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a7123f0e 1# @(#)asia 7.48
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2
3# This data is by no means authoritative; if you think you know better,
4# go ahead and edit the file (and please send any changes to
5# tz@elsie.nci.nih.gov for general use in the future).
6
b9f1792a 7# From Paul Eggert <eggert@twinsun.com> (1999-03-22):
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8#
9# A good source for time zone historical data outside the U.S. is
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10# Thomas G. Shanks, The International Atlas (4th edition),
11# San Diego: ACS Publications, Inc. (1995).
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12# Except where otherwise noted, it is the source for the data below.
13#
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14# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
15# for recent time zone data is the International Air Transport
16# Association's Standard Schedules Information Manual (IATA SSIM),
17# published semiannually. Law sent in several helpful summaries
18# of the IATA's data after 1990.
19#
20# Except where otherwise noted, Shanks is the source for entries through 1990,
21# and IATA SSIM is the source for entries after 1990.
22#
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23# Another source occasionally used is Edward W. Whitman, World Time Differences,
24# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
25# I found in the UCLA library.
26#
27# A reliable and entertaining source about time zones is
38c097ca 28# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
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29#
30# I invented the abbreviations marked `*' in the following table;
31# the rest are from earlier versions of this file, or from other sources.
32# Corrections are welcome!
33# std dst
34# LMT Local Mean Time
569c558c 35# 2:00 EET EEST Eastern European Time
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36# 2:00 IST IDT Israel
37# 3:00 AST ADT Arabia*
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38# 4:00 GST Gulf*
39# 5:30 IST India
28f540f4 40# 7:00 ICT Indochina*
569c558c 41# 8:00 CST China
b21c5832 42# 9:00 CJT Central Japanese Time (1896/1937)*
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43# 9:00 JST Japan
44# 9:00 KST Korea
45# 9:30 CST (Australian) Central Standard Time
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46#
47# See the `europe' file for Russia and Turkey in Asia.
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48
49# From Guy Harris:
50# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
51# additional information from Tom Yap, Sun Microsystems Intercontinental
52# Technical Support (including a page from the Official Airline Guide -
53# Worldwide Edition). The names for time zones are guesses.
54
55###############################################################################
56
8a523922 57# These rules are stolen from the `europe' file.
28f540f4 58# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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59Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
60Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
61Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
62Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
63Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
64Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
65Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
66Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
67Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
68Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
69Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
70Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
71Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
72Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
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73
74# Afghanistan
75# Zone NAME GMTOFF RULES FORMAT [UNTIL]
76Zone Asia/Kabul 4:36:48 - LMT 1890
569c558c 77 4:00 - AFT 1945
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78 4:30 - AFT
79
80# Armenia
a7123f0e 81# From Paul Eggert (1999-09-27):
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82# Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991,
83# but usno1995 has Armenia at 4:00 (with DST), and Edgar Der-Danieliantz
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84# <edd@AIC.NET> reported (1996-05-04) that Yerevan probably wouldn't use DST
85# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
86# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
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87# but started switching at 3:00s in 1998. IATA SSIM (1999-02) reports
88# that they switch one day later in 2001 (i.e. on Mondays).
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89# What a mess! We guess Yerevan DST stayed in sync with Moscow between 1990
90# and 1995, did not use DST in 1996, and started using DST again in 1997.
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91# Zone NAME GMTOFF RULES FORMAT [UNTIL]
92Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
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93 3:00 - YERT 1957 Mar # Yerevan Time
94 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
95 3:00 1:00 YERST 1991 Sep 23 # independence
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96 3:00 1:00 AMST 1991 Sep 29 2:00s # Armenia Time
97 3:00 - AMT 1992 Jan 19 2:00s
98 4:00 RussiaAsia AM%sT 1996
99 4:00 - AMT 1997
100 4:00 RussiaAsia AM%sT
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101
102# Azerbaijan
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103# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
104Rule Azer 1997 max - Mar lastSun 1:00 1:00 S
105Rule Azer 1997 max - Oct lastSun 1:00 0 -
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106# Zone NAME GMTOFF RULES FORMAT [UNTIL]
107Zone Asia/Baku 3:19:24 - LMT 1924 May 2
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108 3:00 - BAKT 1957 Mar # Baku Time
109 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
110 3:00 1:00 BAKST 1991 Aug 30 # independence
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111 3:00 RussiaAsia AZ%sT 1992 Sep lastSun 2:00s
112 4:00 - AZT 1996 # Azerbaijan time
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113 4:00 EUAsia AZ%sT 1997
114 4:00 Azer AZ%sT
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115
116# Bahrain
117# Zone NAME GMTOFF RULES FORMAT [UNTIL]
118Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al-Manamah
119 4:00 - GST 1972 Jun
120 3:00 - AST
121
122# Bangladesh
123# Zone NAME GMTOFF RULES FORMAT [UNTIL]
124Zone Asia/Dacca 6:01:40 - LMT 1890
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125 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
126 6:30 - BURT 1942 May 15 # Burma Time
28f540f4 127 5:30 - IST 1942 Sep
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128 6:30 - BURT 1951 Sep 30
129 6:00 - DACT 1971 Mar 26 # Dacca Time
130 6:00 - BDT # Bangladesh Time
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131
132# Bhutan
133# Zone NAME GMTOFF RULES FORMAT [UNTIL]
134Zone Asia/Thimbu 5:58:36 - LMT 1947 Aug 15
135 5:30 - IST 1987 Oct
569c558c 136 6:00 - BTT # Bhutan Time
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137
138# British Indian Ocean Territory
139# From Whitman:
140# Zone NAME GMTOFF RULES FORMAT [UNTIL]
569c558c 141Zone Indian/Chagos 5:00 - IOT # BIOT Time
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142
143# Brunei
144# Zone NAME GMTOFF RULES FORMAT [UNTIL]
145Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
146 7:30 - BNT 1933
147 8:00 - BNT
148
72d8cdf0 149# Burma / Myanmar
28f540f4 150# Zone NAME GMTOFF RULES FORMAT [UNTIL]
dfe1754a 151Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
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152 6:24:36 - RMT 1920 # Rangoon Mean Time?
153 6:30 - BURT 1942 May # Burma Time
28f540f4 154 9:00 - JST 1945 May 3
569c558c 155 6:30 - MMT # Myanmar Time
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156
157# Cambodia
158# Zone NAME GMTOFF RULES FORMAT [UNTIL]
159Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
569c558c 160 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
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161 7:00 - ICT 1912 May
162 8:00 - ICT 1931 May
163 7:00 - ICT
164
ae828bc6 165# China
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166
167# From Guy Harris:
168# People's Republic of China. Yes, they really have only one time zone.
169
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170# From Bob Devine (1988-01-28):
171# No they don't. See TIME mag, 1986-02-17 p.52. Even though
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172# China is across 4 physical time zones, before Feb 1, 1986 only the
173# Peking (Bejing) time zone was recognized. Since that date, China
174# has two of 'em -- Peking's and Urumqi (named after the capital of
175# the Xinjiang Uighur Autonomous Region). I don't know about DST for it.
176#
177# . . .I just deleted the DST table and this editor makes it too
178# painful to suck in another copy.. So, here is what I have for
179# DST start/end dates for Peking's time zone (info from AP):
180#
181# 1986 May 4 - Sept 14
182# 1987 mid-April - ??
183
b5791037 184# From U. S. Naval Observatory (1989-01-19):
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185# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
186# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
187
72d8cdf0 188# From Paul Eggert <eggert@twinsun.com> (1995-12-19):
569c558c 189# Shanks writes that China has had a single time zone since 1980 May 1,
72d8cdf0 190# observing summer DST from 1986 through 1991; this contradicts Devine's
28f540f4 191# note about Time magazine, though apparently _something_ happened in 1986.
72d8cdf0 192# Go with Shanks for now. I made up names for the other pre-1980 time zones.
28f540f4 193
2b79b6d5 194# From Shanks (1995):
28f540f4 195# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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196Rule Shang 1940 only - Jun 3 0:00 1:00 D
197Rule Shang 1940 1941 - Oct 1 0:00 0 S
198Rule Shang 1941 only - Mar 16 0:00 1:00 D
199Rule PRC 1949 only - Jan 1 0:00 0 S
200Rule PRC 1986 only - May 4 0:00 1:00 D
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201Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
202Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
203# Zone NAME GMTOFF RULES FORMAT [UNTIL]
204Zone Asia/Harbin 8:26:44 - LMT 1928
569c558c 205 8:30 - HART 1932 Mar # Harbin Time
72d8cdf0 206 8:00 - CST 1940
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207 9:00 - HART 1966 May
208 8:30 - HART 1980 May
72d8cdf0 209 8:00 PRC C%sT
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210Zone Asia/Shanghai 8:05:52 - LMT 1928
211 8:00 Shang C%sT 1949
212 8:00 PRC C%sT
72d8cdf0 213Zone Asia/Chungking 7:06:20 - LMT 1928
569c558c 214 7:00 - CHUT 1980 May # Chungking Time
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215 8:00 PRC C%sT
216Zone Asia/Urumqi 5:50:20 - LMT 1928
569c558c 217 6:00 - URUT 1980 May # Urumqi Time
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218 8:00 PRC C%sT
219Zone Asia/Kashgar 5:03:56 - LMT 1928
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220 5:30 - KAST 1940 # Kashgar Time
221 5:00 - KAST 1980 May
72d8cdf0 222 8:00 PRC C%sT
28f540f4 223# Hong Kong
28f540f4 224# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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225Rule HK 1946 only - Apr 20 3:30 1:00 S
226Rule HK 1946 only - Dec 1 3:30 0 -
227Rule HK 1947 only - Apr 13 3:30 1:00 S
228Rule HK 1947 only - Dec 30 3:30 0 -
229Rule HK 1948 only - May 2 3:30 1:00 S
230Rule HK 1948 1952 - Oct lastSun 3:30 0 -
231Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
232Rule HK 1953 only - Nov 1 3:30 0 -
233Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
234Rule HK 1954 only - Oct 31 3:30 0 -
235Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
236Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S
237Rule HK 1965 1977 - Oct Sun>=16 3:30 0 -
238Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
239Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
240# Zone NAME GMTOFF RULES FORMAT [UNTIL]
241Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
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242 8:00 HK HK%sT 1997 Jul 1 # return to China
243 8:00 PRC C%sT
28f540f4 244
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245
246###############################################################################
247
ae828bc6 248# Taiwan
907a1bac 249
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250# Shanks (1995) writes that Taiwan observed DST during 1945, when it
251# was still controlled by Japan. This is hard to believe, but we don't
252# have any other information.
253
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254# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
255Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
256Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
257Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
258Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
259Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
260Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
261Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
262Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
263Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
264Rule Taiwan 1980 only - Jun 30 0:00 1:00 D
265Rule Taiwan 1980 only - Sep 30 0:00 0 S
266# Zone NAME GMTOFF RULES FORMAT [UNTIL]
267Zone Asia/Taipei 8:06:00 - LMT 1896
268 8:00 Taiwan C%sT
269
28f540f4 270# Macao
28f540f4 271# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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272Rule Macao 1961 1962 - Mar Sun>=16 3:30 1:00 S
273Rule Macao 1961 1964 - Nov Sun>=1 3:30 0 -
274Rule Macao 1963 only - Mar Sun>=16 0:00 1:00 S
275Rule Macao 1964 only - Mar Sun>=16 3:30 1:00 S
276Rule Macao 1965 only - Mar Sun>=16 0:00 1:00 S
277Rule Macao 1965 only - Oct 31 0:00 0 -
278Rule Macao 1966 1971 - Apr Sun>=16 3:30 1:00 S
279Rule Macao 1966 1971 - Oct Sun>=16 3:30 0 -
280Rule Macao 1972 1974 - Apr Sun>=15 0:00 1:00 S
281Rule Macao 1972 1973 - Oct Sun>=15 0:00 0 -
282Rule Macao 1974 1977 - Oct Sun>=15 3:30 0 -
283Rule Macao 1975 1977 - Apr Sun>=15 3:30 1:00 S
284Rule Macao 1978 1980 - Apr Sun>=15 0:00 1:00 S
285Rule Macao 1978 1980 - Oct Sun>=15 0:00 0 -
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286# Zone NAME GMTOFF RULES FORMAT [UNTIL]
287Zone Asia/Macao 7:34:20 - LMT 1912
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288 8:00 Macao MO%sT 1999 Dec 20 # return to China
289 8:00 PRC C%sT
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290
291
292###############################################################################
293
294# Cyprus
295# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
569c558c 296Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
28f540f4 297Rule Cyprus 1975 only - Oct 12 0:00 0 -
569c558c 298Rule Cyprus 1976 only - May 15 0:00 1:00 S
28f540f4 299Rule Cyprus 1976 only - Oct 11 0:00 0 -
569c558c 300Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
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301Rule Cyprus 1977 only - Sep 25 0:00 0 -
302Rule Cyprus 1978 only - Oct 2 0:00 0 -
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303Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
304Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
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305# Zone NAME GMTOFF RULES FORMAT [UNTIL]
306Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
b21c5832 307 2:00 Cyprus EE%sT 1998 Sep
c2965673 308 2:00 EUAsia EE%sT
b21c5832 309# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
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310
311# Georgia
312# From Paul Eggert <eggert@twinsun.com> (1994-11-19):
313# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
314# an hour recently, due to a law proposed by Zurab Murvanidze,
315# an MP who went on a hunger strike for 11 days to force discussion about it!
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316# We have no details, but we'll guess they didn't move the clocks back in fall.
317#
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318# From Mathew Englander <mathew@io.org>, quoting AP (1996-10-23 13:05-04):
319# Instead of putting back clocks at the end of October, Georgia
320# will stay on daylight savings time this winter to save energy,
321# President Eduard Shevardnadze decreed Wednesday.
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322# Zone NAME GMTOFF RULES FORMAT [UNTIL]
323Zone Asia/Tbilisi 2:59:16 - LMT 1880
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324 2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time
325 3:00 - TBIT 1957 Mar # Tbilisi Time
326 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
327 3:00 1:00 TBIST 1991 Apr 9 # independence
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328 3:00 RussiaAsia GE%sT 1992 # Georgia Time
329 3:00 E-EurAsia GE%sT 1994 Sep lastSun
330 4:00 E-EurAsia GE%sT 1996 Oct lastSun
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331 4:00 1:00 GEST 1997 Mar lastSun
332 4:00 E-EurAsia GE%sT
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333
334# India
335# Zone NAME GMTOFF RULES FORMAT [UNTIL]
336Zone Asia/Calcutta 5:53:28 - LMT 1880
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337 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
338 6:30 - BURT 1942 May 15 # Burma Time
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339 5:30 - IST 1942 Sep
340 5:30 1:00 IST 1945 Oct 15
341 5:30 - IST
342# The following are like Asia/Calcutta:
343# Andaman Is
344# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
345# Nicobar Is
346
347# Indonesia
348# Zone NAME GMTOFF RULES FORMAT [UNTIL]
349Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
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350 7:07:12 - JMT 1924 Jan 1 0:13 # Jakarta MT
351 7:20 - JAVT 1932 Nov # Java Time
352 7:30 - JAVT 1942 Mar 23
28f540f4 353 9:00 - JST 1945 Aug
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354 7:30 - JAVT 1948 May
355 8:00 - JAVT 1950 May
356 7:30 - JAVT 1964
357 7:00 - JAVT
28f540f4 358Zone Asia/Ujung_Pandang 7:57:36 - LMT 1920
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359 7:57:36 - MMT 1932 Nov # Macassar MT
360 8:00 - BORT 1942 Feb 9 # Borneo Time
28f540f4 361 9:00 - JST 1945 Aug
569c558c 362 8:00 - BORT
28f540f4 363Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
569c558c 364 9:00 - JAYT 1944 # Jayapura Time
28f540f4 365 9:30 - CST 1964
569c558c 366 9:00 - JAYT
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367
368# Iran
a7123f0e 369# From Paul Eggert (1999-09-27), following up a suggestion by Rich Wales:
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370# Ahmea Alavi in
371# <a href="http://tehran.stanford.edu/Iran_Lib/Calendar/taghveem.txt">
a7123f0e 372# TAGHVEEM (1993-07-12)
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373# </a>
374# writes ``Daylight saving time in Iran starts from the first day
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375# of Farvardin and ends the first day of Mehr.'' This disagrees with the SSIM:
376#
377# DST start DST end
378# year SSIM Alavi SSIM Alavi
379# 1991 05-03!= 03-21 09-20!= 09-23
380# 1992 03-22!= 03-21 09-23 09-23
381# 1993 03-21 03-21 09-23 09-23
382# 1994 03-21 03-21 09-22!= 09-23
383# 1995 03-21 03-21 09-22!= 09-23
384# 1996 03-21!= 03-20 09-21!= 09-22
385# 1997 03-21 03-21 09-21!= 09-23
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386# 1998 03-21 03-21 09-21!= 09-23
387# 1999 03-22!= 03-21 09-22!= 09-23
388# 2000 03-21!= 03-20 09-21!= 09-22
389# 2001 03-17!= 03-21 09-19!= 09-23
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390#
391# Go with Alavi starting with 1992.
392# I used Ed Reingold's cal-persia in GNU Emacs 19.34 to compute Persian dates.
393# The Persian calendar is based on the sun, and dates after around 2050
394# are approximate; stop after 2037 when 32-bit time_t's overflow.
395#
28f540f4 396# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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397Rule Iran 1978 1980 - Mar 21 0:00 1:00 S
398Rule Iran 1978 only - Oct 21 0:00 0 -
399Rule Iran 1979 only - Sep 19 0:00 0 -
400Rule Iran 1980 only - Sep 23 0:00 0 -
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401Rule Iran 1991 only - May 3 0:00s 1:00 S
402Rule Iran 1991 only - Sep 20 0:00s 0 -
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403Rule Iran 1992 1995 - Mar 21 0:00 1:00 S
404Rule Iran 1992 1995 - Sep 23 0:00 0 -
405Rule Iran 1996 only - Mar 20 0:00 1:00 S
406Rule Iran 1996 only - Sep 22 0:00 0 -
407Rule Iran 1997 1999 - Mar 21 0:00 1:00 S
408Rule Iran 1997 1999 - Sep 23 0:00 0 -
409Rule Iran 2000 only - Mar 20 0:00 1:00 S
410Rule Iran 2000 only - Sep 22 0:00 0 -
411Rule Iran 2001 2003 - Mar 21 0:00 1:00 S
412Rule Iran 2001 2003 - Sep 23 0:00 0 -
413Rule Iran 2004 only - Mar 20 0:00 1:00 S
414Rule Iran 2004 only - Sep 22 0:00 0 -
415Rule Iran 2005 2007 - Mar 21 0:00 1:00 S
416Rule Iran 2005 2007 - Sep 23 0:00 0 -
417Rule Iran 2008 only - Mar 20 0:00 1:00 S
418Rule Iran 2008 only - Sep 22 0:00 0 -
419Rule Iran 2009 2011 - Mar 21 0:00 1:00 S
420Rule Iran 2009 2011 - Sep 23 0:00 0 -
421Rule Iran 2012 only - Mar 20 0:00 1:00 S
422Rule Iran 2012 only - Sep 22 0:00 0 -
423Rule Iran 2013 2015 - Mar 21 0:00 1:00 S
424Rule Iran 2013 2015 - Sep 23 0:00 0 -
425Rule Iran 2016 only - Mar 20 0:00 1:00 S
426Rule Iran 2016 only - Sep 22 0:00 0 -
427Rule Iran 2017 2019 - Mar 21 0:00 1:00 S
428Rule Iran 2017 2019 - Sep 23 0:00 0 -
429Rule Iran 2020 only - Mar 20 0:00 1:00 S
430Rule Iran 2020 only - Sep 22 0:00 0 -
431Rule Iran 2021 2023 - Mar 21 0:00 1:00 S
432Rule Iran 2021 2023 - Sep 23 0:00 0 -
433Rule Iran 2024 2025 - Mar 20 0:00 1:00 S
434Rule Iran 2024 2025 - Sep 22 0:00 0 -
435Rule Iran 2026 2027 - Mar 21 0:00 1:00 S
436Rule Iran 2026 2027 - Sep 23 0:00 0 -
437Rule Iran 2028 2029 - Mar 20 0:00 1:00 S
438Rule Iran 2028 2029 - Sep 22 0:00 0 -
439Rule Iran 2030 2031 - Mar 21 0:00 1:00 S
440Rule Iran 2030 2031 - Sep 23 0:00 0 -
441Rule Iran 2032 2033 - Mar 20 0:00 1:00 S
442Rule Iran 2032 2033 - Sep 22 0:00 0 -
443Rule Iran 2034 2035 - Mar 21 0:00 1:00 S
444Rule Iran 2034 2035 - Sep 23 0:00 0 -
445Rule Iran 2036 2037 - Mar 20 0:00 1:00 S
446Rule Iran 2036 2037 - Sep 22 0:00 0 -
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447# Zone NAME GMTOFF RULES FORMAT [UNTIL]
448Zone Asia/Tehran 3:25:44 - LMT 1916
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449 3:25:44 - TMT 1946 # Tehran Mean Time
450 3:30 - IRT 1977 Nov
451 4:00 Iran IR%sT 1979
452 3:30 Iran IR%sT
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453
454# Iraq
455# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
456Rule Iraq 1982 only - May 1 0:00 1:00 D
457Rule Iraq 1982 1984 - Oct 1 0:00 0 S
458Rule Iraq 1983 only - Mar 31 0:00 1:00 D
459Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
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460Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
461Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
462# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
463Rule Iraq 1991 max - Apr 1 3:00s 1:00 D
464Rule Iraq 1991 max - Oct 1 3:00s 0 D
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465# Zone NAME GMTOFF RULES FORMAT [UNTIL]
466Zone Asia/Baghdad 2:57:40 - LMT 1890
569c558c 467 2:57:36 - BMT 1918 # Baghdad Mean Time?
28f540f4
RM
468 3:00 - AST 1982 May
469 3:00 Iraq A%sT
470
471
472###############################################################################
473
474# Israel
475
b5791037 476# From U. S. Naval Observatory (1989-01-19):
28f540f4
RM
477# ISRAEL 2 H AHEAD OF UTC
478# ISRAEL 3 H AHEAD OF UTC APR 10 - SEP 3
479
2b79b6d5 480# From Shanks (1995):
28f540f4 481# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
28f540f4
RM
482Rule Zion 1940 only - Jun 1 0:00 1:00 D
483Rule Zion 1942 1944 - Nov 1 0:00 0 S
484Rule Zion 1943 only - Apr 1 2:00 1:00 D
485Rule Zion 1944 only - Apr 1 0:00 1:00 D
486Rule Zion 1945 only - Apr 16 0:00 1:00 D
487Rule Zion 1945 only - Nov 1 2:00 0 S
488Rule Zion 1946 only - Apr 16 2:00 1:00 D
489Rule Zion 1946 only - Nov 1 0:00 0 S
490Rule Zion 1948 only - May 23 0:00 2:00 DD
491Rule Zion 1948 only - Sep 1 0:00 1:00 D
492Rule Zion 1948 1949 - Nov 1 2:00 0 S
493Rule Zion 1949 only - May 1 0:00 1:00 D
494Rule Zion 1950 only - Apr 16 0:00 1:00 D
495Rule Zion 1950 only - Sep 15 3:00 0 S
496Rule Zion 1951 only - Apr 1 0:00 1:00 D
497Rule Zion 1951 only - Nov 11 3:00 0 S
498Rule Zion 1952 only - Apr 20 2:00 1:00 D
499Rule Zion 1952 only - Oct 19 3:00 0 S
500Rule Zion 1953 only - Apr 12 2:00 1:00 D
501Rule Zion 1953 only - Sep 13 3:00 0 S
502Rule Zion 1954 only - Jun 13 0:00 1:00 D
503Rule Zion 1954 only - Sep 12 0:00 0 S
504Rule Zion 1955 only - Jun 11 2:00 1:00 D
505Rule Zion 1955 only - Sep 11 0:00 0 S
506Rule Zion 1956 only - Jun 3 0:00 1:00 D
507Rule Zion 1956 only - Sep 30 3:00 0 S
508Rule Zion 1957 only - Apr 29 2:00 1:00 D
509Rule Zion 1957 only - Sep 22 0:00 0 S
510Rule Zion 1974 only - Jul 7 0:00 1:00 D
511Rule Zion 1974 only - Oct 13 0:00 0 S
512Rule Zion 1975 only - Apr 20 0:00 1:00 D
513Rule Zion 1975 only - Aug 31 0:00 0 S
514Rule Zion 1985 only - Apr 14 0:00 1:00 D
515Rule Zion 1985 only - Sep 15 0:00 0 S
516Rule Zion 1986 only - May 18 0:00 1:00 D
517Rule Zion 1986 only - Sep 7 0:00 0 S
518Rule Zion 1987 only - Apr 15 0:00 1:00 D
519Rule Zion 1987 only - Sep 13 0:00 0 S
520Rule Zion 1988 only - Apr 9 0:00 1:00 D
521Rule Zion 1988 only - Sep 3 0:00 0 S
28f540f4 522
74015205 523# From Ephraim Silverberg <ephraim@cs.huji.ac.il>
b21c5832 524# (1997-03-04, 1998-03-16 and 1998-12-28):
4cca6b86 525
28f540f4
RM
526# According to the Office of the Secretary General of the Ministry of
527# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
b21c5832
AS
528# One thing is entrenched in law, however: that there must be at least 150
529# days of daylight savings time annually. From 1993-1998, the change to
530# daylight savings time was on a Friday morning from midnight IST to
531# 1 a.m IDT; up until 1998, the change back to standard time was on a
532# Saturday night from midnight daylight savings time to 11 p.m. standard
533# time. 1996 is an exception to this rule where the change back to standard
534# time took place on Sunday night instead of Saturday night to avoid
535# conflicts with the Jewish New Year. Starting in 1999, the change to
536# daylight savings time will still be on a Friday morning but from
537# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
538# will now also be on a Friday morning from 2 a.m. IDT to 1 a.m. IST.
28f540f4 539
5929563f
UD
540# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
541Rule Zion 1989 only - Apr 30 0:00 1:00 D
542Rule Zion 1989 only - Sep 3 0:00 0 S
543Rule Zion 1990 only - Mar 25 0:00 1:00 D
544Rule Zion 1990 only - Aug 26 0:00 0 S
545Rule Zion 1991 only - Mar 24 0:00 1:00 D
546Rule Zion 1991 only - Sep 1 0:00 0 S
547Rule Zion 1992 only - Mar 29 0:00 1:00 D
548Rule Zion 1992 only - Sep 6 0:00 0 S
549Rule Zion 1993 only - Apr 2 0:00 1:00 D
550Rule Zion 1993 only - Sep 5 0:00 0 S
28f540f4 551
a5570f62
RM
552# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
553# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
4cca6b86 554# calling the office directly at 972-2-6701447 or 972-2-6701448.
28f540f4 555
4cca6b86 556# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
5929563f
UD
557Rule Zion 1994 only - Apr 1 0:00 1:00 D
558Rule Zion 1994 only - Aug 28 0:00 0 S
559Rule Zion 1995 only - Mar 31 0:00 1:00 D
560Rule Zion 1995 only - Sep 3 0:00 0 S
4cca6b86
UD
561
562# The dates for 1996 were determined by the Minister of Interior of the
563# time, Haim Ramon. The official announcement regarding 1996-1998
74015205 564# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
a5570f62 565#
4cca6b86 566# ftp://ftp.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
a5570f62 567#
74015205 568# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
4cca6b86 569#
b9f1792a 570# The official announcements for the years 1997-1999 can be viewed at:
74015205 571#
b9f1792a 572# ftp://ftp.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
ff152e3f 573#
b9f1792a 574# where YYYY is the relevant year.
4cca6b86 575
5929563f
UD
576# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
577Rule Zion 1996 only - Mar 15 0:00 1:00 D
578Rule Zion 1996 only - Sep 16 0:00 0 S
579Rule Zion 1997 only - Mar 21 0:00 1:00 D
580Rule Zion 1997 only - Sep 14 0:00 0 S
581Rule Zion 1998 only - Mar 20 0:00 1:00 D
74015205 582Rule Zion 1998 only - Sep 6 0:00 0 S
b21c5832
AS
583Rule Zion 1999 only - Apr 2 2:00 1:00 D
584Rule Zion 1999 only - Sep 3 2:00 0 S
5929563f 585
b21c5832
AS
586# Due to imminent elections in 1999, there are no dates for the year 2000
587# and beyond. There was a move to legislate the DST rules in Israel, but
588# due to the government's fall, it most likely won't be brought to the Knesset
589# for first reading before the elections and will probably be altered by the
590# newly elected government.
2b79b6d5 591
b21c5832
AS
592# From Paul Eggert (1999-01-30):
593# Here are guesses for rules after 1999.
5929563f 594# They are probably wrong, but they are more likely than no DST at all.
4cca6b86 595# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
b21c5832
AS
596Rule Zion 2000 max - Apr Fri>=1 2:00 1:00 D
597Rule Zion 2000 max - Sep Fri>=1 2:00 0 S
28f540f4
RM
598
599# Zone NAME GMTOFF RULES FORMAT [UNTIL]
01cdeca0 600Zone Asia/Jerusalem 2:20:56 - LMT 1880
569c558c 601 2:20:40 - JMT 1918 # Jerusalem Mean Time?
28f540f4
RM
602 2:00 Zion I%sT
603
604
605###############################################################################
606
607# Japan
608
609# `9:00' and `JST' is from Guy Harris.
610
3d61b63c
RM
611# From Paul Eggert <eggert@twinsun.com> (1995-03-06):
612# Today's _Asahi Evening News_ (page 4) reports that Japan had
613# daylight saving between 1948 and 1951, but ``the system was discontinued
614# because the public believed it would lead to longer working hours.''
615# Shanks writes that daylight saving in Japan during those years was as follows:
616# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
617#Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
618#Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
619#Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
620#Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
621# but the only locations using it were US military bases.
622# We go with Shanks and omit daylight saving in those years for Asia/Tokyo.
28f540f4 623
b21c5832
AS
624# From Hideyuki Suzuki (1998-11-09):
625# 'Tokyo' usually stands for the former location of Tokyo Astronomical
626# Observatory: E 139 44' 40".90 (9h 18m 58s.727), N 35 39' 16".0.
627# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
628# edited by National Astronomical Observatory of Japan....
629# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
630# The law is enacted on 1886-07-07.
631
632# From Hideyuki Suzuki (1998-11-16):
633# The ordinance No. 51 (1886) established "standard time" in Japan,
634# which stands for the time on E 135 degree.
635# In the ordinance No. 167 (1895), "standard time" was renamed to "central
636# standard time". And the same ordinance also established "western standard
637# time", which stands for the time on E 120 degree.... But "western standard
638# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
639# 167, there is no mention regarding for what place western standard time is
640# standard....
641#
642# I wrote "ordinance" above, but I don't know how to translate.
643# In Japanese it's "chokurei", which means ordinance from emperor.
644
645# Shanks claims JST in use since 1896, and that a few places (e.g. Ishigaki)
646# use +0800; go with Suzuki. Guess that all ordinances took effect on Jan 1.
647
28f540f4 648# Zone NAME GMTOFF RULES FORMAT [UNTIL]
b21c5832
AS
649Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
650 9:00 - JST 1896
651 9:00 - CJT 1938
28f540f4 652 9:00 - JST
b21c5832 653# Since 1938, all Japanese possessions have been like Asia/Tokyo.
28f540f4
RM
654
655# Jordan
a7123f0e
UD
656#
657# From
658# <a href="http://star.arabia.com/990701/JO9.html">
659# Jordan Week (1999-07-01)
660# </a> via Steffen Thorsen (1999-09-09):
661# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
662# in accordance with the government's decision to implement summer time
663# all year round.
38c097ca 664#
28f540f4 665# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
569c558c 666Rule Jordan 1973 only - Jun 6 0:00 1:00 S
28f540f4 667Rule Jordan 1973 1975 - Oct 1 0:00 0 -
569c558c 668Rule Jordan 1974 1977 - May 1 0:00 1:00 S
28f540f4
RM
669Rule Jordan 1976 only - Nov 1 0:00 0 -
670Rule Jordan 1977 only - Oct 1 0:00 0 -
569c558c 671Rule Jordan 1978 only - Apr 30 0:00 1:00 S
28f540f4 672Rule Jordan 1978 only - Sep 30 0:00 0 -
569c558c 673Rule Jordan 1985 only - Apr 1 0:00 1:00 S
28f540f4 674Rule Jordan 1985 only - Oct 1 0:00 0 -
569c558c 675Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
28f540f4 676Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
569c558c
UD
677Rule Jordan 1989 only - May 8 0:00 1:00 S
678Rule Jordan 1990 only - Apr 27 0:00 1:00 S
8a523922 679Rule Jordan 1991 only - Apr 17 0:00 1:00 S
28f540f4 680Rule Jordan 1991 only - Sep 27 0:00 0 -
8a523922
UD
681Rule Jordan 1992 only - Apr 10 0:00 1:00 S
682Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
38c097ca 683Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
8a523922 684Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
38c097ca 685Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
28f540f4
RM
686# Zone NAME GMTOFF RULES FORMAT [UNTIL]
687Zone Asia/Amman 2:23:44 - LMT 1931
a7123f0e
UD
688 2:00 Jordan EE%sT 1999 Jul
689 2:00 1:00 EEST
28f540f4
RM
690
691# Kazakhstan
8a523922 692# From Paul Eggert (1996-11-22):
dfe1754a 693# Andrew Evtichov <evti@chevron.com> (1996-04-13) writes that Kazakhstan
8a523922
UD
694# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
695# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
696# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
697# IATA SSIM mentions a third time zone in Kazakhstan.
698#
28f540f4 699# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2b79b6d5 700Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
569c558c
UD
701 5:00 - ALMT 1957 Mar # Alma-Ata Time
702 6:00 RussiaAsia ALM%sT 1991 Mar 31 2:00s
703 5:00 1:00 ALMST 1991 Sep 29 2:00s
704 5:00 - ALMT 1992 Jan 19 2:00s
8a523922
UD
705 6:00 E-EurAsia ALM%sT
706Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
707 4:00 - AKT 1957 Mar # Aktyubinsk Time
708 5:00 RussiaAsia AK%sT 1991 Mar 31 2:00s
709 4:00 1:00 AKTST 1991 Sep 29 2:00s
710 4:00 - AQTT 1992 Jan 19 2:00s # Aqtobe Time
711 5:00 E-EurAsia AQT%sT
712Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 # or Aktau
569c558c
UD
713 4:00 - SHET 1957 Mar # Fort Shevchenko Time
714 5:00 RussiaAsia SHE%sT 1991 Mar 31 2:00s
8a523922
UD
715 4:00 1:00 AQTST 1991 Sep 29 2:00s
716 4:00 - AQTT 1992 Jan 19 2:00s # Aqtau Time
717 5:00 E-EurAsia AQT%sT 1995 Sep lastSun
718 4:00 E-EurAsia AQT%sT
28f540f4
RM
719
720# Kirgizstan
8a523922 721# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2b79b6d5
UD
722Rule Kirgiz 1992 1996 - Apr Sun>=7 0:00 1:00 S
723Rule Kirgiz 1991 1996 - Sep lastSun 0:00 0 -
724Rule Kirgiz 1997 max - Mar lastSun 2:30 1:00 S
725Rule Kirgiz 1997 max - Oct lastSun 2:30 0 -
28f540f4
RM
726# Zone NAME GMTOFF RULES FORMAT [UNTIL]
727Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
2b79b6d5 728 5:00 - FRUT 1930 Jun 21 # Frunze Time
569c558c
UD
729 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
730 5:00 1:00 FRUST 1991 Aug 31 # independence
8a523922 731 5:00 Kirgiz KG%sT # Kirgizstan Time
28f540f4
RM
732
733###############################################################################
734
ae828bc6 735# Korea (North and South)
28f540f4
RM
736
737# From Guy Harris:
738# According to someone at the Korean Times in San Francisco,
739# Daylight Savings Time was not observed until 1987. He did not know
740# at what time of day DST starts or ends.
741
2b79b6d5 742# From Shanks (1995):
28f540f4
RM
743# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
744Rule ROK 1960 only - May 15 0:00 1:00 D
745Rule ROK 1960 only - Sep 13 0:00 0 S
746Rule ROK 1987 1988 - May Sun<=14 0:00 1:00 D
747Rule ROK 1987 1988 - Oct Sun<=14 0:00 0 S
748
749# Zone NAME GMTOFF RULES FORMAT [UNTIL]
750Zone Asia/Seoul 8:27:52 - LMT 1890
751 8:30 - KST 1904 Dec
752 9:00 - KST 1928
753 8:30 - KST 1932
754 9:00 - KST 1954 Mar 21
755 8:00 ROK K%sT 1961 Aug 10
756 8:30 - KST 1968 Oct
757 9:00 ROK K%sT
758Zone Asia/Pyongyang 8:23:00 - LMT 1890
759 8:30 - KST 1904 Dec
760 9:00 - KST 1928
761 8:30 - KST 1932
762 9:00 - KST 1954 Mar 21
763 8:00 - KST 1961 Aug 10
764 9:00 - KST
765
766###############################################################################
767
768# Kuwait
769# Zone NAME GMTOFF RULES FORMAT [UNTIL]
770Zone Asia/Kuwait 3:11:56 - LMT 1950
771 3:00 - AST
772
773# Laos
774# Zone NAME GMTOFF RULES FORMAT [UNTIL]
775Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9
569c558c 776 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
28f540f4
RM
777 7:00 - ICT 1912 May
778 8:00 - ICT 1931 May
779 7:00 - ICT
780
781# Lebanon
782# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
569c558c 783Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
28f540f4 784Rule Lebanon 1920 only - Oct 25 0:00 0 -
569c558c 785Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
28f540f4 786Rule Lebanon 1921 only - Oct 3 0:00 0 -
569c558c 787Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
28f540f4 788Rule Lebanon 1922 only - Oct 8 0:00 0 -
569c558c 789Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
28f540f4 790Rule Lebanon 1923 only - Sep 16 0:00 0 -
569c558c 791Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
28f540f4 792Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
569c558c 793Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
28f540f4 794Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
569c558c
UD
795Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
796Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
28f540f4 797Rule Lebanon 1978 only - Sep 30 0:00 0 -
569c558c 798Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
8a523922 799Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
569c558c
UD
800Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
801Rule Lebanon 1989 only - May 10 0:00 1:00 S
8a523922
UD
802Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
803Rule Lebanon 1992 only - Oct 4 0:00 0 -
804Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
a7123f0e
UD
805Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
806Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
28f540f4
RM
807# Zone NAME GMTOFF RULES FORMAT [UNTIL]
808Zone Asia/Beirut 2:22:00 - LMT 1880
569c558c 809 2:00 Lebanon EE%sT
28f540f4
RM
810
811# Malaysia
569c558c
UD
812# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
813Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS
814Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
28f540f4
RM
815# Zone NAME GMTOFF RULES FORMAT [UNTIL]
816Zone Asia/Kuala_Lumpur 6:46:48 - LMT 1880
569c558c
UD
817 6:55:24 - SMT 1905 Jun # Singapore Mean Time
818 7:00 - MALT 1933 # Malaya Time
819 7:20 - MALT 1942 Feb 15
28f540f4 820 9:00 - JST 1945 Sep 2
569c558c
UD
821 7:20 - MALT 1950
822 7:30 - MALT 1982 May
823 8:00 - MYT # Malaysia Time
824Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
825 7:30 - BORT 1933 # Borneo Time
826 8:00 NBorneo BOR%sT 1942
827 9:00 - JST 1945 Sep 2
828 8:00 - BORT 1982 May
829 8:00 - MYT
28f540f4
RM
830
831# Maldives
832# Zone NAME GMTOFF RULES FORMAT [UNTIL]
569c558c
UD
833Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
834 4:54:00 - MMT 1960 # Male Mean Time
835 5:00 - MVT # Maldives Time
28f540f4
RM
836
837# Mongolia
ae828bc6 838# Shanks says that Mongolia has three time zones, but usno1995 and the CIA map
ae828bc6 839# Standard Time Zones of the World (1997-01)
74015205 840# </a>
dfe1754a 841# both say that it has just one.
28f540f4
RM
842# Let's comment out the western and eastern Mongolian time zones
843# till we know what their principal towns are.
844# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
569c558c
UD
845Rule Mongol 1981 1984 - Apr 1 0:00 1:00 S
846Rule Mongol 1981 1984 - Oct 1 0:00 0 -
8a523922
UD
847Rule Mongol 1985 1990 - Mar lastSun 2:00 1:00 S
848Rule Mongol 1985 1990 - Sep lastSun 3:00 0 -
849Rule Mongol 1991 max - Mar lastSun 0:00 1:00 S
850Rule Mongol 1991 1995 - Sep lastSun 0:00 0 -
5929563f
UD
851Rule Mongol 1996 only - Oct Fri>=22 0:00 0 -
852Rule Mongol 1997 max - Sep lastSun 0:00 0 -
28f540f4
RM
853# Zone NAME GMTOFF RULES FORMAT [UNTIL]
854#Zone Asia/Dariv 6:14:32 - LMT 1905 Aug
569c558c
UD
855# 6:00 - DART 1978 # Dariv Time
856# 7:00 Mongol DAR%sT
28f540f4 857Zone Asia/Ulan_Bator 7:07:32 - LMT 1905 Aug
569c558c
UD
858 7:00 - ULAT 1978 # Ulan Bator Time
859 8:00 Mongol ULA%sT
28f540f4 860#Zone Asia/Baruun-Urt 7:33:00 - LMT 1905 Aug
569c558c
UD
861# 8:00 - BART 1978 # Baruun-Urt Time
862# 9:00 Mongol BAR%sT
28f540f4
RM
863
864# Nepal
865# Zone NAME GMTOFF RULES FORMAT [UNTIL]
866Zone Asia/Katmandu 5:41:16 - LMT 1920
867 5:30 - IST 1986
569c558c 868 5:45 - NPT # Nepal Time
28f540f4
RM
869
870# Oman
871# Zone NAME GMTOFF RULES FORMAT [UNTIL]
872Zone Asia/Muscat 3:54:20 - LMT 1920
873 4:00 - GST
874
875# Pakistan
876# Zone NAME GMTOFF RULES FORMAT [UNTIL]
877Zone Asia/Karachi 4:28:12 - LMT 1907
878 5:30 - IST 1942 Sep
879 5:30 1:00 IST 1945 Oct 15
880 5:30 - IST 1951 Sep 30
569c558c
UD
881 5:00 - KART 1971 Mar 26 # Karachi Time
882 5:00 - PKT # Pakistan Time
28f540f4
RM
883
884# Palestine
ae828bc6
UD
885
886# From Amos Shapir <amos@nsof.co.il> (1998-02-15):
887#
888# From 1917 until 1948-05-15, all of Palestine, including the parts now
889# known as the Gaza Strip and the West Bank, was under British rule.
890# Therefore the rules given for Israel for that period, apply there too...
891#
892# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
893# (except a short occupation by Israel from 1956-11 till 1957-03, but no
894# time zone was affected then). It was never formally annexed to Egypt,
895# though.
896#
897# The rest of Palestine was under Jordanian rule at that time, formally
898# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
899# the country's previous name of "the Hashemite Kingdom of the
900# Trans-Jordan"). So the rules for Jordan for that time apply. Major
901# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
902# East Jerusalem.
903#
904# Both areas were occupied by Israel in June 1967, but not annexed (except
905# for East Jerusalem). They were on Israel time since then; there might
906# have been a Military Governor's order about time zones, but I'm not aware
907# of any (such orders may have been issued semi-annually whenever summer
908# time was in effect, but maybe the legal aspect of time was just neglected).
909#
910# The Palestinian Authority was established in 1993, and got hold of most
911# towns in the West Bank and Gaza by 1995. I know that in order to
912# demonstrate...independence, they have been switching to
913# summer time and back on a different schedule than Israel's, but I don't
914# know when this was started, or what algorithm is used (most likely the
915# Jordanian one).
916#
917# To summarize, the table should probably look something like that:
918#
919# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
920# ------------+-----------+-----------+-----------+-----------
921# Israel | Zion | Zion | Zion | Zion
922# West bank | Zion | Jordan | Zion | Jordan
923# Gaza | Zion | Egypt | Zion | Jordan
924#
925# I guess more info may be available from the PA's web page (if/when they
926# have one).
927
928# From Paul Eggert (1998-02-25):
929# Shanks writes that Gaza did not observe DST until 1957, but we'll go
930# with Shapir and assume that it observed DST from 1940 through 1947,
931# and that it used Jordanian rules starting in 1996.
932# We don't yet need a separate entry for the West Bank, since
933# the only differences between it and Gaza that we know about
934# occurred before our cutoff date of 1970.
935# However, as we get more information, we may need to add entries
936# for parts of the West Bank as they transitioned from Israel's rules
937# to Palestine's rules. If you have more info about this, please
938# send it to tz@elsie.nci.nih.gov for incorporation into future editions.
939
f962d792
UD
940# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
941# forwarded by Ephraim Silverberg:
942#
943# Despite the fact that Israel changed over to daylight savings time
944# last week, the PLO Authority (PA) has decided not to turn its clocks
945# one-hour forward at this time. As a sign of independence from Israeli rule,
946# the PA has decided to implement DST in April.
947
a7123f0e
UD
948# From Paul Eggert (1999-09-20):
949# Daoud Kuttab writes in
950# <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html">
951# Holiday havoc
952# </a> (Jerusalem Post, 1999-04-22) that
953# the Palestinian National Authority changed to DST on 1999-04-15.
954# I vaguely recall that they switch back in October (sorry, forgot the source).
955# For now, let's assume that the spring switch was at 24:00,
956# and that they switch at 0:00 on the 3rd Fridays of April and October.
957
958# The rules for Egypt are stolen from the `africa' file.
28f540f4 959# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
569c558c 960Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
dfe1754a 961Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
569c558c 962Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
8a523922 963Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
dfe1754a 964Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
8a523922 965Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
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UD
966
967Rule Palestine 1999 max - Apr Fri>=15 0:00 1:00 S
968Rule Palestine 1999 max - Oct Fri>=15 0:00 0 -
969
28f540f4
RM
970# Zone NAME GMTOFF RULES FORMAT [UNTIL]
971Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
ae828bc6
UD
972 2:00 Zion EET 1948 May 15
973 2:00 EgyptAsia EE%sT 1967 Jun 5
974 2:00 Zion I%sT 1996
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UD
975 2:00 Jordan EE%sT 1999
976 2:00 Palestine EE%sT
28f540f4 977
72d8cdf0
RM
978# Paracel Is
979# no information
980
28f540f4 981# Philippines
38c097ca 982# Howse writes (p 153) that until 1844 the Philippines kept American date.
28f540f4
RM
983# The rest of this data is from Shanks.
984# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
569c558c
UD
985Rule Phil 1936 only - Nov 1 0:00 1:00 S
986Rule Phil 1937 only - Feb 1 0:00 0 -
987Rule Phil 1954 only - Apr 12 0:00 1:00 S
988Rule Phil 1954 only - Jul 1 0:00 0 -
989Rule Phil 1978 only - Mar 22 0:00 1:00 S
990Rule Phil 1978 only - Sep 21 0:00 0 -
28f540f4
RM
991# Zone NAME GMTOFF RULES FORMAT [UNTIL]
992Zone Asia/Manila -15:56:00 - LMT 1844
993 8:04:00 - LMT 1899 May 11
569c558c 994 8:00 Phil PH%sT 1942 May
28f540f4 995 9:00 - JST 1944 Nov
569c558c 996 8:00 Phil PH%sT
28f540f4
RM
997
998# Qatar
999# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1000Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah
1001 4:00 - GST 1972 Jun
1002 3:00 - AST
1003
1004# Saudi Arabia
1005# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1006Zone Asia/Riyadh 3:06:52 - LMT 1950
1007 3:00 - AST
1008
1009# Singapore
1010# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1011Zone Asia/Singapore 6:55:24 - LMT 1880
569c558c
UD
1012 6:55:24 - SMT 1905 Jun # Singapore Mean Time
1013 7:00 - MALT 1933 # Malaya Time
1014 7:20 - MALT 1942 Feb 15
28f540f4 1015 9:00 - JST 1945 Sep 2
569c558c
UD
1016 7:20 - MALT 1950
1017 7:30 - MALT 1965 Aug 9 # independence
1018 7:30 - SGT 1982 May # Singapore Time
28f540f4
RM
1019 8:00 - SGT
1020
72d8cdf0
RM
1021# Spratly Is
1022# no information
1023
28f540f4 1024# Sri Lanka
569c558c 1025# From Paul Eggert (1996-09-03):
38c097ca
UD
1026# "Sri Lanka advances clock by an hour to avoid blackout"
1027# (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
1028# no longer available as of 1999-08-17)
569c558c
UD
1029# reported ``the country's standard time will be put forward by one hour at
1030# midnight Friday (1830 GMT) `in the light of the present power crisis'.''
2b79b6d5 1031# Transitions before 1996 are from Shanks (1995).
5929563f
UD
1032#
1033# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
ae828bc6 1034# by Shamindra in
74015205 1035# <a href="news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net">
ae828bc6
UD
1036# Daily News - Hot News Section (1996-10-26)
1037# </a>:
5929563f
UD
1038# With effect from 12.30 a.m. on 26th October 1996
1039# Sri Lanka will be six (06) hours ahead of GMT.
569c558c 1040
28f540f4
RM
1041# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1042Zone Asia/Colombo 5:19:24 - LMT 1880
2b79b6d5 1043 5:19:32 - MMT 1906 # Moratuwa Mean Time
28f540f4
RM
1044 5:30 - IST 1942 Jan 5
1045 5:30 0:30 IHST 1942 Sep
1046 5:30 1:00 IST 1945 Oct 16 2:00
569c558c 1047 5:30 - IST 1996 May 25 0:00
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UD
1048 6:30 - LKT 1996 Oct 26 0:30
1049 6:00 - LKT
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RM
1050
1051# Syria
1052# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
569c558c 1053Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
28f540f4 1054Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
569c558c 1055Rule Syria 1962 only - Apr 29 2:00 1:00 S
28f540f4 1056Rule Syria 1962 only - Oct 1 2:00 0 -
569c558c 1057Rule Syria 1963 1965 - May 1 2:00 1:00 S
28f540f4
RM
1058Rule Syria 1963 only - Sep 30 2:00 0 -
1059Rule Syria 1964 only - Oct 1 2:00 0 -
1060Rule Syria 1965 only - Sep 30 2:00 0 -
569c558c 1061Rule Syria 1966 only - Apr 24 2:00 1:00 S
28f540f4 1062Rule Syria 1966 1976 - Oct 1 2:00 0 -
569c558c 1063Rule Syria 1967 1978 - May 1 2:00 1:00 S
28f540f4 1064Rule Syria 1977 1978 - Sep 1 2:00 0 -
569c558c 1065Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
28f540f4 1066Rule Syria 1983 1984 - Oct 1 2:00 0 -
569c558c 1067Rule Syria 1986 only - Feb 16 2:00 1:00 S
28f540f4 1068Rule Syria 1986 only - Oct 9 2:00 0 -
569c558c 1069Rule Syria 1987 only - Mar 1 2:00 1:00 S
28f540f4 1070Rule Syria 1987 1988 - Oct 31 2:00 0 -
569c558c
UD
1071Rule Syria 1988 only - Mar 15 2:00 1:00 S
1072Rule Syria 1989 only - Mar 31 2:00 1:00 S
28f540f4 1073Rule Syria 1989 only - Oct 1 2:00 0 -
8a523922
UD
1074Rule Syria 1990 only - Apr 1 2:00 1:00 S
1075Rule Syria 1990 only - Sep 30 2:00 0 -
1076Rule Syria 1991 only - Apr 1 0:00 1:00 S
1077Rule Syria 1991 1992 - Oct 1 0:00 0 -
1078Rule Syria 1992 only - Apr 8 0:00 1:00 S
1079Rule Syria 1993 only - Mar 26 0:00 1:00 S
1080Rule Syria 1993 only - Sep 25 0:00 0 -
b21c5832 1081# IATA SSIM (1996-09) says 1997-03-31; (1998-02) says 1998-04-02;
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UD
1082# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
1083# 2000-04-02, and 2001-04-02; ignore all these claims for now.
8a523922
UD
1084Rule Syria 1994 max - Apr 1 0:00 1:00 S
1085Rule Syria 1994 max - Oct 1 0:00 0 -
28f540f4
RM
1086# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1087Zone Asia/Damascus 2:25:12 - LMT 1920
569c558c 1088 2:00 Syria EE%sT
28f540f4
RM
1089
1090# Tajikistan
2b79b6d5 1091# From Shanks (1995), who writes ``date of change uncertain'' for 1991.
28f540f4
RM
1092# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1093Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
2b79b6d5 1094 5:00 - DUST 1930 Jun 21 # Dushanbe Time
569c558c
UD
1095 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
1096 5:00 1:00 DUSST 1991 Sep 9 # independence
1097 5:00 RussiaAsia TJ%sT 1992
1098 5:00 - TJT # Tajikistan Time
28f540f4
RM
1099
1100# Thailand
1101# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1102Zone Asia/Bangkok 6:42:04 - LMT 1880
569c558c 1103 6:42:04 - BMT 1920 Apr # Bangkok Mean Time
28f540f4
RM
1104 7:00 - ICT
1105
1106# Turkmenistan
2b79b6d5 1107# From Shanks (1995):
28f540f4 1108# Zone NAME GMTOFF RULES FORMAT [UNTIL]
569c558c 1109Zone Asia/Ashkhabad 3:53:32 - LMT 1924 May 2 # or Ashgabat
2b79b6d5
UD
1110 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
1111 5:00 - ASHT 1981 Apr 1
1112 5:00 1:00 ASHST 1981 Oct 1
1113 6:00 - ASHT 1982 Apr 1
1114 5:00 RussiaAsia ASH%sT 1991
1115 5:00 - ASHT 1991 Oct 27 # independence
1116 5:00 RussiaAsia TM%sT 1993 # Turkmenistan Time
1117 5:00 - TMT
28f540f4
RM
1118
1119# United Arab Emirates
1120# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1121Zone Asia/Dubai 3:41:12 - LMT 1920
1122 4:00 - GST
1123
1124# Uzbekistan
2b79b6d5 1125# From Shanks (1995):
28f540f4 1126# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2b79b6d5
UD
1127Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
1128 4:00 - SAMT 1930 Jun 21 # Samarkand Time
1129 5:00 - SAMT 1981 Apr 1
1130 5:00 1:00 SAMST 1981 Oct 1
1131 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00 # Tashkent Time
1132 5:00 - TAST 1991 Sep 1 # independence
1133 5:00 - UZT 1992
1134 5:00 RussiaAsia UZ%sT 1993
1135 5:00 - UZT
28f540f4 1136Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
2b79b6d5 1137 5:00 - TAST 1930 Jun 21 # Tashkent Time
569c558c 1138 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00s
2b79b6d5
UD
1139 5:00 - TAST 1991 Sep 1 # independence
1140 5:00 - UZT 1992
1141 5:00 RussiaAsia UZ%sT 1993
1142 5:00 - UZT
28f540f4
RM
1143
1144# Vietnam
b5791037 1145# From Paul Eggert <eggert@twinsun.com> (1993-11-18):
28f540f4
RM
1146# Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
1147# We'll stick with the traditional name for now.
1148# From Shanks (1991):
1149# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1150Zone Asia/Saigon 7:06:40 - LMT 1906 Jun 9
569c558c 1151 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
28f540f4
RM
1152 7:00 - ICT 1912 May
1153 8:00 - ICT 1931 May
1154 7:00 - ICT
1155
1156# Yemen
1157# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1158Zone Asia/Aden 3:00:48 - LMT 1950
1159 3:00 - AST