| blob | c9cdc7ebadc537f56e3c9605c7dfe40c1fbbeb91 |
1 # @(#)asia 7.18
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> (1995-12-19):
8 #
9 # A good source for time zone historical data outside the U.S. is
10 # Thomas G. Shanks, The International Atlas (3rd edition),
11 # San Diego: ACS Publications, Inc. (1991).
12 # Except where otherwise noted, it is the source for the data below.
13 #
14 # Another source occasionally used is Edward W. Whitman, World Time Differences,
15 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
16 # I found in the UCLA library.
17 #
18 # A reliable and entertaining source about time zones is
19 # Derek Howse, Greenwich time and the discovery of the longitude,
20 # Oxford University Press (1980).
21 #
22 # I invented the abbreviations marked `*' in the following table;
23 # the rest are from earlier versions of this file, or from other sources.
24 # Corrections are welcome!
25 # std dst
26 # LMT Local Mean Time
27 # LST Local Star Time (Russian ``mestnoe zvezdnoe vremya'')
28 # 2:00 EET EET DST Eastern European Time
29 # 2:00 IST IDT Israel
30 # 3:00 AST ADT Arabia*
31 # 3:00 BSK BSD Baku (was 4:00)*
32 # 3:30 IST IDT Iran
33 # 4:00 TBSK TBSD Tbilisi (was 3:00)*
34 # 4:00 YSK YSD Yerevan (was 3:00)*
35 # 4:00 GST GDT Gulf*
36 # 4:30 AFT Afghanistan*
37 # 5:00 ASK ASD Ashkhabad (was 4:00)*
38 # 5:00 BSK BSD Bishkek (was 6:00) (was FSK, FSD)*
39 # 5:00 PKT Pakistan*
40 # 5:00 TSK TSD Tashkent (was 6:00)*
41 # 5:30 IST IST India
42 # 5:45 NPT Nepal*
43 # 6:00 AASK AASD Alma-Ata (was 5:00)*
44 # 6:00 BGT Bengal, Bangladesh*
45 # 6:00 DSK DSD Dushanbe (was 5:00)*
46 # 6:30 BMT Burma*
47 # 7:00 ICT Indochina*
48 # 7:00 JVT Java*
49 # 8:00 BNT Borneo, Brunei*
50 # 8:00 CST CDT China
51 # 8:00 HKT HKST Hong Kong
52 # 8:00 PST PDT Philippines*
53 # 8:00 SGT Singapore
54 # 8:00 UST UDT Ulan Bator*
55 # 9:00 JST JDT Japan
56 # 9:00 KST KDT Korea
57 # 9:00 MLT Moluccas*
58 # 9:30 CST Australian Central Standard Time
59 #
60 # See the `europe' file for Russia and Turkey in Asia.
61 #
62 # See the `africa' file for Zone naming conventions.
64 # From Guy Harris:
65 # Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
66 # additional information from Tom Yap, Sun Microsystems Intercontinental
67 # Technical Support (including a page from the Official Airline Guide -
68 # Worldwide Edition). The names for time zones are guesses.
70 ###############################################################################
72 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
73 Rule Russia 1981 1984 - Apr 1 0:00 1:00 D
74 Rule Russia 1981 1983 - Oct 1 0:00 0 K
75 Rule Russia 1984 max - Sep lastSun 2:00s 0 K
76 Rule Russia 1985 max - Mar lastSun 2:00s 1:00 D
78 # Afghanistan
79 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
80 Zone Asia/Kabul 4:36:48 - LMT 1890
81 4:00 - GST 1945
82 4:30 - AFT
84 # Armenia
85 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
86 Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
87 3:00 - YSK 1957 Mar
88 4:00 Russia YS%s
89 # Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991,
90 # but usno1995 has Armenia at 4:00 (with DST). Ignore the 1991 switch for now.
92 # Azerbaijan
93 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
94 Zone Asia/Baku 3:19:24 - LMT 1924 May 2
95 3:00 - BSK 1957 Mar
96 4:00 Russia BS%s 1991 Mar 31 2:00s
97 3:00 1:00 BSD 1991 Sep 29 2:00s
98 3:00 - BSK
99 # Shanks has Baku using Russian DST rules after 1991,
100 # but usno1995 has Azerbaijan with no DST. Go with usno1995.
102 # Bahrain
103 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
104 Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al-Manamah
105 4:00 - GST 1972 Jun
106 3:00 - AST
108 # Bangladesh
109 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
110 Zone Asia/Dacca 6:01:40 - LMT 1890
111 5:53 - CMT 1941 Oct # Calcutta Mean Time
112 6:30 - BMT 1942 May 15
113 5:30 - IST 1942 Sep
114 6:30 - BMT 1951 Sep 30
115 6:00 - BGT
117 # Bhutan
118 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
119 Zone Asia/Thimbu 5:58:36 - LMT 1947 Aug 15
120 5:30 - IST 1987 Oct
121 6:00 - BGT
123 # British Indian Ocean Territory
124 # From Whitman:
125 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
126 Zone Indian/Chagos 5:00 - PKT
128 # Brunei
129 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
130 Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
131 7:30 - BNT 1933
132 8:00 - BNT
134 # Burma / Myanmar
135 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
136 Zone Asia/Rangoon 6:24:40 - LMT 1880
137 6:25 - RMT 1920
138 6:30 - BMT 1942 May
139 9:00 - JST 1945 May 3
140 6:30 - BMT
142 # Cambodia
143 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
144 Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
145 7:06 - SMT 1911 Mar 11 0:01 # Saigon MT
146 7:00 - ICT 1912 May
147 8:00 - ICT 1931 May
148 7:00 - ICT
150 # People's Republic of China
152 # From Guy Harris:
153 # People's Republic of China. Yes, they really have only one time zone.
155 # From Bob Devine (January 28, 1988):
156 # No they don't. See TIME mag, February 17, 1986 p.52. Even though
157 # China is across 4 physical time zones, before Feb 1, 1986 only the
158 # Peking (Bejing) time zone was recognized. Since that date, China
159 # has two of 'em -- Peking's and Urumqi (named after the capital of
160 # the Xinjiang Uighur Autonomous Region). I don't know about DST for it.
161 #
162 # . . .I just deleted the DST table and this editor makes it too
163 # painful to suck in another copy.. So, here is what I have for
164 # DST start/end dates for Peking's time zone (info from AP):
165 #
166 # 1986 May 4 - Sept 14
167 # 1987 mid-April - ??
169 # From U. S. Naval Observatory (January 19, 1989):
170 # CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
171 # CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
173 # From Paul Eggert <eggert@twinsun.com> (1995-12-19):
174 # Shanks writes that China switched from the Chinese calendar on 1912 Feb 12.
175 # He also writes that China has had a single time zone since 1980 May 1,
176 # observing summer DST from 1986 through 1991; this contradicts Devine's
177 # note about Time magazine, though apparently _something_ happened in 1986.
178 # Go with Shanks for now. I made up names for the other pre-1980 time zones.
180 # From Shanks (1991):
181 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
182 Rule Shang 1928 only - Jan 1 0:00 0 S
183 Rule Shang 1940 only - Jun 3 0:00 1:00 D
184 Rule Shang 1940 1941 - Oct 1 0:00 0 S
185 Rule Shang 1941 only - Mar 16 0:00 1:00 D
186 Rule PRC 1949 only - Jan 1 0:00 0 S
187 Rule PRC 1986 only - May 4 0:00 1:00 D
188 Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
189 Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
190 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
191 Zone Asia/Harbin 8:26:44 - LMT 1928
192 8:30 - MAT 1932 Mar # Manchuria
193 8:00 - CST 1940
194 9:00 - KST 1966 May
195 8:30 - MAT 1980 May
196 8:00 PRC C%sT
197 Zone Asia/Shanghai 8:05:52 - LMT 1928
198 8:00 Shang C%sT 1949
199 8:00 PRC C%sT
200 Zone Asia/Chungking 7:06:20 - LMT 1928
201 7:00 - ICT 1980 May
202 8:00 PRC C%sT
203 Zone Asia/Urumqi 5:50:20 - LMT 1928
204 6:00 - URT 1980 May # Urumqi
205 8:00 PRC C%sT
206 Zone Asia/Kashgar 5:03:56 - LMT 1928
207 5:30 - ETT 1940 # Eastern Turkestan
208 5:00 - ETT 1980 May
209 8:00 PRC C%sT
211 ###############################################################################
213 # Republic of China
215 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
216 Rule Taiwan 1896 only - Jan 1 0:00 0 S
217 Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
218 Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
219 Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
220 Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
221 Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
222 Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
223 Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
224 Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
225 Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
226 Rule Taiwan 1980 only - Jun 30 0:00 1:00 D
227 Rule Taiwan 1980 only - Sep 30 0:00 0 S
228 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
229 Zone Asia/Taipei 8:06:00 - LMT 1896
230 8:00 Taiwan C%sT
232 ###############################################################################
233 # Hong Kong
234 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
235 Rule HK 1904 only - Oct 30 0:00 0 -
236 Rule HK 1946 only - Apr 20 3:30 1:00 S
237 Rule HK 1946 only - Dec 1 3:30 0 -
238 Rule HK 1947 only - Apr 13 3:30 1:00 S
239 Rule HK 1947 only - Dec 30 3:30 0 -
240 Rule HK 1948 only - May 2 3:30 1:00 S
241 Rule HK 1948 1952 - Oct lastSun 3:30 0 -
242 Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
243 Rule HK 1953 only - Nov 1 3:30 0 -
244 Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
245 Rule HK 1954 only - Oct 31 3:30 0 -
246 Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
247 Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S
248 Rule HK 1965 1977 - Oct Sun>=16 3:30 0 -
249 Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
250 Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
251 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
252 Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
253 8:00 HK HK%sT
255 # Macao
256 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
257 Rule Macao 1912 only - Jan 1 0:00 0 S
258 Rule Macao 1961 1962 - Mar Sun>=16 3:30 1:00 D
259 Rule Macao 1961 1964 - Nov Sun>=1 3:30 0 S
260 Rule Macao 1963 only - Mar Sun>=16 0:00 1:00 D
261 Rule Macao 1964 only - Mar Sun>=16 3:30 1:00 D
262 Rule Macao 1965 only - Mar Sun>=16 0:00 1:00 D
263 Rule Macao 1965 only - Oct 31 0:00 0 S
264 Rule Macao 1966 1971 - Apr Sun>=16 3:30 1:00 D
265 Rule Macao 1966 1971 - Oct Sun>=16 3:30 0 S
266 Rule Macao 1972 1974 - Apr Sun>=15 0:00 1:00 D
267 Rule Macao 1972 1973 - Oct Sun>=15 0:00 0 S
268 Rule Macao 1974 1977 - Oct Sun>=15 3:30 0 S
269 Rule Macao 1975 1977 - Apr Sun>=15 3:30 1:00 D
270 Rule Macao 1978 1980 - Apr Sun>=15 0:00 1:00 D
271 Rule Macao 1978 1980 - Oct Sun>=15 0:00 0 S
272 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
273 Zone Asia/Macao 7:34:20 - LMT 1912
274 8:00 Macao C%sT
277 ###############################################################################
279 # Cyprus
280 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
281 Rule Cyprus 1921 only - Nov 14 0:00 0 -
282 Rule Cyprus 1975 only - Apr 13 0:00 1:00 " DST"
283 Rule Cyprus 1975 only - Oct 12 0:00 0 -
284 Rule Cyprus 1976 only - May 15 0:00 1:00 " DST"
285 Rule Cyprus 1976 only - Oct 11 0:00 0 -
286 Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 " DST"
287 Rule Cyprus 1977 only - Sep 25 0:00 0 -
288 Rule Cyprus 1978 only - Oct 2 0:00 0 -
289 Rule Cyprus 1979 max - Sep lastSun 0:00 0 -
290 Rule Cyprus 1981 max - Mar lastSun 0:00 1:00 " DST"
291 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
292 Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
293 2:00 Cyprus EET%s
295 # Georgia
296 # From Paul Eggert <eggert@twinsun.com> (1994-11-19):
297 # Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
298 # an hour recently, due to a law proposed by Zurab Murvanidze,
299 # an MP who went on a hunger strike for 11 days to force discussion about it!
300 # We have no details, but we'll guess they didn't move the clocks back in fall.
301 #
302 # From Paul Eggert (1995-11-13):
303 # usno1995 has Georgia at 4:00. Guess that Georgia stopped transitions
304 # after spring 1994 (thus sticking at 4:00).
305 # Most likely we're still missing some rule changes between 1991 and 1994.
306 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
307 Zone Asia/Tbilisi 2:59:16 - LMT 1880
308 2:59 - LST 1924 May 2
309 3:00 - TBSK 1957 Mar
310 4:00 Russia TBS%s 1991 Mar 31 2:00s
311 3:00 1:00 TBSD 1991 Sep 29 2:00s
312 3:00 Russia TBS%s 1994 Sep 25 2:00s
313 4:00 - TBSK
315 # India
316 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
317 Zone Asia/Calcutta 5:53:28 - LMT 1880
318 5:53 - CMT 1941 Oct # Calcutta Mean Time
319 6:30 - BMT 1942 May 15
320 5:30 - IST 1942 Sep
321 5:30 1:00 IST 1945 Oct 15
322 5:30 - IST
323 # The following are like Asia/Calcutta:
324 # Andaman Is
325 # Lakshadweep (Laccadive, Minicoy and Amindivi Is)
326 # Nicobar Is
328 # Indonesia
329 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
330 Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
331 7:07 - JMT 1924 Jan 1 0:13
332 7:20 - JVT 1932 Nov
333 7:30 - JVT 1942 Mar 23
334 9:00 - JST 1945 Aug
335 7:30 - JVT 1948 May
336 8:00 - JVT 1950 May
337 7:30 - JVT 1964
338 7:00 - JVT
339 Zone Asia/Ujung_Pandang 7:57:36 - LMT 1920
340 7:58 - MMT 1932 Nov # Macassar Mean Time
341 8:00 - BNT 1942 Feb 9
342 9:00 - JST 1945 Aug
343 8:00 - BNT
344 Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
345 9:00 - MLT 1944
346 9:30 - CST 1964
347 9:00 - MLT
349 # Iran
350 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
351 Rule Iran 1977 only - Nov 1 0:00 0 S
352 Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
353 Rule Iran 1978 only - Oct 21 0:00 0 S
354 Rule Iran 1979 only - Sep 19 0:00 0 S
355 Rule Iran 1980 only - Sep 23 0:00 0 S
356 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
357 Zone Asia/Tehran 3:25:44 - LMT 1916
358 3:26 - TMT 1946
359 3:30 - IST 1977 Nov
360 4:00 Iran G%sT 1979
361 3:30 Iran I%sT
363 # Iraq
364 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
365 Rule Iraq 1982 only - May 1 0:00 1:00 D
366 Rule Iraq 1982 1984 - Oct 1 0:00 0 S
367 Rule Iraq 1983 only - Mar 31 0:00 1:00 D
368 Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
369 Rule Iraq 1985 max - Sep lastSun 1:00s 0 S
370 Rule Iraq 1986 max - Mar lastSun 1:00s 1:00 D
371 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
372 Zone Asia/Baghdad 2:57:40 - LMT 1890
373 2:58 - BMT 1918 # Baghdad Mean Time
374 3:00 - AST 1982 May
375 3:00 Iraq A%sT
378 ###############################################################################
380 # Israel
382 # From U. S. Naval Observatory (January 19, 1989):
383 # ISRAEL 2 H AHEAD OF UTC
384 # ISRAEL 3 H AHEAD OF UTC APR 10 - SEP 3
386 # From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
387 #
388 # Shanks gives the following rules for Jerusalem from 1918 through 1991.
389 # After 1989 Shanks often disagrees with Silverberg; we go with Silverberg.
391 # From Shanks (1991):
392 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
393 Rule Zion 1918 only - Jan 1 0:00 0 S
394 Rule Zion 1940 only - Jun 1 0:00 1:00 D
395 Rule Zion 1942 1944 - Nov 1 0:00 0 S
396 Rule Zion 1943 only - Apr 1 2:00 1:00 D
397 Rule Zion 1944 only - Apr 1 0:00 1:00 D
398 Rule Zion 1945 only - Apr 16 0:00 1:00 D
399 Rule Zion 1945 only - Nov 1 2:00 0 S
400 Rule Zion 1946 only - Apr 16 2:00 1:00 D
401 Rule Zion 1946 only - Nov 1 0:00 0 S
402 Rule Zion 1948 only - May 23 0:00 2:00 DD
403 Rule Zion 1948 only - Sep 1 0:00 1:00 D
404 Rule Zion 1948 1949 - Nov 1 2:00 0 S
405 Rule Zion 1949 only - May 1 0:00 1:00 D
406 Rule Zion 1950 only - Apr 16 0:00 1:00 D
407 Rule Zion 1950 only - Sep 15 3:00 0 S
408 Rule Zion 1951 only - Apr 1 0:00 1:00 D
409 Rule Zion 1951 only - Nov 11 3:00 0 S
410 Rule Zion 1952 only - Apr 20 2:00 1:00 D
411 Rule Zion 1952 only - Oct 19 3:00 0 S
412 Rule Zion 1953 only - Apr 12 2:00 1:00 D
413 Rule Zion 1953 only - Sep 13 3:00 0 S
414 Rule Zion 1954 only - Jun 13 0:00 1:00 D
415 Rule Zion 1954 only - Sep 12 0:00 0 S
416 Rule Zion 1955 only - Jun 11 2:00 1:00 D
417 Rule Zion 1955 only - Sep 11 0:00 0 S
418 Rule Zion 1956 only - Jun 3 0:00 1:00 D
419 Rule Zion 1956 only - Sep 30 3:00 0 S
420 Rule Zion 1957 only - Apr 29 2:00 1:00 D
421 Rule Zion 1957 only - Sep 22 0:00 0 S
422 Rule Zion 1974 only - Jul 7 0:00 1:00 D
423 Rule Zion 1974 only - Oct 13 0:00 0 S
424 Rule Zion 1975 only - Apr 20 0:00 1:00 D
425 Rule Zion 1975 only - Aug 31 0:00 0 S
426 Rule Zion 1985 only - Apr 14 0:00 1:00 D
427 Rule Zion 1985 only - Sep 15 0:00 0 S
428 Rule Zion 1986 only - May 18 0:00 1:00 D
429 Rule Zion 1986 only - Sep 7 0:00 0 S
430 Rule Zion 1987 only - Apr 15 0:00 1:00 D
431 Rule Zion 1987 only - Sep 13 0:00 0 S
432 Rule Zion 1988 only - Apr 9 0:00 1:00 D
433 Rule Zion 1988 only - Sep 3 0:00 0 S
434 #Rule Zion 1989 only - Apr 29 0:00 1:00 D
435 #Rule Zion 1989 only - Sep 2 0:00 0 S
436 #Rule Zion 1990 only - Mar 25 0:00 1:00 D
437 #Rule Zion 1990 only - Aug 26 0:00 0 S
438 #Rule Zion 1991 only - Mar 10 0:00 1:00 D
439 #Rule Zion 1991 only - Sep 1 0:00 0 S
441 # From Ephraim Silverberg (1996-01-02):
442 #
443 # According to the Office of the Secretary General of the Ministry of
444 # Interior, there is NO set rule for Daylight-Savings/Standard time changes.
445 # Each year they decide anew what havoc to wreak on the country. However,
446 # there is a "supposed" set of rules which is subject to change depending
447 # on the party the Minister of Interior, the size of the coalition
448 # government, the phase of the moon and the direction of the wind. Hence,
449 # changes may need to be made on a semi-annual basis. One thing is entrenched
450 # in law, however: that there must be at least 150 days of daylight savings
451 # time annually. Ever since 1993, the change to daylight savings time has
452 # been from midnight Thursday night to 1 a.m. Friday morning and the change
453 # back to standard time on Saturday night from midnight daylight savings time
454 # to 11 p.m. standard time. 1996 is an exception to this rule where the
455 # change back to standard time takes place on Sunday night instead of Saturday
456 # night to avoid conflicts with the Jewish New Year.
458 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
459 Rule Zion 1989 only - Apr 30 0:00 1:00 D
460 Rule Zion 1989 only - Sep 3 0:00 0:00 S
461 Rule Zion 1990 only - Mar 25 0:00 1:00 D
462 Rule Zion 1990 only - Aug 26 0:00 0:00 S
463 Rule Zion 1991 only - Mar 24 0:00 1:00 D
464 Rule Zion 1991 only - Sep 1 0:00 0:00 S
465 Rule Zion 1992 only - Mar 29 0:00 1:00 D
466 Rule Zion 1992 only - Sep 6 0:00 0:00 S
467 Rule Zion 1993 only - Apr 2 0:00 1:00 D
468 Rule Zion 1993 only - Sep 5 0:00 0:00 S
470 # The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
471 # Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
472 # calling the switchboard at 972-2-701411 and asking for the spokeswoman.
474 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
475 Rule Zion 1994 only - Apr 1 0:00 1:00 D
476 Rule Zion 1994 only - Aug 28 0:00 0:00 S
477 Rule Zion 1995 only - Mar 31 0:00 1:00 D
478 Rule Zion 1995 only - Sep 3 0:00 0:00 S
480 # The dates for 1996-1998 were also obtained from Office of the Spokeswoman
481 # for the Ministry of Interior, Jerusalem, Israel. The official announcement
482 # can be viewed (in Hebrew) at the following URL:
483 #
484 # ftp://ftp.huji.ac.il/pub/misc/timezones/announcements/1996-1998.ps.gz
485 #
486 # Emptor Caveat: The dates for the years 1996-1998 were originally announced
487 # on August 31, 1995, by the previous Minister of Interior. The new Minister
488 # of Interior changed the dates on January 1, 1996, to take into account the
489 # desires of certain portions of Israeli society (the next election is in the
490 # Fall of 1996). After this (1996) year's Daylight Savings Time is over, the
491 # new minister has announced that a study will be conducted as to the wishes of
492 # the populace regarding the length of Daylight Savings Time and the Interior
493 # Committee will meet to review the results of the study and make any necessary
494 # changes to the 1997-1998 dates. Never a dull moment in the State of Israel.
496 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
497 Rule Zion 1996 1998 - Mar Fri>=14 0:00 1:00 D
498 Rule Zion 1996 only - Sep 16 0:00 0:00 S
499 Rule Zion 1997 1998 - Oct Sun>=14 0:00 0:00 S
501 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
502 Zone Asia/Jerusalem 2:20:56 - LMT 1880
503 2:21 - JMT 1918
504 2:00 Zion I%sT
507 ###############################################################################
509 # Japan
511 # `9:00' and `JST' is from Guy Harris.
513 # From Paul Eggert <eggert@twinsun.com> (1995-03-06):
514 # Today's _Asahi Evening News_ (page 4) reports that Japan had
515 # daylight saving between 1948 and 1951, but ``the system was discontinued
516 # because the public believed it would lead to longer working hours.''
517 # Shanks writes that daylight saving in Japan during those years was as follows:
518 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
519 #Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
520 #Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
521 #Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
522 #Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
523 # but the only locations using it were US military bases.
524 # We go with Shanks and omit daylight saving in those years for Asia/Tokyo.
525 #
526 # The same news article also reports that Japan is likely to go on DST in 1996
527 # as follows, where I've guessed the AT and LETTER/S columns:
528 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
529 #Rule Japan 1996 max - Apr Sun>=1 2:00 1:00 D
530 #Rule Japan 1996 max - Oct lastSun 2:00 0 S
532 # From Shanks (1991):
533 # Japan switched from the Japanese calendar on 1893 Jan 1.
534 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
535 Zone Asia/Tokyo 9:19:04 - LMT 1896
536 9:00 - JST
537 # If Japan adopts DST in 1996, replace the above line with the following lines:
538 # 9:00 - JST 1996
539 # 9:00 Japan J%sT
540 # and uncomment the two `Rule' lines commented out above.
542 # From Paul Eggert <eggert@twinsun.com> (1995-12-19):
543 # Shanks says that the far southern Ryukyu Is (Nansei-Shoto) are 8:00,
544 # but we haven't confirmed this.
545 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
546 #Zone Asia/Ishigaki 8:16:36 - LMT 1896
547 # 8:00 - CST
548 # There is no information for Marcus.
549 # Other Japanese possessions are probably like Asia/Tokyo.
551 # Jordan
552 # From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
553 # Most likely Shanks is merely guessing dates from 1992 on.
554 # From Shanks (1991):
555 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
556 Rule Jordan 1931 only - Jan 1 0:00 0 -
557 Rule Jordan 1973 only - Jun 6 0:00 1:00 " DST"
558 Rule Jordan 1973 1975 - Oct 1 0:00 0 -
559 Rule Jordan 1974 1977 - May 1 0:00 1:00 " DST"
560 Rule Jordan 1976 only - Nov 1 0:00 0 -
561 Rule Jordan 1977 only - Oct 1 0:00 0 -
562 Rule Jordan 1978 only - Apr 30 0:00 1:00 " DST"
563 Rule Jordan 1978 only - Sep 30 0:00 0 -
564 Rule Jordan 1985 only - Apr 1 0:00 1:00 " DST"
565 Rule Jordan 1985 only - Oct 1 0:00 0 -
566 Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 " DST"
567 Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
568 Rule Jordan 1989 only - May 8 0:00 1:00 " DST"
569 Rule Jordan 1990 only - Apr 27 0:00 1:00 " DST"
570 Rule Jordan 1991 only - Apr 19 0:00 1:00 " DST"
571 Rule Jordan 1991 only - Sep 27 0:00 0 -
572 Rule Jordan 1992 max - Apr Fri>=1 0:00 1:00 " DST"
573 Rule Jordan 1992 max - Oct Fri>=1 0:00 0 -
574 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
575 Zone Asia/Amman 2:23:44 - LMT 1931
576 2:00 Jordan EET%s
578 # Kazakhstan
579 # From Shanks (1991):
580 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
581 Zone Asia/Alma-Ata 5:07:48 - LMT 1924 May 2
582 5:00 - AASK 1957 Mar
583 6:00 Russia AAS%s
584 # Shanks has Alma-Ata switching to 5:00 in 1991,
585 # but usno1995 has Kazakhstan at 6:00. Ignore the 1991 switch for now.
587 # Kirgizstan
588 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
589 Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
590 5:00 - FSK 1957 Mar # Frunze
591 6:00 Russia FS%s 1991 Mar 31 2:00s
592 5:00 1:00 FSD 1991 Sep 29 2:00s
593 5:00 Russia BS%s
595 ###############################################################################
597 # Korea
599 # From Guy Harris:
600 # According to someone at the Korean Times in San Francisco,
601 # Daylight Savings Time was not observed until 1987. He did not know
602 # at what time of day DST starts or ends.
604 # From Shanks (1991):
605 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
606 Rule ROK 1960 only - May 15 0:00 1:00 D
607 Rule ROK 1960 only - Sep 13 0:00 0 S
608 Rule ROK 1987 1988 - May Sun<=14 0:00 1:00 D
609 Rule ROK 1987 1988 - Oct Sun<=14 0:00 0 S
611 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
612 Zone Asia/Seoul 8:27:52 - LMT 1890
613 8:30 - KST 1904 Dec
614 9:00 - KST 1928
615 8:30 - KST 1932
616 9:00 - KST 1954 Mar 21
617 8:00 ROK K%sT 1961 Aug 10
618 8:30 - KST 1968 Oct
619 9:00 ROK K%sT
620 Zone Asia/Pyongyang 8:23:00 - LMT 1890
621 8:30 - KST 1904 Dec
622 9:00 - KST 1928
623 8:30 - KST 1932
624 9:00 - KST 1954 Mar 21
625 8:00 - KST 1961 Aug 10
626 9:00 - KST
628 ###############################################################################
630 # Kuwait
631 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
632 Zone Asia/Kuwait 3:11:56 - LMT 1950
633 3:00 - AST
635 # Laos
636 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
637 Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9
638 7:06 - SMT 1911 Mar 11 0:01 # Saigon MT
639 7:00 - ICT 1912 May
640 8:00 - ICT 1931 May
641 7:00 - ICT
643 # Lebanon
644 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
645 Rule Lebanon 1880 only - Jan 1 0:00 0 -
646 Rule Lebanon 1920 only - Mar 28 0:00 1:00 " DST"
647 Rule Lebanon 1920 only - Oct 25 0:00 0 -
648 Rule Lebanon 1921 only - Apr 3 0:00 1:00 " DST"
649 Rule Lebanon 1921 only - Oct 3 0:00 0 -
650 Rule Lebanon 1922 only - Mar 26 0:00 1:00 " DST"
651 Rule Lebanon 1922 only - Oct 8 0:00 0 -
652 Rule Lebanon 1923 only - Apr 22 0:00 1:00 " DST"
653 Rule Lebanon 1923 only - Sep 16 0:00 0 -
654 Rule Lebanon 1957 1961 - May 1 0:00 1:00 " DST"
655 Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
656 Rule Lebanon 1972 only - Jun 22 0:00 1:00 " DST"
657 Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
658 Rule Lebanon 1973 1977 - May 1 0:00 1:00 " DST"
659 Rule Lebanon 1978 only - Apr 30 0:00 1:00 " DST"
660 Rule Lebanon 1978 only - Sep 30 0:00 0 -
661 Rule Lebanon 1984 1987 - May 1 0:00 1:00 " DST"
662 Rule Lebanon 1984 max - Oct 16 0:00 0 -
663 Rule Lebanon 1988 only - Jun 1 0:00 1:00 " DST"
664 Rule Lebanon 1989 only - May 10 0:00 1:00 " DST"
665 Rule Lebanon 1990 max - May 1 0:00 1:00 " DST"
666 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
667 Zone Asia/Beirut 2:22:00 - LMT 1880
668 2:00 Lebanon EET%s
670 # Malaysia
671 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
672 Zone Asia/Kuala_Lumpur 6:46:48 - LMT 1880
673 6:55 - SMT 1905 Jun
674 7:00 - SGT 1933
675 7:20 - SGT 1942 Feb 15
676 9:00 - JST 1945 Sep 2
677 7:20 - SGT 1950
678 7:30 - SGT 1982 May
679 8:00 - SGT
681 # Maldives
682 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
683 Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
684 4:54 - MMT 1960
685 5:00 - PKT
687 # Mongolia
688 # Let's comment out the western and eastern Mongolian time zones
689 # till we know what their principal towns are.
690 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
691 Rule Mongol 1978 only - Jan 1 0:00 0 S
692 Rule Mongol 1981 1984 - Apr 1 0:00 1:00 T
693 Rule Mongol 1981 1984 - Oct 1 0:00 0 S
694 Rule Mongol 1985 max - Mar lastSun 2:00 1:00 T
695 Rule Mongol 1985 max - Sep lastSun 3:00 0 S
696 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
697 #Zone Asia/Dariv 6:14:32 - LMT 1905 Aug
698 # 6:00 - DST 1978
699 # 7:00 Mongol D%sT
700 Zone Asia/Ulan_Bator 7:07:32 - LMT 1905 Aug
701 7:00 - UST 1978
702 8:00 Mongol U%sT
703 #Zone Asia/Baruun-Urt 7:33:00 - LMT 1905 Aug
704 # 8:00 - BST 1978
705 # 9:00 Mongol B%sT
707 # Nepal
708 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
709 Zone Asia/Katmandu 5:41:16 - LMT 1920
710 5:30 - IST 1986
711 5:45 - NPT
713 # Oman
714 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
715 Zone Asia/Muscat 3:54:20 - LMT 1920
716 4:00 - GST
718 # Pakistan
719 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
720 Zone Asia/Karachi 4:28:12 - LMT 1907
721 5:30 - IST 1942 Sep
722 5:30 1:00 IST 1945 Oct 15
723 5:30 - IST 1951 Sep 30
724 5:00 - PKT
726 # Palestine
727 # These rules for Egypt are stolen from the `africa' file.
728 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
729 Rule Egypt 1957 only - May 10 0:00 1:00 " DST"
730 Rule Egypt 1957 1958 - Oct 1 0:00 0 -
731 Rule Egypt 1958 only - May 1 0:00 1:00 " DST"
732 Rule Egypt 1959 1981 - May 1 1:00 1:00 " DST"
733 Rule Egypt 1959 1965 - Sep 30 3:00 0 -
734 Rule Egypt 1966 max - Oct 1 3:00 0 -
735 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
736 Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
737 2:00 - EET 1957 May 10
738 2:00 Egypt EET%s 1967 Jun 30
739 2:00 Zion I%sT
740 # This will undoubtedly change soon.
742 # Paracel Is
743 # no information
745 # Philippines
746 # Howse writes (p 162) that until 1844 the Philippines kept American date.
747 # The rest of this data is from Shanks.
748 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
749 Rule Phil 1899 only - May 11 0:00 0 S
750 Rule Phil 1936 only - Nov 1 0:00 1:00 D
751 Rule Phil 1937 only - Feb 1 0:00 0 S
752 Rule Phil 1954 only - Apr 12 0:00 1:00 D
753 Rule Phil 1954 only - Jul 1 0:00 0 S
754 Rule Phil 1978 only - Mar 22 0:00 1:00 D
755 Rule Phil 1978 only - Sep 21 0:00 0 S
756 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
757 Zone Asia/Manila -15:56:00 - LMT 1844
758 8:04:00 - LMT 1899 May 11
759 8:00 Phil P%sT 1942 May
760 9:00 - JST 1944 Nov
761 8:00 Phil P%sT
763 # Qatar
764 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
765 Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah
766 4:00 - GST 1972 Jun
767 3:00 - AST
769 # Saudi Arabia
770 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
771 Zone Asia/Riyadh 3:06:52 - LMT 1950
772 3:00 - AST
774 # Singapore
775 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
776 Zone Asia/Singapore 6:55:24 - LMT 1880
777 6:55 - SMT 1905 Jun
778 7:00 - SGT 1933
779 7:20 - SGT 1942 Feb 15
780 9:00 - JST 1945 Sep 2
781 7:20 - SGT 1950
782 7:30 - SGT 1982 May
783 8:00 - SGT
785 # Spratly Is
786 # no information
788 # Sri Lanka
789 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
790 Zone Asia/Colombo 5:19:24 - LMT 1880
791 5:20 - JMT 1906
792 5:30 - IST 1942 Jan 5
793 5:30 0:30 IHST 1942 Sep
794 5:30 1:00 IST 1945 Oct 16 2:00
795 5:30 - IST
797 # Syria
798 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
799 Rule Syria 1920 only - Jan 1 0:00 0 -
800 Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 " DST"
801 Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
802 Rule Syria 1962 only - Apr 29 2:00 1:00 " DST"
803 Rule Syria 1962 only - Oct 1 2:00 0 -
804 Rule Syria 1963 1965 - May 1 2:00 1:00 " DST"
805 Rule Syria 1963 only - Sep 30 2:00 0 -
806 Rule Syria 1964 only - Oct 1 2:00 0 -
807 Rule Syria 1965 only - Sep 30 2:00 0 -
808 Rule Syria 1966 only - Apr 24 2:00 1:00 " DST"
809 Rule Syria 1966 1976 - Oct 1 2:00 0 -
810 Rule Syria 1967 1978 - May 1 2:00 1:00 " DST"
811 Rule Syria 1977 1978 - Sep 1 2:00 0 -
812 Rule Syria 1983 1984 - Apr 9 2:00 1:00 " DST"
813 Rule Syria 1983 1984 - Oct 1 2:00 0 -
814 Rule Syria 1986 only - Feb 16 2:00 1:00 " DST"
815 Rule Syria 1986 only - Oct 9 2:00 0 -
816 Rule Syria 1987 only - Mar 1 2:00 1:00 " DST"
817 Rule Syria 1987 1988 - Oct 31 2:00 0 -
818 Rule Syria 1988 only - Mar 15 2:00 1:00 " DST"
819 Rule Syria 1989 only - Mar 31 2:00 1:00 " DST"
820 Rule Syria 1989 only - Oct 1 2:00 0 -
821 Rule Syria 1990 max - Apr 1 2:00 1:00 " DST"
822 Rule Syria 1990 max - Sep 30 2:00 0 -
823 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
824 Zone Asia/Damascus 2:25:12 - LMT 1920
825 2:00 Syria EET%s
827 # Tajikistan
828 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
829 Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
830 5:00 - DSK 1957 Mar
831 6:00 Russia DS%s 1991
832 6:00 - DSK
833 # Shanks has Dushanbe at 5:00 (6:00 summer) after 1991 Sep 29 3:00,
834 # but usno1995 has it at 6:00. Go with usno1995.
836 # Thailand
837 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
838 Zone Asia/Bangkok 6:42:04 - LMT 1880
839 6:42 - BMT 1920 Apr
840 7:00 - ICT
842 # Turkmenistan
843 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
844 Zone Asia/Ashkhabad 3:53:32 - LMT 1924 May 2
845 4:00 - ASK 1957 Mar
846 5:00 Russia AS%s 1991
847 5:00 - ASK
848 # Shanks has Ashkhabad at 4:00 (5:00 summer) after 1991 Sep 20 3:00,
849 # but usno has it at 5:00. Go with usno1995.
851 # United Arab Emirates
852 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
853 Zone Asia/Dubai 3:41:12 - LMT 1920
854 4:00 - GST
856 # Uzbekistan
857 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
858 Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
859 5:00 - TSK 1957 Mar
860 6:00 Russia TS%s 1991 Mar 31 2:00s
861 5:00 1:00 TSD 1991 Sep 29 2:00s
862 5:00 - TSK
863 # Shanks has Tashkent using DST after 1991, but usno1995 says they don't.
864 # Go with usno1995.
866 # Vietnam
867 # From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
868 # Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
869 # We'll stick with the traditional name for now.
870 # From Shanks (1991):
871 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
872 Zone Asia/Saigon 7:06:40 - LMT 1906 Jun 9
873 7:06 - SMT 1911 Mar 11 0:01 # Saigon MT
874 7:00 - ICT 1912 May
875 8:00 - ICT 1931 May
876 7:00 - ICT
878 # Yemen
879 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
880 Zone Asia/Aden 3:00:48 - LMT 1950
881 3:00 - AST