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).
7 # From Paul Eggert <eggert@twinsun.com> (1999-03-22):
9 # A good source for time zone historical data outside the U.S. is
10 # Thomas G. Shanks, The International Atlas (5th edition),
11 # San Diego: ACS Publications, Inc. (1999).
13 # Gwillim Law <LAW@encmail.encompass.com> writes that a good source
14 # for recent time zone data is the International Air Transport
15 # Association's Standard Schedules Information Manual (IATA SSIM),
16 # published semiannually. Law sent in several helpful summaries
17 # of the IATA's data after 1990.
19 # Except where otherwise noted, Shanks is the source for entries through 1990,
20 # and IATA SSIM is the source for entries after 1990.
22 # Another source occasionally used is Edward W. Whitman, World Time Differences,
23 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
24 # I found in the UCLA library.
26 # A reliable and entertaining source about time zones is
27 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
29 # I invented the abbreviations marked `*' in the following table;
30 # the rest are from earlier versions of this file, or from other sources.
31 # Corrections are welcome!
34 # 2:00 EET EEST Eastern European Time
36 # 3:00 AST ADT Arabia*
41 # 9:00 CJT Central Japanese Time (1896/1937)*
44 # 9:30 CST (Australian) Central Standard Time
46 # See the `europe' file for Russia and Turkey in Asia.
49 # Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
50 # additional information from Tom Yap, Sun Microsystems Intercontinental
51 # Technical Support (including a page from the Official Airline Guide -
52 # Worldwide Edition). The names for time zones are guesses.
54 ###############################################################################
56 # These rules are stolen from the `europe' file.
57 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
58 Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
59 Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
60 Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
61 Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
62 Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
63 Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
64 Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
65 Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
66 Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
67 Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
68 Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
69 Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
70 Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
71 Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
74 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
75 Zone Asia/Kabul 4:36:48 - LMT 1890
80 # From Paul Eggert (1999-10-29):
81 # Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991,
82 # then to 4:00 with no DST in fall 1995, then readopting Russian DST in 1997.
83 # Go with Shanks, even when he disagrees with others. Edgar Der-Danieliantz
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,
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).
89 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
90 Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
91 3:00 - YERT 1957 Mar # Yerevan Time
92 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
93 3:00 1:00 YERST 1991 Sep 23 # independence
94 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
99 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
100 Rule Azer 1997 max - Mar lastSun 1:00 1:00 S
101 Rule Azer 1997 max - Oct lastSun 1:00 0 -
102 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
103 Zone Asia/Baku 3:19:24 - LMT 1924 May 2
104 3:00 - BAKT 1957 Mar # Baku Time
105 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
106 3:00 1:00 BAKST 1991 Aug 30 # independence
107 3:00 RussiaAsia AZ%sT 1992 Sep lastSun 2:00s
108 4:00 - AZT 1996 # Azerbaijan time
109 4:00 EUAsia AZ%sT 1997
113 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
114 Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al-Manamah
119 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
120 Zone Asia/Dacca 6:01:40 - LMT 1890
121 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
122 6:30 - BURT 1942 May 15 # Burma Time
124 6:30 - BURT 1951 Sep 30
125 6:00 - DACT 1971 Mar 26 # Dacca Time
126 6:00 - BDT # Bangladesh Time
129 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
130 Zone Asia/Thimbu 5:58:36 - LMT 1947 Aug 15
132 6:00 - BTT # Bhutan Time
134 # British Indian Ocean Territory
136 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
137 Zone Indian/Chagos 5:00 - IOT # BIOT Time
140 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
141 Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
146 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
147 Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
148 6:24:36 - RMT 1920 # Rangoon Mean Time?
149 6:30 - BURT 1942 May # Burma Time
150 9:00 - JST 1945 May 3
151 6:30 - MMT # Myanmar Time
154 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
155 Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
156 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
164 # People's Republic of China. Yes, they really have only one time zone.
166 # From Bob Devine (1988-01-28):
167 # No they don't. See TIME mag, 1986-02-17 p.52. Even though
168 # China is across 4 physical time zones, before Feb 1, 1986 only the
169 # Peking (Bejing) time zone was recognized. Since that date, China
170 # has two of 'em -- Peking's and Urumqi (named after the capital of
171 # the Xinjiang Uighur Autonomous Region). I don't know about DST for it.
173 # . . .I just deleted the DST table and this editor makes it too
174 # painful to suck in another copy.. So, here is what I have for
175 # DST start/end dates for Peking's time zone (info from AP):
177 # 1986 May 4 - Sept 14
178 # 1987 mid-April - ??
180 # From U. S. Naval Observatory (1989-01-19):
181 # CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
182 # CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
184 # From Paul Eggert <eggert@twinsun.com> (1995-12-19):
185 # Shanks writes that China has had a single time zone since 1980 May 1,
186 # observing summer DST from 1986 through 1991; this contradicts Devine's
187 # note about Time magazine, though apparently _something_ happened in 1986.
188 # Go with Shanks for now. I made up names for the other pre-1980 time zones.
191 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
192 Rule Shang 1940 only - Jun 3 0:00 1:00 D
193 Rule Shang 1940 1941 - Oct 1 0:00 0 S
194 Rule Shang 1941 only - Mar 16 0:00 1:00 D
195 Rule PRC 1949 only - Jan 1 0:00 0 S
196 Rule PRC 1986 only - May 4 0:00 1:00 D
197 Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
198 Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
199 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
200 Zone Asia/Harbin 8:26:44 - LMT 1928
201 8:30 - HART 1932 Mar # Harbin Time
206 Zone Asia/Shanghai 8:05:52 - LMT 1928
209 Zone Asia/Chungking 7:06:20 - LMT 1928
210 7:00 - CHUT 1980 May # Chungking Time
212 Zone Asia/Urumqi 5:50:20 - LMT 1928
213 6:00 - URUT 1980 May # Urumqi Time
215 Zone Asia/Kashgar 5:03:56 - LMT 1928
216 5:30 - KAST 1940 # Kashgar Time
220 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
221 Rule HK 1946 only - Apr 20 3:30 1:00 S
222 Rule HK 1946 only - Dec 1 3:30 0 -
223 Rule HK 1947 only - Apr 13 3:30 1:00 S
224 Rule HK 1947 only - Dec 30 3:30 0 -
225 Rule HK 1948 only - May 2 3:30 1:00 S
226 Rule HK 1948 1952 - Oct lastSun 3:30 0 -
227 Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
228 Rule HK 1953 only - Nov 1 3:30 0 -
229 Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
230 Rule HK 1954 only - Oct 31 3:30 0 -
231 Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
232 Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S
233 Rule HK 1965 1977 - Oct Sun>=16 3:30 0 -
234 Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
235 Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
236 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
237 Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
238 8:00 HK HK%sT 1997 Jul 1 # return to China
242 ###############################################################################
246 # Shanks writes that Taiwan observed DST during 1945, when it
247 # was still controlled by Japan. This is hard to believe, but we don't
248 # have any other information.
250 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
251 Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
252 Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
253 Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
254 Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
255 Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
256 Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
257 Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
258 Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
259 Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
260 Rule Taiwan 1980 only - Jun 30 0:00 1:00 D
261 Rule Taiwan 1980 only - Sep 30 0:00 0 S
262 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
263 Zone Asia/Taipei 8:06:00 - LMT 1896
267 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
268 Rule Macao 1961 1962 - Mar Sun>=16 3:30 1:00 S
269 Rule Macao 1961 1964 - Nov Sun>=1 3:30 0 -
270 Rule Macao 1963 only - Mar Sun>=16 0:00 1:00 S
271 Rule Macao 1964 only - Mar Sun>=16 3:30 1:00 S
272 Rule Macao 1965 only - Mar Sun>=16 0:00 1:00 S
273 Rule Macao 1965 only - Oct 31 0:00 0 -
274 Rule Macao 1966 1971 - Apr Sun>=16 3:30 1:00 S
275 Rule Macao 1966 1971 - Oct Sun>=16 3:30 0 -
276 Rule Macao 1972 1974 - Apr Sun>=15 0:00 1:00 S
277 Rule Macao 1972 1973 - Oct Sun>=15 0:00 0 -
278 Rule Macao 1974 1977 - Oct Sun>=15 3:30 0 -
279 Rule Macao 1975 1977 - Apr Sun>=15 3:30 1:00 S
280 Rule Macao 1978 1980 - Apr Sun>=15 0:00 1:00 S
281 Rule Macao 1978 1980 - Oct Sun>=15 0:00 0 -
282 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
283 Zone Asia/Macao 7:34:20 - LMT 1912
284 8:00 Macao MO%sT 1999 Dec 20 # return to China
288 ###############################################################################
291 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
292 Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
293 Rule Cyprus 1975 only - Oct 12 0:00 0 -
294 Rule Cyprus 1976 only - May 15 0:00 1:00 S
295 Rule Cyprus 1976 only - Oct 11 0:00 0 -
296 Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
297 Rule Cyprus 1977 only - Sep 25 0:00 0 -
298 Rule Cyprus 1978 only - Oct 2 0:00 0 -
299 Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
300 Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
301 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
302 Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
303 2:00 Cyprus EE%sT 1998 Sep
305 # IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
308 # From Paul Eggert <eggert@twinsun.com> (1994-11-19):
309 # Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
310 # an hour recently, due to a law proposed by Zurab Murvanidze,
311 # an MP who went on a hunger strike for 11 days to force discussion about it!
312 # We have no details, but we'll guess they didn't move the clocks back in fall.
314 # From Mathew Englander <mathew@io.org>, quoting AP (1996-10-23 13:05-04):
315 # Instead of putting back clocks at the end of October, Georgia
316 # will stay on daylight savings time this winter to save energy,
317 # President Eduard Shevardnadze decreed Wednesday.
318 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
319 Zone Asia/Tbilisi 2:59:16 - LMT 1880
320 2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time
321 3:00 - TBIT 1957 Mar # Tbilisi Time
322 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
323 3:00 1:00 TBIST 1991 Apr 9 # independence
324 3:00 RussiaAsia GE%sT 1992 # Georgia Time
325 3:00 E-EurAsia GE%sT 1994 Sep lastSun
326 4:00 E-EurAsia GE%sT 1996 Oct lastSun
327 4:00 1:00 GEST 1997 Mar lastSun
331 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
332 Zone Asia/Dili 8:22:20 - LMT 1912
333 8:00 - TPT 1942 Feb 21 23:00
335 9:00 - TPT 1976 May 3
336 8:00 - TPT # East Timor Time
339 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
340 Zone Asia/Calcutta 5:53:28 - LMT 1880
341 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
342 6:30 - BURT 1942 May 15 # Burma Time
344 5:30 1:00 IST 1945 Oct 15
346 # The following are like Asia/Calcutta:
348 # Lakshadweep (Laccadive, Minicoy and Amindivi Is)
352 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
353 Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
354 # Shanks says the next transition was at 1924 Jan 1 0:13,
355 # but this must be a typo.
356 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta
357 7:20 - JAVT 1932 Nov # Java Time
358 7:30 - JAVT 1942 Mar 23
364 Zone Asia/Ujung_Pandang 7:57:36 - LMT 1920
365 7:57:36 - MMT 1932 Nov # Macassar MT
366 8:00 - BORT 1942 Feb 9 # Borneo Time
369 Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
370 9:00 - JAYT 1944 # Jayapura Time
375 # From Paul Eggert (1999-09-27), following up a suggestion by Rich Wales:
377 # <a href="http://tehran.stanford.edu/Iran_Lib/Calendar/taghveem.txt">
378 # TAGHVEEM (1993-07-12)
380 # writes ``Daylight saving time in Iran starts from the first day
381 # of Farvardin and ends the first day of Mehr.'' This disagrees with the SSIM:
384 # year SSIM Alavi SSIM Alavi
385 # 1991 05-03!= 03-21 09-20!= 09-23
386 # 1992 03-22!= 03-21 09-23 09-23
387 # 1993 03-21 03-21 09-23 09-23
388 # 1994 03-21 03-21 09-22!= 09-23
389 # 1995 03-21 03-21 09-22!= 09-23
390 # 1996 03-21!= 03-20 09-21!= 09-22
391 # 1997 03-21 03-21 09-21!= 09-23
392 # 1998 03-21 03-21 09-21!= 09-23
393 # 1999 03-22!= 03-21 09-22!= 09-23
394 # 2000 03-21!= 03-20 09-21!= 09-22
395 # 2001 03-17!= 03-21 09-19!= 09-23
397 # Go with Alavi starting with 1992.
398 # I used Ed Reingold's cal-persia in GNU Emacs 19.34 to compute Persian dates.
399 # The Persian calendar is based on the sun, and dates after around 2050
400 # are approximate; stop after 2037 when 32-bit time_t's overflow.
402 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
403 Rule Iran 1978 1980 - Mar 21 0:00 1:00 S
404 Rule Iran 1978 only - Oct 21 0:00 0 -
405 Rule Iran 1979 only - Sep 19 0:00 0 -
406 Rule Iran 1980 only - Sep 23 0:00 0 -
407 Rule Iran 1991 only - May 3 0:00s 1:00 S
408 Rule Iran 1991 only - Sep 20 0:00s 0 -
409 Rule Iran 1992 1995 - Mar 21 0:00 1:00 S
410 Rule Iran 1992 1995 - Sep 23 0:00 0 -
411 Rule Iran 1996 only - Mar 20 0:00 1:00 S
412 Rule Iran 1996 only - Sep 22 0:00 0 -
413 Rule Iran 1997 1999 - Mar 21 0:00 1:00 S
414 Rule Iran 1997 1999 - Sep 23 0:00 0 -
415 Rule Iran 2000 only - Mar 20 0:00 1:00 S
416 Rule Iran 2000 only - Sep 22 0:00 0 -
417 Rule Iran 2001 2003 - Mar 21 0:00 1:00 S
418 Rule Iran 2001 2003 - Sep 23 0:00 0 -
419 Rule Iran 2004 only - Mar 20 0:00 1:00 S
420 Rule Iran 2004 only - Sep 22 0:00 0 -
421 Rule Iran 2005 2007 - Mar 21 0:00 1:00 S
422 Rule Iran 2005 2007 - Sep 23 0:00 0 -
423 Rule Iran 2008 only - Mar 20 0:00 1:00 S
424 Rule Iran 2008 only - Sep 22 0:00 0 -
425 Rule Iran 2009 2011 - Mar 21 0:00 1:00 S
426 Rule Iran 2009 2011 - Sep 23 0:00 0 -
427 Rule Iran 2012 only - Mar 20 0:00 1:00 S
428 Rule Iran 2012 only - Sep 22 0:00 0 -
429 Rule Iran 2013 2015 - Mar 21 0:00 1:00 S
430 Rule Iran 2013 2015 - Sep 23 0:00 0 -
431 Rule Iran 2016 only - Mar 20 0:00 1:00 S
432 Rule Iran 2016 only - Sep 22 0:00 0 -
433 Rule Iran 2017 2019 - Mar 21 0:00 1:00 S
434 Rule Iran 2017 2019 - Sep 23 0:00 0 -
435 Rule Iran 2020 only - Mar 20 0:00 1:00 S
436 Rule Iran 2020 only - Sep 22 0:00 0 -
437 Rule Iran 2021 2023 - Mar 21 0:00 1:00 S
438 Rule Iran 2021 2023 - Sep 23 0:00 0 -
439 Rule Iran 2024 2025 - Mar 20 0:00 1:00 S
440 Rule Iran 2024 2025 - Sep 22 0:00 0 -
441 Rule Iran 2026 2027 - Mar 21 0:00 1:00 S
442 Rule Iran 2026 2027 - Sep 23 0:00 0 -
443 Rule Iran 2028 2029 - Mar 20 0:00 1:00 S
444 Rule Iran 2028 2029 - Sep 22 0:00 0 -
445 Rule Iran 2030 2031 - Mar 21 0:00 1:00 S
446 Rule Iran 2030 2031 - Sep 23 0:00 0 -
447 Rule Iran 2032 2033 - Mar 20 0:00 1:00 S
448 Rule Iran 2032 2033 - Sep 22 0:00 0 -
449 Rule Iran 2034 2035 - Mar 21 0:00 1:00 S
450 Rule Iran 2034 2035 - Sep 23 0:00 0 -
451 Rule Iran 2036 2037 - Mar 20 0:00 1:00 S
452 Rule Iran 2036 2037 - Sep 22 0:00 0 -
453 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
454 Zone Asia/Tehran 3:25:44 - LMT 1916
455 3:25:44 - TMT 1946 # Tehran Mean Time
461 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
462 Rule Iraq 1982 only - May 1 0:00 1:00 D
463 Rule Iraq 1982 1984 - Oct 1 0:00 0 S
464 Rule Iraq 1983 only - Mar 31 0:00 1:00 D
465 Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
466 Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
467 Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
468 # IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
469 # Shanks says Iraq did not observe DST 1992/1997 or 1999 on; ignore this.
470 Rule Iraq 1991 max - Apr 1 3:00s 1:00 D
471 Rule Iraq 1991 max - Oct 1 3:00s 0 D
472 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
473 Zone Asia/Baghdad 2:57:40 - LMT 1890
474 2:57:36 - BMT 1918 # Baghdad Mean Time?
479 ###############################################################################
483 # From U. S. Naval Observatory (1989-01-19):
484 # ISRAEL 2 H AHEAD OF UTC
485 # ISRAEL 3 H AHEAD OF UTC APR 10 - SEP 3
488 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
489 Rule Zion 1940 only - Jun 1 0:00 1:00 D
490 Rule Zion 1942 1944 - Nov 1 0:00 0 S
491 Rule Zion 1943 only - Apr 1 2:00 1:00 D
492 Rule Zion 1944 only - Apr 1 0:00 1:00 D
493 Rule Zion 1945 only - Apr 16 0:00 1:00 D
494 Rule Zion 1945 only - Nov 1 2:00 0 S
495 Rule Zion 1946 only - Apr 16 2:00 1:00 D
496 Rule Zion 1946 only - Nov 1 0:00 0 S
497 Rule Zion 1948 only - May 23 0:00 2:00 DD
498 Rule Zion 1948 only - Sep 1 0:00 1:00 D
499 Rule Zion 1948 1949 - Nov 1 2:00 0 S
500 Rule Zion 1949 only - May 1 0:00 1:00 D
501 Rule Zion 1950 only - Apr 16 0:00 1:00 D
502 Rule Zion 1950 only - Sep 15 3:00 0 S
503 Rule Zion 1951 only - Apr 1 0:00 1:00 D
504 Rule Zion 1951 only - Nov 11 3:00 0 S
505 Rule Zion 1952 only - Apr 20 2:00 1:00 D
506 Rule Zion 1952 only - Oct 19 3:00 0 S
507 Rule Zion 1953 only - Apr 12 2:00 1:00 D
508 Rule Zion 1953 only - Sep 13 3:00 0 S
509 Rule Zion 1954 only - Jun 13 0:00 1:00 D
510 Rule Zion 1954 only - Sep 12 0:00 0 S
511 Rule Zion 1955 only - Jun 11 2:00 1:00 D
512 Rule Zion 1955 only - Sep 11 0:00 0 S
513 Rule Zion 1956 only - Jun 3 0:00 1:00 D
514 Rule Zion 1956 only - Sep 30 3:00 0 S
515 Rule Zion 1957 only - Apr 29 2:00 1:00 D
516 Rule Zion 1957 only - Sep 22 0:00 0 S
517 Rule Zion 1974 only - Jul 7 0:00 1:00 D
518 Rule Zion 1974 only - Oct 13 0:00 0 S
519 Rule Zion 1975 only - Apr 20 0:00 1:00 D
520 Rule Zion 1975 only - Aug 31 0:00 0 S
521 Rule Zion 1985 only - Apr 14 0:00 1:00 D
522 Rule Zion 1985 only - Sep 15 0:00 0 S
523 Rule Zion 1986 only - May 18 0:00 1:00 D
524 Rule Zion 1986 only - Sep 7 0:00 0 S
525 Rule Zion 1987 only - Apr 15 0:00 1:00 D
526 Rule Zion 1987 only - Sep 13 0:00 0 S
527 Rule Zion 1988 only - Apr 9 0:00 1:00 D
528 Rule Zion 1988 only - Sep 3 0:00 0 S
530 # From Ephraim Silverberg <ephraim@cs.huji.ac.il>
531 # (1997-03-04, 1998-03-16 and 1998-12-28):
533 # According to the Office of the Secretary General of the Ministry of
534 # Interior, there is NO set rule for Daylight-Savings/Standard time changes.
535 # One thing is entrenched in law, however: that there must be at least 150
536 # days of daylight savings time annually. From 1993-1998, the change to
537 # daylight savings time was on a Friday morning from midnight IST to
538 # 1 a.m IDT; up until 1998, the change back to standard time was on a
539 # Saturday night from midnight daylight savings time to 11 p.m. standard
540 # time. 1996 is an exception to this rule where the change back to standard
541 # time took place on Sunday night instead of Saturday night to avoid
542 # conflicts with the Jewish New Year. Starting in 1999, the change to
543 # daylight savings time will still be on a Friday morning but from
544 # 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
545 # will now also be on a Friday morning from 2 a.m. IDT to 1 a.m. IST.
547 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
548 Rule Zion 1989 only - Apr 30 0:00 1:00 D
549 Rule Zion 1989 only - Sep 3 0:00 0 S
550 Rule Zion 1990 only - Mar 25 0:00 1:00 D
551 Rule Zion 1990 only - Aug 26 0:00 0 S
552 Rule Zion 1991 only - Mar 24 0:00 1:00 D
553 Rule Zion 1991 only - Sep 1 0:00 0 S
554 Rule Zion 1992 only - Mar 29 0:00 1:00 D
555 Rule Zion 1992 only - Sep 6 0:00 0 S
556 Rule Zion 1993 only - Apr 2 0:00 1:00 D
557 Rule Zion 1993 only - Sep 5 0:00 0 S
559 # The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
560 # Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
561 # calling the office directly at 972-2-6701447 or 972-2-6701448.
563 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
564 Rule Zion 1994 only - Apr 1 0:00 1:00 D
565 Rule Zion 1994 only - Aug 28 0:00 0 S
566 Rule Zion 1995 only - Mar 31 0:00 1:00 D
567 Rule Zion 1995 only - Sep 3 0:00 0 S
569 # The dates for 1996 were determined by the Minister of Interior of the
570 # time, Haim Ramon. The official announcement regarding 1996-1998
571 # (with the dates for 1997-1998 no longer being relevant) can be viewed at:
573 # ftp://ftp.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
575 # The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
577 # The official announcements for the years 1997-1999 can be viewed at:
579 # ftp://ftp.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
581 # where YYYY is the relevant year.
583 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
584 Rule Zion 1996 only - Mar 15 0:00 1:00 D
585 Rule Zion 1996 only - Sep 16 0:00 0 S
586 Rule Zion 1997 only - Mar 21 0:00 1:00 D
587 Rule Zion 1997 only - Sep 14 0:00 0 S
588 Rule Zion 1998 only - Mar 20 0:00 1:00 D
589 Rule Zion 1998 only - Sep 6 0:00 0 S
590 Rule Zion 1999 only - Apr 2 2:00 1:00 D
591 Rule Zion 1999 only - Sep 3 2:00 0 S
593 # Due to imminent elections in 1999, there are no dates for the year 2000
594 # and beyond. There was a move to legislate the DST rules in Israel, but
595 # due to the government's fall, it most likely won't be brought to the Knesset
596 # for first reading before the elections and will probably be altered by the
597 # newly elected government.
599 # From Paul Eggert (1999-01-30):
600 # Here are guesses for rules after 1999.
601 # They are probably wrong, but they are more likely than no DST at all.
602 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
603 Rule Zion 2000 max - Apr Fri>=1 2:00 1:00 D
604 Rule Zion 2000 max - Sep Fri>=1 2:00 0 S
606 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
607 Zone Asia/Jerusalem 2:20:56 - LMT 1880
608 2:20:40 - JMT 1918 # Jerusalem Mean Time?
612 ###############################################################################
616 # `9:00' and `JST' is from Guy Harris.
618 # From Paul Eggert <eggert@twinsun.com> (1995-03-06):
619 # Today's _Asahi Evening News_ (page 4) reports that Japan had
620 # daylight saving between 1948 and 1951, but ``the system was discontinued
621 # because the public believed it would lead to longer working hours.''
622 # Shanks writes that daylight saving in Japan during those years was as follows:
623 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
624 #Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
625 #Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
626 #Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
627 #Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
628 # but the only locations using it were US military bases.
629 # We go with Shanks and omit daylight saving in those years for Asia/Tokyo.
631 # From Hideyuki Suzuki (1998-11-09):
632 # 'Tokyo' usually stands for the former location of Tokyo Astronomical
633 # Observatory: E 139 44' 40".90 (9h 18m 58s.727), N 35 39' 16".0.
634 # This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
635 # edited by National Astronomical Observatory of Japan....
636 # JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
637 # The law is enacted on 1886-07-07.
639 # From Hideyuki Suzuki (1998-11-16):
640 # The ordinance No. 51 (1886) established "standard time" in Japan,
641 # which stands for the time on E 135 degree.
642 # In the ordinance No. 167 (1895), "standard time" was renamed to "central
643 # standard time". And the same ordinance also established "western standard
644 # time", which stands for the time on E 120 degree.... But "western standard
645 # time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
646 # 167, there is no mention regarding for what place western standard time is
649 # I wrote "ordinance" above, but I don't know how to translate.
650 # In Japanese it's "chokurei", which means ordinance from emperor.
652 # Shanks claims JST in use since 1896, and that a few places (e.g. Ishigaki)
653 # use +0800; go with Suzuki. Guess that all ordinances took effect on Jan 1.
655 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
656 Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
660 # Since 1938, all Japanese possessions have been like Asia/Tokyo.
664 # From <a href="http://star.arabia.com/990701/JO9.html">
665 # Jordan Week (1999-07-01) </a> via Steffen Thorsen (1999-09-09):
666 # Clocks in Jordan were forwarded one hour on Wednesday at midnight,
667 # in accordance with the government's decision to implement summer time
670 # From <a href="http://star.arabia.com/990930/JO9.html">
671 # Jordan Week (1999-09-30) </a> via Steffen Thorsen (1999-11-09):
672 # Winter time starts today Thursday, 30 September. Clocks will be turned back
673 # by one hour. This is the latest government decision and it's final!
674 # The decision was taken because of the increase in working hours in
675 # government's departments from six to seven hours.
677 # From Paul Eggert (1999-11-09):
678 # No word on Jordan's future rules; assume 04-01 to 10-01 for now.
680 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
681 Rule Jordan 1973 only - Jun 6 0:00 1:00 S
682 Rule Jordan 1973 1975 - Oct 1 0:00 0 -
683 Rule Jordan 1974 1977 - May 1 0:00 1:00 S
684 Rule Jordan 1976 only - Nov 1 0:00 0 -
685 Rule Jordan 1977 only - Oct 1 0:00 0 -
686 Rule Jordan 1978 only - Apr 30 0:00 1:00 S
687 Rule Jordan 1978 only - Sep 30 0:00 0 -
688 Rule Jordan 1985 only - Apr 1 0:00 1:00 S
689 Rule Jordan 1985 only - Oct 1 0:00 0 -
690 Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
691 Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
692 Rule Jordan 1989 only - May 8 0:00 1:00 S
693 Rule Jordan 1990 only - Apr 27 0:00 1:00 S
694 Rule Jordan 1991 only - Apr 17 0:00 1:00 S
695 Rule Jordan 1991 only - Sep 27 0:00 0 -
696 Rule Jordan 1992 only - Apr 10 0:00 1:00 S
697 Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
698 Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
699 Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
700 Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
701 Rule Jordan 1999 only - Jul 1 0:00 1:00 S
702 Rule Jordan 1999 max - Oct 1 0:00 0 -
703 Rule Jordan 2000 max - Apr 1 0:00 1:00 -
704 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
705 Zone Asia/Amman 2:23:44 - LMT 1931
709 # From Paul Eggert (1996-11-22):
710 # Andrew Evtichov <evti@chevron.com> (1996-04-13) writes that Kazakhstan
711 # stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
712 # and Aqtau (formerly Shevchenko) are the largest cities in their zones.
713 # Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
714 # IATA SSIM mentions a third time zone in Kazakhstan.
716 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
717 Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
718 5:00 - ALMT 1957 Mar # Alma-Ata Time
719 6:00 RussiaAsia ALM%sT 1991 Mar 31 2:00s
720 5:00 1:00 ALMST 1991 Sep 29 2:00s
721 5:00 - ALMT 1992 Jan 19 2:00s
722 6:00 E-EurAsia ALM%sT
723 Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
724 4:00 - AKT 1957 Mar # Aktyubinsk Time
725 5:00 RussiaAsia AK%sT 1991 Mar 31 2:00s
726 4:00 1:00 AKTST 1991 Sep 29 2:00s
727 4:00 - AQTT 1992 Jan 19 2:00s # Aqtobe Time
728 5:00 E-EurAsia AQT%sT
729 Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 # or Aktau
730 4:00 - SHET 1957 Mar # Fort Shevchenko Time
731 5:00 RussiaAsia SHE%sT 1991 Mar 31 2:00s
732 4:00 1:00 AQTST 1991 Sep 29 2:00s
733 4:00 - AQTT 1992 Jan 19 2:00s # Aqtau Time
734 5:00 E-EurAsia AQT%sT 1995 Sep lastSun
735 4:00 E-EurAsia AQT%sT
738 # Transitions through 1991 are from Shanks.
739 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
740 Rule Kirgiz 1992 1996 - Apr Sun>=7 0:00 1:00 S
741 Rule Kirgiz 1992 1996 - Sep lastSun 0:00 0 -
742 Rule Kirgiz 1997 max - Mar lastSun 2:30 1:00 S
743 Rule Kirgiz 1997 max - Oct lastSun 2:30 0 -
744 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
745 Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
746 5:00 - FRUT 1930 Jun 21 # Frunze Time
747 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
748 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
749 5:00 Kirgiz KG%sT # Kirgizstan Time
751 ###############################################################################
753 # Korea (North and South)
756 # According to someone at the Korean Times in San Francisco,
757 # Daylight Savings Time was not observed until 1987. He did not know
758 # at what time of day DST starts or ends.
761 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
762 Rule ROK 1960 only - May 15 0:00 1:00 D
763 Rule ROK 1960 only - Sep 13 0:00 0 S
764 Rule ROK 1987 1988 - May Sun<=14 0:00 1:00 D
765 Rule ROK 1987 1988 - Oct Sun<=14 0:00 0 S
767 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
768 Zone Asia/Seoul 8:27:52 - LMT 1890
772 9:00 - KST 1954 Mar 21
773 8:00 ROK K%sT 1961 Aug 10
776 Zone Asia/Pyongyang 8:23:00 - LMT 1890
780 9:00 - KST 1954 Mar 21
781 8:00 - KST 1961 Aug 10
784 ###############################################################################
787 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
788 Zone Asia/Kuwait 3:11:56 - LMT 1950
792 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
793 Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9
794 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
800 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
801 Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
802 Rule Lebanon 1920 only - Oct 25 0:00 0 -
803 Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
804 Rule Lebanon 1921 only - Oct 3 0:00 0 -
805 Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
806 Rule Lebanon 1922 only - Oct 8 0:00 0 -
807 Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
808 Rule Lebanon 1923 only - Sep 16 0:00 0 -
809 Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
810 Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
811 Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
812 Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
813 Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
814 Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
815 Rule Lebanon 1978 only - Sep 30 0:00 0 -
816 Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
817 Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
818 Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
819 Rule Lebanon 1989 only - May 10 0:00 1:00 S
820 Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
821 Rule Lebanon 1992 only - Oct 4 0:00 0 -
822 Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
823 Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
824 Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
825 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
826 Zone Asia/Beirut 2:22:00 - LMT 1880
830 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
831 Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS
832 Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
833 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
834 Zone Asia/Kuala_Lumpur 6:46:48 - LMT 1880
835 6:55:24 - SMT 1905 Jun # Singapore Mean Time
836 7:00 - MALT 1933 # Malaya Time
837 7:20 - MALT 1942 Feb 15
838 9:00 - JST 1945 Sep 2
841 8:00 - MYT # Malaysia Time
842 Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
843 7:30 - BORT 1933 # Borneo Time
844 8:00 NBorneo BOR%sT 1942
845 9:00 - JST 1945 Sep 2
850 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
851 Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
852 4:54:00 - MMT 1960 # Male Mean Time
853 5:00 - MVT # Maldives Time
856 # Shanks says that Mongolia has three time zones, but usno1995 and the CIA map
857 # Standard Time Zones of the World (1997-01)
858 # both say that it has just one.
859 # Let's comment out the western and eastern Mongolian time zones
860 # till we know what their principal towns are.
861 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
862 Rule Mongol 1981 1984 - Apr 1 0:00 1:00 S
863 Rule Mongol 1981 1984 - Oct 1 0:00 0 -
864 Rule Mongol 1985 1990 - Mar lastSun 2:00 1:00 S
865 Rule Mongol 1985 1990 - Sep lastSun 3:00 0 -
866 Rule Mongol 1991 max - Mar lastSun 0:00 1:00 S
867 Rule Mongol 1991 1995 - Sep lastSun 0:00 0 -
868 # IATA SSIM (1996-09) says 1996-10-25; go with Shanks.
869 Rule Mongol 1996 only - Oct lastSun 0:00 0 -
870 Rule Mongol 1997 max - Sep lastSun 0:00 0 -
871 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
872 #Zone Asia/Dariv 6:14:32 - LMT 1905 Aug
873 # 6:00 - DART 1978 # Dariv Time
875 Zone Asia/Ulan_Bator 7:07:32 - LMT 1905 Aug
876 7:00 - ULAT 1978 # Ulan Bator Time
878 #Zone Asia/Baruun-Urt 7:33:00 - LMT 1905 Aug
879 # 8:00 - BART 1978 # Baruun-Urt Time
883 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
884 Zone Asia/Katmandu 5:41:16 - LMT 1920
886 5:45 - NPT # Nepal Time
889 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
890 Zone Asia/Muscat 3:54:20 - LMT 1920
894 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
895 Zone Asia/Karachi 4:28:12 - LMT 1907
897 5:30 1:00 IST 1945 Oct 15
898 5:30 - IST 1951 Sep 30
899 5:00 - KART 1971 Mar 26 # Karachi Time
900 5:00 - PKT # Pakistan Time
904 # From Amos Shapir <amos@nsof.co.il> (1998-02-15):
906 # From 1917 until 1948-05-15, all of Palestine, including the parts now
907 # known as the Gaza Strip and the West Bank, was under British rule.
908 # Therefore the rules given for Israel for that period, apply there too...
910 # The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
911 # (except a short occupation by Israel from 1956-11 till 1957-03, but no
912 # time zone was affected then). It was never formally annexed to Egypt,
915 # The rest of Palestine was under Jordanian rule at that time, formally
916 # annexed in 1950 as the West Bank (and the word "Trans" was dropped from
917 # the country's previous name of "the Hashemite Kingdom of the
918 # Trans-Jordan"). So the rules for Jordan for that time apply. Major
919 # towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
922 # Both areas were occupied by Israel in June 1967, but not annexed (except
923 # for East Jerusalem). They were on Israel time since then; there might
924 # have been a Military Governor's order about time zones, but I'm not aware
925 # of any (such orders may have been issued semi-annually whenever summer
926 # time was in effect, but maybe the legal aspect of time was just neglected).
928 # The Palestinian Authority was established in 1993, and got hold of most
929 # towns in the West Bank and Gaza by 1995. I know that in order to
930 # demonstrate...independence, they have been switching to
931 # summer time and back on a different schedule than Israel's, but I don't
932 # know when this was started, or what algorithm is used (most likely the
935 # To summarize, the table should probably look something like that:
937 # Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
938 # ------------+-----------+-----------+-----------+-----------
939 # Israel | Zion | Zion | Zion | Zion
940 # West bank | Zion | Jordan | Zion | Jordan
941 # Gaza | Zion | Egypt | Zion | Jordan
943 # I guess more info may be available from the PA's web page (if/when they
946 # From Paul Eggert (1998-02-25):
947 # Shanks writes that Gaza did not observe DST until 1957, but we'll go
948 # with Shapir and assume that it observed DST from 1940 through 1947,
949 # and that it used Jordanian rules starting in 1996.
950 # We don't yet need a separate entry for the West Bank, since
951 # the only differences between it and Gaza that we know about
952 # occurred before our cutoff date of 1970.
953 # However, as we get more information, we may need to add entries
954 # for parts of the West Bank as they transitioned from Israel's rules
955 # to Palestine's rules. If you have more info about this, please
956 # send it to tz@elsie.nci.nih.gov for incorporation into future editions.
958 # From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
959 # forwarded by Ephraim Silverberg:
961 # Despite the fact that Israel changed over to daylight savings time
962 # last week, the PLO Authority (PA) has decided not to turn its clocks
963 # one-hour forward at this time. As a sign of independence from Israeli rule,
964 # the PA has decided to implement DST in April.
966 # From Paul Eggert (1999-09-20):
967 # Daoud Kuttab writes in
968 # <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html">
970 # </a> (Jerusalem Post, 1999-04-22) that
971 # the Palestinian National Authority changed to DST on 1999-04-15.
972 # I vaguely recall that they switch back in October (sorry, forgot the source).
973 # For now, let's assume that the spring switch was at 24:00,
974 # and that they switch at 0:00 on the 3rd Fridays of April and October.
976 # The rules for Egypt are stolen from the `africa' file.
977 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
978 Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
979 Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
980 Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
981 Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
982 Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
983 Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
985 Rule Palestine 1999 max - Apr Fri>=15 0:00 1:00 S
986 Rule Palestine 1999 max - Oct Fri>=15 0:00 0 -
988 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
989 Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
990 2:00 Zion EET 1948 May 15
991 2:00 EgyptAsia EE%sT 1967 Jun 5
993 2:00 Jordan EE%sT 1999
1000 # Howse writes (p 153) that until 1844 the Philippines kept American date.
1001 # The rest of this data is from Shanks.
1002 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1003 Rule Phil 1936 only - Nov 1 0:00 1:00 S
1004 Rule Phil 1937 only - Feb 1 0:00 0 -
1005 Rule Phil 1954 only - Apr 12 0:00 1:00 S
1006 Rule Phil 1954 only - Jul 1 0:00 0 -
1007 Rule Phil 1978 only - Mar 22 0:00 1:00 S
1008 Rule Phil 1978 only - Sep 21 0:00 0 -
1009 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1010 Zone Asia/Manila -15:56:00 - LMT 1844
1011 8:04:00 - LMT 1899 May 11
1012 8:00 Phil PH%sT 1942 May
1017 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1018 Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah
1023 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1024 Zone Asia/Riyadh 3:06:52 - LMT 1950
1028 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1029 Zone Asia/Singapore 6:55:24 - LMT 1880
1030 6:55:24 - SMT 1905 Jun # Singapore Mean Time
1031 7:00 - MALT 1933 # Malaya Time
1032 7:20 - MALT 1942 Feb 15
1033 9:00 - JST 1945 Sep 2
1035 7:30 - MALT 1965 Aug 9 # independence
1036 7:30 - SGT 1982 May # Singapore Time
1043 # From Paul Eggert (1996-09-03):
1044 # "Sri Lanka advances clock by an hour to avoid blackout"
1045 # (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
1046 # no longer available as of 1999-08-17)
1047 # reported ``the country's standard time will be put forward by one hour at
1048 # midnight Friday (1830 GMT) `in the light of the present power crisis'.''
1050 # From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
1052 # <a href="news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net">
1053 # Daily News - Hot News Section (1996-10-26)
1055 # With effect from 12.30 a.m. on 26th October 1996
1056 # Sri Lanka will be six (06) hours ahead of GMT.
1058 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1059 Zone Asia/Colombo 5:19:24 - LMT 1880
1060 5:19:32 - MMT 1906 # Moratuwa Mean Time
1061 5:30 - IST 1942 Jan 5
1062 5:30 0:30 IHST 1942 Sep
1063 5:30 1:00 IST 1945 Oct 16 2:00
1064 5:30 - IST 1996 May 25 0:00
1065 6:30 - LKT 1996 Oct 26 0:30
1069 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1070 Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
1071 Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
1072 Rule Syria 1962 only - Apr 29 2:00 1:00 S
1073 Rule Syria 1962 only - Oct 1 2:00 0 -
1074 Rule Syria 1963 1965 - May 1 2:00 1:00 S
1075 Rule Syria 1963 only - Sep 30 2:00 0 -
1076 Rule Syria 1964 only - Oct 1 2:00 0 -
1077 Rule Syria 1965 only - Sep 30 2:00 0 -
1078 Rule Syria 1966 only - Apr 24 2:00 1:00 S
1079 Rule Syria 1966 1976 - Oct 1 2:00 0 -
1080 Rule Syria 1967 1978 - May 1 2:00 1:00 S
1081 Rule Syria 1977 1978 - Sep 1 2:00 0 -
1082 Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
1083 Rule Syria 1983 1984 - Oct 1 2:00 0 -
1084 Rule Syria 1986 only - Feb 16 2:00 1:00 S
1085 Rule Syria 1986 only - Oct 9 2:00 0 -
1086 Rule Syria 1987 only - Mar 1 2:00 1:00 S
1087 Rule Syria 1987 1988 - Oct 31 2:00 0 -
1088 Rule Syria 1988 only - Mar 15 2:00 1:00 S
1089 Rule Syria 1989 only - Mar 31 2:00 1:00 S
1090 Rule Syria 1989 only - Oct 1 2:00 0 -
1091 Rule Syria 1990 only - Apr 1 2:00 1:00 S
1092 Rule Syria 1990 only - Sep 30 2:00 0 -
1093 Rule Syria 1991 only - Apr 1 0:00 1:00 S
1094 Rule Syria 1991 1992 - Oct 1 0:00 0 -
1095 Rule Syria 1992 only - Apr 8 0:00 1:00 S
1096 Rule Syria 1993 only - Mar 26 0:00 1:00 S
1097 Rule Syria 1993 only - Sep 25 0:00 0 -
1098 # IATA SSIM (1998-02) says 1998-04-02;
1099 # (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
1100 # 2000-04-02, and 2001-04-02; ignore all these claims and go with Shanks.
1101 Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
1102 Rule Syria 1994 max - Oct 1 0:00 0 -
1103 Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
1104 Rule Syria 1999 max - Apr 1 0:00 1:00 S
1105 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1106 Zone Asia/Damascus 2:25:12 - LMT 1920
1111 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1112 Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
1113 5:00 - DUST 1930 Jun 21 # Dushanbe Time
1114 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
1115 5:00 1:00 DUSST 1991 Sep 9 2:00s
1116 5:00 - TJT # Tajikistan Time
1119 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1120 Zone Asia/Bangkok 6:42:04 - LMT 1880
1121 6:42:04 - BMT 1920 Apr # Bangkok Mean Time
1126 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1127 Zone Asia/Ashkhabad 3:53:32 - LMT 1924 May 2 # or Ashgabat
1128 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
1129 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
1130 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
1131 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
1134 # United Arab Emirates
1135 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1136 Zone Asia/Dubai 3:41:12 - LMT 1920
1140 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1141 Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
1142 4:00 - SAMT 1930 Jun 21 # Samarkand Time
1143 5:00 - SAMT 1981 Apr 1
1144 5:00 1:00 SAMST 1981 Oct 1
1145 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00 # Tashkent Time
1146 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
1147 5:00 RussiaAsia UZ%sT 1992
1148 5:00 RussiaAsia UZ%sT 1993
1150 Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
1151 5:00 - TAST 1930 Jun 21 # Tashkent Time
1152 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00s
1153 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
1154 5:00 RussiaAsia UZ%sT 1992
1155 5:00 RussiaAsia UZ%sT 1993
1159 # From Paul Eggert <eggert@twinsun.com> (1993-11-18):
1160 # Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
1161 # We'll stick with the traditional name for now.
1163 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1164 Zone Asia/Saigon 7:06:40 - LMT 1906 Jun 9
1165 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
1171 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
1172 Zone Asia/Aden 3:00:48 - LMT 1950
projects / platform / upstream / glibc.git / blob