1199 9:00 - KST 1928
1200 8:30 - KST 1932
1201 9:00 - KST 1954 Mar 21
1202 8:00 ROK K%sT 1961 Aug 10
1203 8:30 - KST 1968 Oct
1204 9:00 ROK K%sT
1205Zone Asia/Pyongyang 8:23:00 - LMT 1890
1206 8:30 - KST 1904 Dec
1207 9:00 - KST 1928
1208 8:30 - KST 1932
1209 9:00 - KST 1954 Mar 21
1210 8:00 - KST 1961 Aug 10
1211 9:00 - KST
1212
1213###############################################################################
1214
1215# Kuwait
1216# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1217# From the Arab Times (2007-03-14):
1218# The Civil Service Commission (CSC) has approved a proposal forwarded
1219# by MP Ahmad Baqer on implementing the daylight saving time (DST) in
1220# Kuwait starting from April until the end of Sept this year, reports Al-Anba.
1221# <http://www.arabtimesonline.com/arabtimes/kuwait/Viewdet.asp?ID=9950>.
1222# From Paul Eggert (2007-03-29):
1223# We don't know the details, or whether the approval means it'll happen,
1224# so for now we assume no DST.
1225Zone Asia/Kuwait 3:11:56 - LMT 1950
1226 3:00 - AST
1227
1228# Laos
1229# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1230Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
1231 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
1232 7:00 - ICT 1912 May
1233 8:00 - ICT 1931 May
1234 7:00 - ICT
1235
1236# Lebanon
1237# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1238Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
1239Rule Lebanon 1920 only - Oct 25 0:00 0 -
1240Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
1241Rule Lebanon 1921 only - Oct 3 0:00 0 -
1242Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
1243Rule Lebanon 1922 only - Oct 8 0:00 0 -
1244Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
1245Rule Lebanon 1923 only - Sep 16 0:00 0 -
1246Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
1247Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
1248Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
1249Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
1250Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
1251Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
1252Rule Lebanon 1978 only - Sep 30 0:00 0 -
1253Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
1254Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
1255Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
1256Rule Lebanon 1989 only - May 10 0:00 1:00 S
1257Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
1258Rule Lebanon 1992 only - Oct 4 0:00 0 -
1259Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
1260Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
1261Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
1262# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1263Zone Asia/Beirut 2:22:00 - LMT 1880
1264 2:00 Lebanon EE%sT
1265
1266# Malaysia
1267# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1268Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer
1269Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
1270#
1271# peninsular Malaysia
1272# The data here are taken from Mok Ly Yng (2003-10-30)
1273# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
1274# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1275Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
1276 6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
1277 7:00 - MALT 1933 Jan 1 # Malaya Time
1278 7:00 0:20 MALST 1936 Jan 1
1279 7:20 - MALT 1941 Sep 1
1280 7:30 - MALT 1942 Feb 16
1281 9:00 - JST 1945 Sep 12
1282 7:30 - MALT 1982 Jan 1
1283 8:00 - MYT # Malaysia Time
1284# Sabah & Sarawak
1285# From Paul Eggert (2006-03-22):
1286# The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982
1287# transition dates are from Mok Ly Yng.
1288# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1289Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
1290 7:30 - BORT 1933 # Borneo Time
1291 8:00 NBorneo BOR%sT 1942 Feb 16
1292 9:00 - JST 1945 Sep 12
1293 8:00 - BORT 1982 Jan 1
1294 8:00 - MYT
1295
1296# Maldives
1297# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1298Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
1299 4:54:00 - MMT 1960 # Male Mean Time
1300 5:00 - MVT # Maldives Time
1301
1302# Mongolia
1303
1304# Shanks & Pottenger say that Mongolia has three time zones, but
1305# usno1995 and the CIA map Standard Time Zones of the World (2005-03)
1306# both say that it has just one.
1307
1308# From Oscar van Vlijmen (1999-12-11):
1309# <a href="http://www.mongoliatourism.gov.mn/general.htm">
1310# General Information Mongolia
1311# </a> (1999-09)
1312# "Time: Mongolia has two time zones. Three westernmost provinces of
1313# Bayan-Ulgii, Uvs, and Hovd are one hour earlier than the capital city, and
1314# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
1315# eight hours."
1316
1317# From Rives McDow (1999-12-13):
1318# Mongolia discontinued the use of daylight savings time in 1999; 1998
1319# being the last year it was implemented. The dates of implementation I am
1320# unsure of, but most probably it was similar to Russia, except for the time
1321# of implementation may have been different....
1322# Some maps in the past have indicated that there was an additional time
1323# zone in the eastern part of Mongolia, including the provinces of Dornod,
1324# Suhbaatar, and possibly Khentij.
1325
1326# From Paul Eggert (1999-12-15):
1327# Naming and spelling is tricky in Mongolia.
1328# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
1329# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
1330# and sometimes Jirgalanta (with variant spellings), but the name Hovd
1331# is good enough for our purposes.
1332
1333# From Rives McDow (2001-05-13):
1334# In addition to Mongolia starting daylight savings as reported earlier
1335# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
1336# there are three time zones.
1337#
1338# Provinces [at 7:00]: Bayan-ulgii, Uvs, Khovd, Zavkhan, Govi-Altai
1339# Provinces [at 8:00]: Khovsgol, Bulgan, Arkhangai, Khentii, Tov,
1340# Bayankhongor, Ovorkhangai, Dundgovi, Dornogovi, Omnogovi
1341# Provinces [at 9:00]: Dornod, Sukhbaatar
1342#
1343# [The province of Selenge is omitted from the above lists.]
1344
1345# From Ganbold Ts., Ulaanbaatar (2004-04-17):
1346# Daylight saving occurs at 02:00 local time last Saturday of March.
1347# It will change back to normal at 02:00 local time last Saturday of
1348# September.... As I remember this rule was changed in 2001.
1349#
1350# From Paul Eggert (2004-04-17):
1351# For now, assume Rives McDow's informant got confused about Friday vs
1352# Saturday, and that his 2001 dates should have 1 added to them.
1353
1354# From Paul Eggert (2005-07-26):
1355# We have wildly conflicting information about Mongolia's time zones.
1356# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
1357# there is only one time zone and that DST is observed, citing Microsoft
1358# Windows XP as the source. Risto Nykanen (2005-05-16) reports that
1359# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST.
1360# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
1361# Washington, DC says there are two time zones, with DST observed.
1362# He also found
1363# <http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&>
1364# which also says that there is DST, and which has a comment by "Toddius"
1365# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones.
1366# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT
1367# and some Eastern provinces are +9 GMT but Sukhbaatar Aimag is SUHK +8.5 GMT.
1368# The SUKH timezone is new this year, it is one of the few things the
1369# parliament passed during the tumultuous winter session."
1370# For now, let's ignore this information, until we have more confirmation.
1371
1372# From Ganbold Ts. (2007-02-26):
1373# Parliament of Mongolia has just changed the daylight-saving rule in February.
1374# They decided not to adopt daylight-saving time....
1375# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742
1376
1377# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1378Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
1379Rule Mongol 1983 only - Oct 1 0:00 0 -
1380# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
1381# but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM
1382# (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998.
1383#
1384# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches
1385# in Choibalsan (more precisely, in Dornod and Sukhbaatar) took place
1386# at 02:00 standard time, not at 00:00 local time as in the rest of
1387# the country. That would be odd, and possibly is a result of their
1388# correction of 02:00 (in the previous edition) not being done correctly
1389# in the latest edition; so ignore it for now.
1390
1391Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S
1392Rule Mongol 1984 1998 - Sep lastSun 0:00 0 -
1393# IATA SSIM (1999-09) says Mongolia no longer observes DST.
1394Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
1395Rule Mongol 2001 2006 - Sep lastSat 2:00 0 -
1396Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S
1397
1398# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1399# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
1400Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
1401 6:00 - HOVT 1978 # Hovd Time
1402 7:00 Mongol HOV%sT
1403# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
1404Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
1405 7:00 - ULAT 1978 # Ulaanbaatar Time
1406 8:00 Mongol ULA%sT
1407# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan,
1408# Choybalsan, Sanbejse, Tchoibalsan
1409Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug
1410 7:00 - ULAT 1978
1411 8:00 - ULAT 1983 Apr
1412 9:00 Mongol CHO%sT # Choibalsan Time
1413
1414# Nepal
1415# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1416Zone Asia/Katmandu 5:41:16 - LMT 1920
1417 5:30 - IST 1986
1418 5:45 - NPT # Nepal Time
1419
1420# Oman
1421# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1422Zone Asia/Muscat 3:54:20 - LMT 1920
1423 4:00 - GST
1424
1425# Pakistan
1426
1427# From Rives McDow (2002-03-13):
1428# I have been advised that Pakistan has decided to adopt dst on a
1429# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
1430# and ending at 00:01 local time October 6, 2002. This is what I was
1431# told, but I believe that the actual time of change may be 00:00; the
1432# 00:01 was to make it clear which day it was on.
1433
1434# From Paul Eggert (2002-03-15):
1435# Jesper Norgaard found this URL:
1436# http://www.pak.gov.pk/public/news/app/app06_dec.htm
1437# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to
1438# advance the clocks by one hour on the night between the first
1439# Saturday and Sunday of April and revert to the original position on
1440# 15th October each year". This agrees with McDow's 04-07 at 00:00,
1441# but disagrees about the October transition, and makes it sound like
1442# it's not on a trial basis. Also, the "between the first Saturday
1443# and Sunday of April" phrase, if taken literally, means that the
1444# transition takes place at 00:00 on the first Sunday on or after 04-02.
1445
1446# From Paul Eggert (2003-02-09):
1447# DAWN <http://www.dawn.com/2002/10/06/top13.htm> reported on 2002-10-05
1448# that 2002 DST ended that day at midnight. Go with McDow for now.
1449
1450# From Steffen Thorsen (2003-03-14):
1451# According to http://www.dawn.com/2003/03/07/top15.htm
1452# there will be no DST in Pakistan this year:
1453#
1454# ISLAMABAD, March 6: Information and Media Development Minister Sheikh
1455# Rashid Ahmed on Thursday said the cabinet had reversed a previous
1456# decision to advance clocks by one hour in summer and put them back by
1457# one hour in winter with the aim of saving light hours and energy.
1458#
1459# The minister told a news conference that the experiment had rather
1460# shown 8 per cent higher consumption of electricity.
1461
1462
1463# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1464Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S
1465Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 -
1466# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1467Zone Asia/Karachi 4:28:12 - LMT 1907
1468 5:30 - IST 1942 Sep
1469 5:30 1:00 IST 1945 Oct 15
1470 5:30 - IST 1951 Sep 30
1471 5:00 - KART 1971 Mar 26 # Karachi Time
1472 5:00 Pakistan PK%sT # Pakistan Time
1473
1474# Palestine
1475
1476# From Amos Shapir (1998-02-15):
1477#
1478# From 1917 until 1948-05-15, all of Palestine, including the parts now
1479# known as the Gaza Strip and the West Bank, was under British rule.
1480# Therefore the rules given for Israel for that period, apply there too...
1481#
1482# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
1483# (except a short occupation by Israel from 1956-11 till 1957-03, but no
1484# time zone was affected then). It was never formally annexed to Egypt,
1485# though.
1486#
1487# The rest of Palestine was under Jordanian rule at that time, formally
1488# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
1489# the country's previous name of "the Hashemite Kingdom of the
1490# Trans-Jordan"). So the rules for Jordan for that time apply. Major
1491# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
1492# East Jerusalem.
1493#
1494# Both areas were occupied by Israel in June 1967, but not annexed (except
1495# for East Jerusalem). They were on Israel time since then; there might
1496# have been a Military Governor's order about time zones, but I'm not aware
1497# of any (such orders may have been issued semi-annually whenever summer
1498# time was in effect, but maybe the legal aspect of time was just neglected).
1499#
1500# The Palestinian Authority was established in 1993, and got hold of most
1501# towns in the West Bank and Gaza by 1995. I know that in order to
1502# demonstrate...independence, they have been switching to
1503# summer time and back on a different schedule than Israel's, but I don't
1504# know when this was started, or what algorithm is used (most likely the
1505# Jordanian one).
1506#
1507# To summarize, the table should probably look something like that:
1508#
1509# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
1510# ------------+-----------+-----------+-----------+-----------
1511# Israel | Zion | Zion | Zion | Zion
1512# West bank | Zion | Jordan | Zion | Jordan
1513# Gaza | Zion | Egypt | Zion | Jordan
1514#
1515# I guess more info may be available from the PA's web page (if/when they
1516# have one).
1517
1518# From Paul Eggert (2006-03-22):
1519# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go
1520# with Shapir and assume that it observed DST from 1940 through 1947,
1521# and that it used Jordanian rules starting in 1996.
1522# We don't yet need a separate entry for the West Bank, since
1523# the only differences between it and Gaza that we know about
1524# occurred before our cutoff date of 1970.
1525# However, as we get more information, we may need to add entries
1526# for parts of the West Bank as they transitioned from Israel's rules
1527# to Palestine's rules. If you have more info about this, please
1528# send it to tz@elsie.nci.nih.gov for incorporation into future editions.
1529
1530# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
1531# forwarded by Ephraim Silverberg:
1532#
1533# Despite the fact that Israel changed over to daylight savings time
1534# last week, the PLO Authority (PA) has decided not to turn its clocks
1535# one-hour forward at this time. As a sign of independence from Israeli rule,
1536# the PA has decided to implement DST in April.
1537
1538# From Paul Eggert (1999-09-20):
1539# Daoud Kuttab writes in
1540# <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html">
1541# Holiday havoc
1542# </a> (Jerusalem Post, 1999-04-22) that
1543# the Palestinian National Authority changed to DST on 1999-04-15.
1544# I vaguely recall that they switch back in October (sorry, forgot the source).
1545# For now, let's assume that the spring switch was at 24:00,
1546# and that they switch at 0:00 on the 3rd Fridays of April and October.
1547
1548# From Paul Eggert (2005-11-22):
1549# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
1550
1551# From Steffen Thorsen (2005-11-23):
1552# A user from Gaza reported that Gaza made the change early because of
1553# the Ramadan. Next year Ramadan will be even earlier, so I think
1554# there is a good chance next year's end date will be around two weeks
1555# earlier--the same goes for Jordan.
1556
1557# From Steffen Thorsen (2006-08-17):
1558# I was informed by a user in Bethlehem that in Bethlehem it started the
1559# same day as Israel, and after checking with other users in the area, I
1560# was informed that they started DST one day after Israel. I was not
1561# able to find any authoritative sources at the time, nor details if
1562# Gaza changed as well, but presumed Gaza to follow the same rules as
1563# the West Bank.
1564
1565# From Steffen Thorsen (2006-09-26):
1566# according to the Palestine News Network (2006-09-19):
1567# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5
1568# > The Council of Ministers announced that this year its winter schedule
1569# > will begin early, as of midnight Thursday. It is also time to turn
1570# > back the clocks for winter. Friday will begin an hour late this week.
1571# I guess it is likely that next year's date will be moved as well,
1572# because of the Ramadan.
1573
1574# From Jesper Norgaard Welen (2007-09-18):
1575# According to Steffen Thorsen's web site the Gaza Strip and the rest of the
1576# Palestinian territories left DST early on 13.th. of September at 2:00.
1577
1578# From Paul Eggert (2007-09-20):
1579# My understanding is that Gaza and the West Bank disagree even over when
1580# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit
1581# surprised if they agreed about DST. But for now, assume they agree.
1582# For lack of better information, predict that future changes will be
1583# the 2nd Thursday of September at 02:00.
1584
1585# The rules for Egypt are stolen from the `africa' file.
1586# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1587Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
1588Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
1589Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
1590Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
1591Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
1592Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
1593
1594Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S
1595Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 -
1596Rule Palestine 2004 only - Oct 1 1:00 0 -
1597Rule Palestine 2005 only - Oct 4 2:00 0 -
1598Rule Palestine 2006 max - Apr 1 0:00 1:00 S
1599Rule Palestine 2006 only - Sep 22 0:00 0 -
1600Rule Palestine 2007 max - Sep Thu>=8 2:00 0 -
1601
1602# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1603Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
1604 2:00 Zion EET 1948 May 15
1605 2:00 EgyptAsia EE%sT 1967 Jun 5
1606 2:00 Zion I%sT 1996
1607 2:00 Jordan EE%sT 1999
1608 2:00 Palestine EE%sT
1609
1610# Paracel Is
1611# no information
1612
1613# Philippines
1614# On 1844-08-16, Narciso Claveria, governor-general of the
1615# Philippines, issued a proclamation announcing that 1844-12-30 was to
1616# be immediately followed by 1845-01-01. Robert H. van Gent has a
1617# transcript of the decree in <http://www.phys.uu.nl/~vgent/idl/idl.htm>.
1618# The rest of the data are from Shanks & Pottenger.
1619
1620# From Paul Eggert (2006-04-25):
1621# Tomorrow's Manila Standard reports that the Philippines Department of
1622# Trade and Industry is considering adopting DST this June when the
1623# rainy season begins. See
1624# <http://www.manilastandardtoday.com/?page=politics02_april26_2006>.
1625# For now, we'll ignore this, since it's not definite and we lack details.
1626#
1627# From Jesper Norgaard Welen (2006-04-26):
1628# ... claims that Philippines had DST last time in 1990:
1629# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
1630# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
1631# but no details]
1632
1633# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1634Rule Phil 1936 only - Nov 1 0:00 1:00 S
1635Rule Phil 1937 only - Feb 1 0:00 0 -
1636Rule Phil 1954 only - Apr 12 0:00 1:00 S
1637Rule Phil 1954 only - Jul 1 0:00 0 -
1638Rule Phil 1978 only - Mar 22 0:00 1:00 S
1639Rule Phil 1978 only - Sep 21 0:00 0 -
1640# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1641Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
1642 8:04:00 - LMT 1899 May 11
1643 8:00 Phil PH%sT 1942 May
1644 9:00 - JST 1944 Nov
1645 8:00 Phil PH%sT
1646
1647# Qatar
1648# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1649Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
1650 4:00 - GST 1972 Jun
1651 3:00 - AST
1652
1653# Saudi Arabia
1654# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1655Zone Asia/Riyadh 3:06:52 - LMT 1950
1656 3:00 - AST
1657
1658# Singapore
1659# The data here are taken from Mok Ly Yng (2003-10-30)
1660# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
1661# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1662Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
1663 6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
1664 7:00 - MALT 1933 Jan 1 # Malaya Time
1665 7:00 0:20 MALST 1936 Jan 1
1666 7:20 - MALT 1941 Sep 1
1667 7:30 - MALT 1942 Feb 16
1668 9:00 - JST 1945 Sep 12
1669 7:30 - MALT 1965 Aug 9 # independence
1670 7:30 - SGT 1982 Jan 1 # Singapore Time
1671 8:00 - SGT
1672
1673# Spratly Is
1674# no information
1675
1676# Sri Lanka
1677# From Paul Eggert (1996-09-03):
1678# "Sri Lanka advances clock by an hour to avoid blackout"
1679# (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
1680# no longer available as of 1999-08-17)
1681# reported ``the country's standard time will be put forward by one hour at
1682# midnight Friday (1830 GMT) `in the light of the present power crisis'.''
1683#
1684# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
1685# by Shamindra in
1686# <a href="news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net">
1687# Daily News - Hot News Section (1996-10-26)
1688# </a>:
1689# With effect from 12.30 a.m. on 26th October 1996
1690# Sri Lanka will be six (06) hours ahead of GMT.
1691
1692# From Jesper Norgaard Welen (2006-04-14), quoting Sri Lanka News Online
1693# <http://news.sinhalaya.com/wmview.php?ArtID=11002> (2006-04-13):
1694# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes)
1695# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006).
1696
1697# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in:
1698# <http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML>
1699# [The Tamil Tigers] never accepted the original 1996 time change and simply
1700# kept their clocks set five and a half hours ahead of Greenwich Mean
1701# Time (GMT), in line with neighbor India.
1702# From Paul Eggert (2006-04-18):
1703# People who live in regions under Tamil control can use TZ='Asia/Calcutta',
1704# as that zone has agreed with the Tamil areas since our cutoff date of 1970.
1705
1706# From K Sethu (2006-04-25):
1707# I think the abbreviation LKT originated from the world of computers at
1708# the time of or subsequent to the time zone changes by SL Government
1709# twice in 1996 and probably SL Government or its standardization
1710# agencies never declared an abbreviation as a national standard.
1711#
1712# I recollect before the recent change the government annoucemments
1713# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka
1714# Time and no mention was made about the abbreviation.
1715#
1716# If we look at Sri Lanka Department of Government's "Official News
1717# Website of Sri Lanka" ... http://www.news.lk/ we can see that they
1718# use SLT as abbreviation in time stamp at the beginning of each news
1719# item....
1720#
1721# Within Sri Lanka I think LKT is well known among computer users and
1722# adminsitrators. In my opinion SLT may not be a good choice because the
1723# nation's largest telcom / internet operator Sri Lanka Telcom is well
1724# known by that abbreviation - simply as SLT (there IP domains are
1725# slt.lk and sltnet.lk).
1726#
1727# But if indeed our government has adopted SLT as standard abbreviation
1728# (that we have not known so far) then it is better that it be used for
1729# all computers.
1730
1731# From Paul Eggert (2006-04-25):
1732# One possibility is that we wait for a bit for the dust to settle down
1733# and then see what people actually say in practice.
1734
1735# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1736Zone Asia/Colombo 5:19:24 - LMT 1880
1737 5:19:32 - MMT 1906 # Moratuwa Mean Time
1738 5:30 - IST 1942 Jan 5
1739 5:30 0:30 IHST 1942 Sep
1740 5:30 1:00 IST 1945 Oct 16 2:00
1741 5:30 - IST 1996 May 25 0:00
1742 6:30 - LKT 1996 Oct 26 0:30
1743 6:00 - LKT 2006 Apr 15 0:30
1744 5:30 - IST
1745
1746# Syria
1747# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1748Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
1749Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
1750Rule Syria 1962 only - Apr 29 2:00 1:00 S
1751Rule Syria 1962 only - Oct 1 2:00 0 -
1752Rule Syria 1963 1965 - May 1 2:00 1:00 S
1753Rule Syria 1963 only - Sep 30 2:00 0 -
1754Rule Syria 1964 only - Oct 1 2:00 0 -
1755Rule Syria 1965 only - Sep 30 2:00 0 -
1756Rule Syria 1966 only - Apr 24 2:00 1:00 S
1757Rule Syria 1966 1976 - Oct 1 2:00 0 -
1758Rule Syria 1967 1978 - May 1 2:00 1:00 S
1759Rule Syria 1977 1978 - Sep 1 2:00 0 -
1760Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
1761Rule Syria 1983 1984 - Oct 1 2:00 0 -
1762Rule Syria 1986 only - Feb 16 2:00 1:00 S
1763Rule Syria 1986 only - Oct 9 2:00 0 -
1764Rule Syria 1987 only - Mar 1 2:00 1:00 S
1765Rule Syria 1987 1988 - Oct 31 2:00 0 -
1766Rule Syria 1988 only - Mar 15 2:00 1:00 S
1767Rule Syria 1989 only - Mar 31 2:00 1:00 S
1768Rule Syria 1989 only - Oct 1 2:00 0 -
1769Rule Syria 1990 only - Apr 1 2:00 1:00 S
1770Rule Syria 1990 only - Sep 30 2:00 0 -
1771Rule Syria 1991 only - Apr 1 0:00 1:00 S
1772Rule Syria 1991 1992 - Oct 1 0:00 0 -
1773Rule Syria 1992 only - Apr 8 0:00 1:00 S
1774Rule Syria 1993 only - Mar 26 0:00 1:00 S
1775Rule Syria 1993 only - Sep 25 0:00 0 -
1776# IATA SSIM (1998-02) says 1998-04-02;
1777# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
1778# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
1779# (2006) says 2006-03-31 and 2006-09-22;
1780# for now ignore all these claims and go with Shanks & Pottenger,
1781# except for the 2006-09-22 claim (which seems right for Ramadan).
1782Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
1783Rule Syria 1994 2005 - Oct 1 0:00 0 -
1784Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
1785Rule Syria 1999 2006 - Apr 1 0:00 1:00 S
1786# From Stephen Colebourne (2006-09-18):
1787# According to IATA data, Syria will change DST on 21st September [21:00 UTC]
1788# this year [only].... This is probably related to Ramadan, like Egypt.
1789Rule Syria 2006 only - Sep 22 0:00 0 -
1790# From Paul Eggert (2007-03-29):
1791# Today the AP reported "Syria will switch to summertime at midnight Thursday."
1792# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
1793# For lack of better info, assume the rule changed to "last Friday in March"
1794# this year.
1795Rule Syria 2007 max - Mar lastFri 0:00 1:00 S
1796Rule Syria 2007 max - Oct 1 0:00 0 -
1797# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1798Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
1799 2:00 Syria EE%sT
1800
1801# Tajikistan
1802# From Shanks & Pottenger.
1803# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1804Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
1805 5:00 - DUST 1930 Jun 21 # Dushanbe Time
1806 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
1807 5:00 1:00 DUSST 1991 Sep 9 2:00s
1808 5:00 - TJT # Tajikistan Time
1809
1810# Thailand
1811# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1812Zone Asia/Bangkok 6:42:04 - LMT 1880
1813 6:42:04 - BMT 1920 Apr # Bangkok Mean Time
1814 7:00 - ICT
1815
1816# Turkmenistan
1817# From Shanks & Pottenger.
1818# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1819Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad
1820 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
1821 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
1822 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
1823 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
1824 5:00 - TMT
1825
1826# United Arab Emirates
1827# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1828Zone Asia/Dubai 3:41:12 - LMT 1920
1829 4:00 - GST
1830
1831# Uzbekistan
1832# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1833Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
1834 4:00 - SAMT 1930 Jun 21 # Samarkand Time
1835 5:00 - SAMT 1981 Apr 1
1836 5:00 1:00 SAMST 1981 Oct 1
1837 6:00 - TAST 1982 Apr 1 # Tashkent Time
1838 5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence
1839 5:00 RussiaAsia UZ%sT 1992
1840 5:00 - UZT
1841Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
1842 5:00 - TAST 1930 Jun 21 # Tashkent Time
1843 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00
1844 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
1845 5:00 RussiaAsia UZ%sT 1992
1846 5:00 - UZT
1847
1848# Vietnam
1849
1850# From Paul Eggert (1993-11-18):
1851# Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
1852# We'll stick with the traditional name for now.
1853
1854# From Shanks & Pottenger:
1855# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1856Zone Asia/Saigon 7:06:40 - LMT 1906 Jun 9
1857 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
1858 7:00 - ICT 1912 May
1859 8:00 - ICT 1931 May
1860 7:00 - ICT
1861
1862# Yemen
1863# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1864Zone Asia/Aden 3:00:48 - LMT 1950
1865 3:00 - AST