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# @(#)asia 7.18
# This data is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
# tz@elsie.nci.nih.gov for general use in the future).
# From Paul Eggert <eggert@twinsun.com> (1995-12-19):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks, The International Atlas (3rd edition),
# San Diego: ACS Publications, Inc. (1991).
# Except where otherwise noted, it is the source for the data below.
#
# Another source occasionally used is Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and the discovery of the longitude,
# Oxford University Press (1980).
#
# I invented the abbreviations marked `*' in the following table;
# the rest are from earlier versions of this file, or from other sources.
# Corrections are welcome!
# std dst
# LMT Local Mean Time
# LST Local Star Time (Russian ``mestnoe zvezdnoe vremya'')
# 2:00 EET EET DST Eastern European Time
# 2:00 IST IDT Israel
# 3:00 AST ADT Arabia*
# 3:00 BSK BSD Baku (was 4:00)*
# 3:30 IST IDT Iran
# 4:00 TBSK TBSD Tbilisi (was 3:00)*
# 4:00 YSK YSD Yerevan (was 3:00)*
# 4:00 GST GDT Gulf*
# 4:30 AFT Afghanistan*
# 5:00 ASK ASD Ashkhabad (was 4:00)*
# 5:00 BSK BSD Bishkek (was 6:00) (was FSK, FSD)*
# 5:00 PKT Pakistan*
# 5:00 TSK TSD Tashkent (was 6:00)*
# 5:30 IST IST India
# 5:45 NPT Nepal*
# 6:00 AASK AASD Alma-Ata (was 5:00)*
# 6:00 BGT Bengal, Bangladesh*
# 6:00 DSK DSD Dushanbe (was 5:00)*
# 6:30 BMT Burma*
# 7:00 ICT Indochina*
# 7:00 JVT Java*
# 8:00 BNT Borneo, Brunei*
# 8:00 CST CDT China
# 8:00 HKT HKST Hong Kong
# 8:00 PST PDT Philippines*
# 8:00 SGT Singapore
# 8:00 UST UDT Ulan Bator*
# 9:00 JST JDT Japan
# 9:00 KST KDT Korea
# 9:00 MLT Moluccas*
# 9:30 CST Australian Central Standard Time
#
# See the `europe' file for Russia and Turkey in Asia.
#
# See the `africa' file for Zone naming conventions.
# From Guy Harris:
# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
# additional information from Tom Yap, Sun Microsystems Intercontinental
# Technical Support (including a page from the Official Airline Guide -
# Worldwide Edition). The names for time zones are guesses.
###############################################################################
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Russia 1981 1984 - Apr 1 0:00 1:00 D
Rule Russia 1981 1983 - Oct 1 0:00 0 K
Rule Russia 1984 max - Sep lastSun 2:00s 0 K
Rule Russia 1985 max - Mar lastSun 2:00s 1:00 D
# Afghanistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kabul 4:36:48 - LMT 1890
4:00 - GST 1945
4:30 - AFT
# Armenia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
3:00 - YSK 1957 Mar
4:00 Russia YS%s
# Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991,
# but usno1995 has Armenia at 4:00 (with DST). Ignore the 1991 switch for now.
# Azerbaijan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Baku 3:19:24 - LMT 1924 May 2
3:00 - BSK 1957 Mar
4:00 Russia BS%s 1991 Mar 31 2:00s
3:00 1:00 BSD 1991 Sep 29 2:00s
3:00 - BSK
# Shanks has Baku using Russian DST rules after 1991,
# but usno1995 has Azerbaijan with no DST. Go with usno1995.
# Bahrain
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al-Manamah
4:00 - GST 1972 Jun
3:00 - AST
# Bangladesh
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dacca 6:01:40 - LMT 1890
5:53 - CMT 1941 Oct # Calcutta Mean Time
6:30 - BMT 1942 May 15
5:30 - IST 1942 Sep
6:30 - BMT 1951 Sep 30
6:00 - BGT
# Bhutan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Thimbu 5:58:36 - LMT 1947 Aug 15
5:30 - IST 1987 Oct
6:00 - BGT
# British Indian Ocean Territory
# From Whitman:
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Indian/Chagos 5:00 - PKT
# Brunei
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
7:30 - BNT 1933
8:00 - BNT
# Burma / Myanmar
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Rangoon 6:24:40 - LMT 1880
6:25 - RMT 1920
6:30 - BMT 1942 May
9:00 - JST 1945 May 3
6:30 - BMT
# Cambodia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
7:06 - SMT 1911 Mar 11 0:01 # Saigon MT
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# People's Republic of China
# From Guy Harris:
# People's Republic of China. Yes, they really have only one time zone.
# From Bob Devine (January 28, 1988):
# No they don't. See TIME mag, February 17, 1986 p.52. Even though
# China is across 4 physical time zones, before Feb 1, 1986 only the
# Peking (Bejing) time zone was recognized. Since that date, China
# has two of 'em -- Peking's and Urumqi (named after the capital of
# the Xinjiang Uighur Autonomous Region). I don't know about DST for it.
#
# . . .I just deleted the DST table and this editor makes it too
# painful to suck in another copy.. So, here is what I have for
# DST start/end dates for Peking's time zone (info from AP):
#
# 1986 May 4 - Sept 14
# 1987 mid-April - ??
# From U. S. Naval Observatory (January 19, 1989):
# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
# From Paul Eggert <eggert@twinsun.com> (1995-12-19):
# Shanks writes that China switched from the Chinese calendar on 1912 Feb 12.
# He also writes that China has had a single time zone since 1980 May 1,
# observing summer DST from 1986 through 1991; this contradicts Devine's
# note about Time magazine, though apparently _something_ happened in 1986.
# Go with Shanks for now. I made up names for the other pre-1980 time zones.
# From Shanks (1991):
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1928 only - Jan 1 0:00 0 S
Rule Shang 1940 only - Jun 3 0:00 1:00 D
Rule Shang 1940 1941 - Oct 1 0:00 0 S
Rule Shang 1941 only - Mar 16 0:00 1:00 D
Rule PRC 1949 only - Jan 1 0:00 0 S
Rule PRC 1986 only - May 4 0:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Harbin 8:26:44 - LMT 1928
8:30 - MAT 1932 Mar # Manchuria
8:00 - CST 1940
9:00 - KST 1966 May
8:30 - MAT 1980 May
8:00 PRC C%sT
Zone Asia/Shanghai 8:05:52 - LMT 1928
8:00 Shang C%sT 1949
8:00 PRC C%sT
Zone Asia/Chungking 7:06:20 - LMT 1928
7:00 - ICT 1980 May
8:00 PRC C%sT
Zone Asia/Urumqi 5:50:20 - LMT 1928
6:00 - URT 1980 May # Urumqi
8:00 PRC C%sT
Zone Asia/Kashgar 5:03:56 - LMT 1928
5:30 - ETT 1940 # Eastern Turkestan
5:00 - ETT 1980 May
8:00 PRC C%sT
###############################################################################
# Republic of China
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Taiwan 1896 only - Jan 1 0:00 0 S
Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
Rule Taiwan 1980 only - Jun 30 0:00 1:00 D
Rule Taiwan 1980 only - Sep 30 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Taipei 8:06:00 - LMT 1896
8:00 Taiwan C%sT
###############################################################################
# Hong Kong
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule HK 1904 only - Oct 30 0:00 0 -
Rule HK 1946 only - Apr 20 3:30 1:00 S
Rule HK 1946 only - Dec 1 3:30 0 -
Rule HK 1947 only - Apr 13 3:30 1:00 S
Rule HK 1947 only - Dec 30 3:30 0 -
Rule HK 1948 only - May 2 3:30 1:00 S
Rule HK 1948 1952 - Oct lastSun 3:30 0 -
Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
Rule HK 1953 only - Nov 1 3:30 0 -
Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
Rule HK 1954 only - Oct 31 3:30 0 -
Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S
Rule HK 1965 1977 - Oct Sun>=16 3:30 0 -
Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
8:00 HK HK%sT
# Macao
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macao 1912 only - Jan 1 0:00 0 S
Rule Macao 1961 1962 - Mar Sun>=16 3:30 1:00 D
Rule Macao 1961 1964 - Nov Sun>=1 3:30 0 S
Rule Macao 1963 only - Mar Sun>=16 0:00 1:00 D
Rule Macao 1964 only - Mar Sun>=16 3:30 1:00 D
Rule Macao 1965 only - Mar Sun>=16 0:00 1:00 D
Rule Macao 1965 only - Oct 31 0:00 0 S
Rule Macao 1966 1971 - Apr Sun>=16 3:30 1:00 D
Rule Macao 1966 1971 - Oct Sun>=16 3:30 0 S
Rule Macao 1972 1974 - Apr Sun>=15 0:00 1:00 D
Rule Macao 1972 1973 - Oct Sun>=15 0:00 0 S
Rule Macao 1974 1977 - Oct Sun>=15 3:30 0 S
Rule Macao 1975 1977 - Apr Sun>=15 3:30 1:00 D
Rule Macao 1978 1980 - Apr Sun>=15 0:00 1:00 D
Rule Macao 1978 1980 - Oct Sun>=15 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macao 7:34:20 - LMT 1912
8:00 Macao C%sT
###############################################################################
# Cyprus
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Cyprus 1921 only - Nov 14 0:00 0 -
Rule Cyprus 1975 only - Apr 13 0:00 1:00 " DST"
Rule Cyprus 1975 only - Oct 12 0:00 0 -
Rule Cyprus 1976 only - May 15 0:00 1:00 " DST"
Rule Cyprus 1976 only - Oct 11 0:00 0 -
Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 " DST"
Rule Cyprus 1977 only - Sep 25 0:00 0 -
Rule Cyprus 1978 only - Oct 2 0:00 0 -
Rule Cyprus 1979 max - Sep lastSun 0:00 0 -
Rule Cyprus 1981 max - Mar lastSun 0:00 1:00 " DST"
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
2:00 Cyprus EET%s
# Georgia
# From Paul Eggert <eggert@twinsun.com> (1994-11-19):
# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
# an hour recently, due to a law proposed by Zurab Murvanidze,
# an MP who went on a hunger strike for 11 days to force discussion about it!
# We have no details, but we'll guess they didn't move the clocks back in fall.
#
# From Paul Eggert (1995-11-13):
# usno1995 has Georgia at 4:00. Guess that Georgia stopped transitions
# after spring 1994 (thus sticking at 4:00).
# Most likely we're still missing some rule changes between 1991 and 1994.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tbilisi 2:59:16 - LMT 1880
2:59 - LST 1924 May 2
3:00 - TBSK 1957 Mar
4:00 Russia TBS%s 1991 Mar 31 2:00s
3:00 1:00 TBSD 1991 Sep 29 2:00s
3:00 Russia TBS%s 1994 Sep 25 2:00s
4:00 - TBSK
# India
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Calcutta 5:53:28 - LMT 1880
5:53 - CMT 1941 Oct # Calcutta Mean Time
6:30 - BMT 1942 May 15
5:30 - IST 1942 Sep
5:30 1:00 IST 1945 Oct 15
5:30 - IST
# The following are like Asia/Calcutta:
# Andaman Is
# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
# Nicobar Is
# Indonesia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
7:07 - JMT 1924 Jan 1 0:13
7:20 - JVT 1932 Nov
7:30 - JVT 1942 Mar 23
9:00 - JST 1945 Aug
7:30 - JVT 1948 May
8:00 - JVT 1950 May
7:30 - JVT 1964
7:00 - JVT
Zone Asia/Ujung_Pandang 7:57:36 - LMT 1920
7:58 - MMT 1932 Nov # Macassar Mean Time
8:00 - BNT 1942 Feb 9
9:00 - JST 1945 Aug
8:00 - BNT
Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
9:00 - MLT 1944
9:30 - CST 1964
9:00 - MLT
# Iran
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iran 1977 only - Nov 1 0:00 0 S
Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
Rule Iran 1978 only - Oct 21 0:00 0 S
Rule Iran 1979 only - Sep 19 0:00 0 S
Rule Iran 1980 only - Sep 23 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tehran 3:25:44 - LMT 1916
3:26 - TMT 1946
3:30 - IST 1977 Nov
4:00 Iran G%sT 1979
3:30 Iran I%sT
# Iraq
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iraq 1982 only - May 1 0:00 1:00 D
Rule Iraq 1982 1984 - Oct 1 0:00 0 S
Rule Iraq 1983 only - Mar 31 0:00 1:00 D
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
Rule Iraq 1985 max - Sep lastSun 1:00s 0 S
Rule Iraq 1986 max - Mar lastSun 1:00s 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Baghdad 2:57:40 - LMT 1890
2:58 - BMT 1918 # Baghdad Mean Time
3:00 - AST 1982 May
3:00 Iraq A%sT
###############################################################################
# Israel
# From U. S. Naval Observatory (January 19, 1989):
# ISRAEL 2 H AHEAD OF UTC
# ISRAEL 3 H AHEAD OF UTC APR 10 - SEP 3
# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
#
# Shanks gives the following rules for Jerusalem from 1918 through 1991.
# After 1989 Shanks often disagrees with Silverberg; we go with Silverberg.
# From Shanks (1991):
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1918 only - Jan 1 0:00 0 S
Rule Zion 1940 only - Jun 1 0:00 1:00 D
Rule Zion 1942 1944 - Nov 1 0:00 0 S
Rule Zion 1943 only - Apr 1 2:00 1:00 D
Rule Zion 1944 only - Apr 1 0:00 1:00 D
Rule Zion 1945 only - Apr 16 0:00 1:00 D
Rule Zion 1945 only - Nov 1 2:00 0 S
Rule Zion 1946 only - Apr 16 2:00 1:00 D
Rule Zion 1946 only - Nov 1 0:00 0 S
Rule Zion 1948 only - May 23 0:00 2:00 DD
Rule Zion 1948 only - Sep 1 0:00 1:00 D
Rule Zion 1948 1949 - Nov 1 2:00 0 S
Rule Zion 1949 only - May 1 0:00 1:00 D
Rule Zion 1950 only - Apr 16 0:00 1:00 D
Rule Zion 1950 only - Sep 15 3:00 0 S
Rule Zion 1951 only - Apr 1 0:00 1:00 D
Rule Zion 1951 only - Nov 11 3:00 0 S
Rule Zion 1952 only - Apr 20 2:00 1:00 D
Rule Zion 1952 only - Oct 19 3:00 0 S
Rule Zion 1953 only - Apr 12 2:00 1:00 D
Rule Zion 1953 only - Sep 13 3:00 0 S
Rule Zion 1954 only - Jun 13 0:00 1:00 D
Rule Zion 1954 only - Sep 12 0:00 0 S
Rule Zion 1955 only - Jun 11 2:00 1:00 D
Rule Zion 1955 only - Sep 11 0:00 0 S
Rule Zion 1956 only - Jun 3 0:00 1:00 D
Rule Zion 1956 only - Sep 30 3:00 0 S
Rule Zion 1957 only - Apr 29 2:00 1:00 D
Rule Zion 1957 only - Sep 22 0:00 0 S
Rule Zion 1974 only - Jul 7 0:00 1:00 D
Rule Zion 1974 only - Oct 13 0:00 0 S
Rule Zion 1975 only - Apr 20 0:00 1:00 D
Rule Zion 1975 only - Aug 31 0:00 0 S
Rule Zion 1985 only - Apr 14 0:00 1:00 D
Rule Zion 1985 only - Sep 15 0:00 0 S
Rule Zion 1986 only - May 18 0:00 1:00 D
Rule Zion 1986 only - Sep 7 0:00 0 S
Rule Zion 1987 only - Apr 15 0:00 1:00 D
Rule Zion 1987 only - Sep 13 0:00 0 S
Rule Zion 1988 only - Apr 9 0:00 1:00 D
Rule Zion 1988 only - Sep 3 0:00 0 S
#Rule Zion 1989 only - Apr 29 0:00 1:00 D
#Rule Zion 1989 only - Sep 2 0:00 0 S
#Rule Zion 1990 only - Mar 25 0:00 1:00 D
#Rule Zion 1990 only - Aug 26 0:00 0 S
#Rule Zion 1991 only - Mar 10 0:00 1:00 D
#Rule Zion 1991 only - Sep 1 0:00 0 S
# From Ephraim Silverberg (1996-01-02):
#
# According to the Office of the Secretary General of the Ministry of
# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
# Each year they decide anew what havoc to wreak on the country. However,
# there is a "supposed" set of rules which is subject to change depending
# on the party the Minister of Interior, the size of the coalition
# government, the phase of the moon and the direction of the wind. Hence,
# changes may need to be made on a semi-annual basis. One thing is entrenched
# in law, however: that there must be at least 150 days of daylight savings
# time annually. Ever since 1993, the change to daylight savings time has
# been from midnight Thursday night to 1 a.m. Friday morning and the change
# back to standard time on Saturday night from midnight daylight savings time
# to 11 p.m. standard time. 1996 is an exception to this rule where the
# change back to standard time takes place on Sunday night instead of Saturday
# night to avoid conflicts with the Jewish New Year.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1989 only - Apr 30 0:00 1:00 D
Rule Zion 1989 only - Sep 3 0:00 0:00 S
Rule Zion 1990 only - Mar 25 0:00 1:00 D
Rule Zion 1990 only - Aug 26 0:00 0:00 S
Rule Zion 1991 only - Mar 24 0:00 1:00 D
Rule Zion 1991 only - Sep 1 0:00 0:00 S
Rule Zion 1992 only - Mar 29 0:00 1:00 D
Rule Zion 1992 only - Sep 6 0:00 0:00 S
Rule Zion 1993 only - Apr 2 0:00 1:00 D
Rule Zion 1993 only - Sep 5 0:00 0:00 S
# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
# calling the switchboard at 972-2-701411 and asking for the spokeswoman.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1994 only - Apr 1 0:00 1:00 D
Rule Zion 1994 only - Aug 28 0:00 0:00 S
Rule Zion 1995 only - Mar 31 0:00 1:00 D
Rule Zion 1995 only - Sep 3 0:00 0:00 S
# The dates for 1996-1998 were also obtained from Office of the Spokeswoman
# for the Ministry of Interior, Jerusalem, Israel. The official announcement
# can be viewed (in Hebrew) at the following URL:
#
# ftp://ftp.huji.ac.il/pub/misc/timezones/announcements/1996-1998.ps.gz
#
# Emptor Caveat: The dates for the years 1996-1998 were originally announced
# on August 31, 1995, by the previous Minister of Interior. The new Minister
# of Interior changed the dates on January 1, 1996, to take into account the
# desires of certain portions of Israeli society (the next election is in the
# Fall of 1996). After this (1996) year's Daylight Savings Time is over, the
# new minister has announced that a study will be conducted as to the wishes of
# the populace regarding the length of Daylight Savings Time and the Interior
# Committee will meet to review the results of the study and make any necessary
# changes to the 1997-1998 dates. Never a dull moment in the State of Israel.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1996 1998 - Mar Fri>=14 0:00 1:00 D
Rule Zion 1996 only - Sep 16 0:00 0:00 S
Rule Zion 1997 1998 - Oct Sun>=14 0:00 0:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Jerusalem 2:20:56 - LMT 1880
2:21 - JMT 1918
2:00 Zion I%sT
###############################################################################
# Japan
# `9:00' and `JST' is from Guy Harris.
# From Paul Eggert <eggert@twinsun.com> (1995-03-06):
# Today's _Asahi Evening News_ (page 4) reports that Japan had
# daylight saving between 1948 and 1951, but ``the system was discontinued
# because the public believed it would lead to longer working hours.''
# Shanks writes that daylight saving in Japan during those years was as follows:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
#Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
#Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
#Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
#Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
# but the only locations using it were US military bases.
# We go with Shanks and omit daylight saving in those years for Asia/Tokyo.
#
# The same news article also reports that Japan is likely to go on DST in 1996
# as follows, where I've guessed the AT and LETTER/S columns:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
#Rule Japan 1996 max - Apr Sun>=1 2:00 1:00 D
#Rule Japan 1996 max - Oct lastSun 2:00 0 S
# From Shanks (1991):
# Japan switched from the Japanese calendar on 1893 Jan 1.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tokyo 9:19:04 - LMT 1896
9:00 - JST
# If Japan adopts DST in 1996, replace the above line with the following lines:
# 9:00 - JST 1996
# 9:00 Japan J%sT
# and uncomment the two `Rule' lines commented out above.
# From Paul Eggert <eggert@twinsun.com> (1995-12-19):
# Shanks says that the far southern Ryukyu Is (Nansei-Shoto) are 8:00,
# but we haven't confirmed this.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#Zone Asia/Ishigaki 8:16:36 - LMT 1896
# 8:00 - CST
# There is no information for Marcus.
# Other Japanese possessions are probably like Asia/Tokyo.
# Jordan
# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
# Most likely Shanks is merely guessing dates from 1992 on.
# From Shanks (1991):
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Jordan 1931 only - Jan 1 0:00 0 -
Rule Jordan 1973 only - Jun 6 0:00 1:00 " DST"
Rule Jordan 1973 1975 - Oct 1 0:00 0 -
Rule Jordan 1974 1977 - May 1 0:00 1:00 " DST"
Rule Jordan 1976 only - Nov 1 0:00 0 -
Rule Jordan 1977 only - Oct 1 0:00 0 -
Rule Jordan 1978 only - Apr 30 0:00 1:00 " DST"
Rule Jordan 1978 only - Sep 30 0:00 0 -
Rule Jordan 1985 only - Apr 1 0:00 1:00 " DST"
Rule Jordan 1985 only - Oct 1 0:00 0 -
Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 " DST"
Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
Rule Jordan 1989 only - May 8 0:00 1:00 " DST"
Rule Jordan 1990 only - Apr 27 0:00 1:00 " DST"
Rule Jordan 1991 only - Apr 19 0:00 1:00 " DST"
Rule Jordan 1991 only - Sep 27 0:00 0 -
Rule Jordan 1992 max - Apr Fri>=1 0:00 1:00 " DST"
Rule Jordan 1992 max - Oct Fri>=1 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Amman 2:23:44 - LMT 1931
2:00 Jordan EET%s
# Kazakhstan
# From Shanks (1991):
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Alma-Ata 5:07:48 - LMT 1924 May 2
5:00 - AASK 1957 Mar
6:00 Russia AAS%s
# Shanks has Alma-Ata switching to 5:00 in 1991,
# but usno1995 has Kazakhstan at 6:00. Ignore the 1991 switch for now.
# Kirgizstan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
5:00 - FSK 1957 Mar # Frunze
6:00 Russia FS%s 1991 Mar 31 2:00s
5:00 1:00 FSD 1991 Sep 29 2:00s
5:00 Russia BS%s
###############################################################################
# Korea
# From Guy Harris:
# According to someone at the Korean Times in San Francisco,
# Daylight Savings Time was not observed until 1987. He did not know
# at what time of day DST starts or ends.
# From Shanks (1991):
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule ROK 1960 only - May 15 0:00 1:00 D
Rule ROK 1960 only - Sep 13 0:00 0 S
Rule ROK 1987 1988 - May Sun<=14 0:00 1:00 D
Rule ROK 1987 1988 - Oct Sun<=14 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Seoul 8:27:52 - LMT 1890
8:30 - KST 1904 Dec
9:00 - KST 1928
8:30 - KST 1932
9:00 - KST 1954 Mar 21
8:00 ROK K%sT 1961 Aug 10
8:30 - KST 1968 Oct
9:00 ROK K%sT
Zone Asia/Pyongyang 8:23:00 - LMT 1890
8:30 - KST 1904 Dec
9:00 - KST 1928
8:30 - KST 1932
9:00 - KST 1954 Mar 21
8:00 - KST 1961 Aug 10
9:00 - KST
###############################################################################
# Kuwait
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - AST
# Laos
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9
7:06 - SMT 1911 Mar 11 0:01 # Saigon MT
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# Lebanon
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Lebanon 1880 only - Jan 1 0:00 0 -
Rule Lebanon 1920 only - Mar 28 0:00 1:00 " DST"
Rule Lebanon 1920 only - Oct 25 0:00 0 -
Rule Lebanon 1921 only - Apr 3 0:00 1:00 " DST"
Rule Lebanon 1921 only - Oct 3 0:00 0 -
Rule Lebanon 1922 only - Mar 26 0:00 1:00 " DST"
Rule Lebanon 1922 only - Oct 8 0:00 0 -
Rule Lebanon 1923 only - Apr 22 0:00 1:00 " DST"
Rule Lebanon 1923 only - Sep 16 0:00 0 -
Rule Lebanon 1957 1961 - May 1 0:00 1:00 " DST"
Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
Rule Lebanon 1972 only - Jun 22 0:00 1:00 " DST"
Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
Rule Lebanon 1973 1977 - May 1 0:00 1:00 " DST"
Rule Lebanon 1978 only - Apr 30 0:00 1:00 " DST"
Rule Lebanon 1978 only - Sep 30 0:00 0 -
Rule Lebanon 1984 1987 - May 1 0:00 1:00 " DST"
Rule Lebanon 1984 max - Oct 16 0:00 0 -
Rule Lebanon 1988 only - Jun 1 0:00 1:00 " DST"
Rule Lebanon 1989 only - May 10 0:00 1:00 " DST"
Rule Lebanon 1990 max - May 1 0:00 1:00 " DST"
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Beirut 2:22:00 - LMT 1880
2:00 Lebanon EET%s
# Malaysia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuala_Lumpur 6:46:48 - LMT 1880
6:55 - SMT 1905 Jun
7:00 - SGT 1933
7:20 - SGT 1942 Feb 15
9:00 - JST 1945 Sep 2
7:20 - SGT 1950
7:30 - SGT 1982 May
8:00 - SGT
# Maldives
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
4:54 - MMT 1960
5:00 - PKT
# Mongolia
# Let's comment out the western and eastern Mongolian time zones
# till we know what their principal towns are.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mongol 1978 only - Jan 1 0:00 0 S
Rule Mongol 1981 1984 - Apr 1 0:00 1:00 T
Rule Mongol 1981 1984 - Oct 1 0:00 0 S
Rule Mongol 1985 max - Mar lastSun 2:00 1:00 T
Rule Mongol 1985 max - Sep lastSun 3:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#Zone Asia/Dariv 6:14:32 - LMT 1905 Aug
# 6:00 - DST 1978
# 7:00 Mongol D%sT
Zone Asia/Ulan_Bator 7:07:32 - LMT 1905 Aug
7:00 - UST 1978
8:00 Mongol U%sT
#Zone Asia/Baruun-Urt 7:33:00 - LMT 1905 Aug
# 8:00 - BST 1978
# 9:00 Mongol B%sT
# Nepal
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Katmandu 5:41:16 - LMT 1920
5:30 - IST 1986
5:45 - NPT
# Oman
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:20 - LMT 1920
4:00 - GST
# Pakistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Karachi 4:28:12 - LMT 1907
5:30 - IST 1942 Sep
5:30 1:00 IST 1945 Oct 15
5:30 - IST 1951 Sep 30
5:00 - PKT
# Palestine
# These rules for Egypt are stolen from the `africa' file.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Egypt 1957 only - May 10 0:00 1:00 " DST"
Rule Egypt 1957 1958 - Oct 1 0:00 0 -
Rule Egypt 1958 only - May 1 0:00 1:00 " DST"
Rule Egypt 1959 1981 - May 1 1:00 1:00 " DST"
Rule Egypt 1959 1965 - Sep 30 3:00 0 -
Rule Egypt 1966 max - Oct 1 3:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
2:00 - EET 1957 May 10
2:00 Egypt EET%s 1967 Jun 30
2:00 Zion I%sT
# This will undoubtedly change soon.
# Paracel Is
# no information
# Philippines
# Howse writes (p 162) that until 1844 the Philippines kept American date.
# The rest of this data is from Shanks.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1899 only - May 11 0:00 0 S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:00 - LMT 1844
8:04:00 - LMT 1899 May 11
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
# Qatar
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah
4:00 - GST 1972 Jun
3:00 - AST
# Saudi Arabia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Riyadh 3:06:52 - LMT 1950
3:00 - AST
# Singapore
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Singapore 6:55:24 - LMT 1880
6:55 - SMT 1905 Jun
7:00 - SGT 1933
7:20 - SGT 1942 Feb 15
9:00 - JST 1945 Sep 2
7:20 - SGT 1950
7:30 - SGT 1982 May
8:00 - SGT
# Spratly Is
# no information
# Sri Lanka
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Colombo 5:19:24 - LMT 1880
5:20 - JMT 1906
5:30 - IST 1942 Jan 5
5:30 0:30 IHST 1942 Sep
5:30 1:00 IST 1945 Oct 16 2:00
5:30 - IST
# Syria
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Syria 1920 only - Jan 1 0:00 0 -
Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 " DST"
Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
Rule Syria 1962 only - Apr 29 2:00 1:00 " DST"
Rule Syria 1962 only - Oct 1 2:00 0 -
Rule Syria 1963 1965 - May 1 2:00 1:00 " DST"
Rule Syria 1963 only - Sep 30 2:00 0 -
Rule Syria 1964 only - Oct 1 2:00 0 -
Rule Syria 1965 only - Sep 30 2:00 0 -
Rule Syria 1966 only - Apr 24 2:00 1:00 " DST"
Rule Syria 1966 1976 - Oct 1 2:00 0 -
Rule Syria 1967 1978 - May 1 2:00 1:00 " DST"
Rule Syria 1977 1978 - Sep 1 2:00 0 -
Rule Syria 1983 1984 - Apr 9 2:00 1:00 " DST"
Rule Syria 1983 1984 - Oct 1 2:00 0 -
Rule Syria 1986 only - Feb 16 2:00 1:00 " DST"
Rule Syria 1986 only - Oct 9 2:00 0 -
Rule Syria 1987 only - Mar 1 2:00 1:00 " DST"
Rule Syria 1987 1988 - Oct 31 2:00 0 -
Rule Syria 1988 only - Mar 15 2:00 1:00 " DST"
Rule Syria 1989 only - Mar 31 2:00 1:00 " DST"
Rule Syria 1989 only - Oct 1 2:00 0 -
Rule Syria 1990 max - Apr 1 2:00 1:00 " DST"
Rule Syria 1990 max - Sep 30 2:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Damascus 2:25:12 - LMT 1920
2:00 Syria EET%s
# Tajikistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
5:00 - DSK 1957 Mar
6:00 Russia DS%s 1991
6:00 - DSK
# Shanks has Dushanbe at 5:00 (6:00 summer) after 1991 Sep 29 3:00,
# but usno1995 has it at 6:00. Go with usno1995.
# Thailand
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bangkok 6:42:04 - LMT 1880
6:42 - BMT 1920 Apr
7:00 - ICT
# Turkmenistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ashkhabad 3:53:32 - LMT 1924 May 2
4:00 - ASK 1957 Mar
5:00 Russia AS%s 1991
5:00 - ASK
# Shanks has Ashkhabad at 4:00 (5:00 summer) after 1991 Sep 20 3:00,
# but usno has it at 5:00. Go with usno1995.
# United Arab Emirates
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dubai 3:41:12 - LMT 1920
4:00 - GST
# Uzbekistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
5:00 - TSK 1957 Mar
6:00 Russia TS%s 1991 Mar 31 2:00s
5:00 1:00 TSD 1991 Sep 29 2:00s
5:00 - TSK
# Shanks has Tashkent using DST after 1991, but usno1995 says they don't.
# Go with usno1995.
# Vietnam
# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
# Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
# We'll stick with the traditional name for now.
# From Shanks (1991):
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Saigon 7:06:40 - LMT 1906 Jun 9
7:06 - SMT 1911 Mar 11 0:01 # Saigon MT
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# Yemen
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 3:00:48 - LMT 1950
3:00 - AST
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