Here are some proposed tz patches that I have been saving up. The diciest proposed change, to my mind, is the new directory America/Indiana. The alternative is a (probably growing) set of names like America/Marengo_IN. Here's a summary of the changes: * Add a new rule of thumb: don't bother with regions that exactly match an existing entry in all times since 1970. * USNO says Libya is 2:00 all year. Guess that it switched in 1991. * Sudan stopped observing DST after 1985. (I transcribed Shanks incorrectly.) * Change ex-Soviet-Union abbreviations to match cities better, e.g. use YSK for Yerevan. * Revise and/or invent data for ex-Soviet cities to match all known info. * Mention Myanmar as another name for Burma. * Shanks has no entries for China after 1991, so remove guesses. * Remove incorrect info for Asia/Tehran; Iran hasn't observed DST since 1980. * Use `2:00s' consistently for Australia and NZ instead of `2:00'/`3:00', since the relevant legislation (at least in NZ) specifies standard time. * Remove bogus Australia/Canberra entry. (I transcribed Shanks incorrectly.) * Add DST rules for Lord Howe (with guesses after 1991). * Fix several typos in NZ DST rules for the period 1927-1945. * Chatham obeys DST; change its abbreviation. * Shanks says Vanuatu changed DST rules in 1991; I missed this earlier. * Remove bogus DST rules for France in 1975. * Belgium switched to EC rules in 1977, not 1979. * US DST abbreviations in World War I are of the form xWT, not xDT. * Shanks says the 1933 Honolulu DST experiment lasted 3 weeks, not 1 day. * Rename America/Fort_Wayne to America/Indianapolis, since it's more populous and better known. Similarly, rename America/Atka to America/Adak. * Create a new directory just for Indiana, since its entries are becoming so obscure. Rename America/Knox_IN to America/Indiana/Knox. * America/Indianapolis is now the only Indiana entry well-known enough to keep in the top level. * Change the abbreviation for Newfoundland double-daylight time from `NDT' to `NDDT'. * Change the abbreviation for wartime DST in Puerto Rico from ADT to AWT. Also fix the longitude of San Juan. * Add the following cities, since these cities' time zone histories since 1970 do not match any current entries: America/Boise America/Indiana/Marengo America/Indiana/Vevay America/Juneau America/Louisville America/Menominee America/Nome America/Yakutat Asia/Chungking Asia/Harbin Asia/Kashgar Asia/Urumqi * Add full historical information for the following entries: America/Adak America/Anchorage America/Chicago America/Denver America/Detroit America/Indiana/Knox America/Indianapolis America/Los_Angeles America/New_York America/Phoenix Pacific/Honolulu * Add Pacific/Johnston, for a country whose zone we didn't know before. * Remove America/Shiprock, since it hasn't differed from America/Denver since 1970. * Add backwards compatibility entries for the above name changes. =================================================================== RCS file: RCS/africa,v retrieving revision 1995.12 retrieving revision 1995.12.1.1 diff -c -r1995.12 -r1995.12.1.1 *** africa 1995/12/19 23:10:12 1995.12 --- africa 1995/12/20 02:21:36 1995.12.1.1 *************** *** 33,38 **** --- 33,42 ---- # E.g. prefer `Brunei' to `Bandar_Seri_Begawan'. # Include at least one location per time zone rule set per country. # One such location is enough. + # If all the clocks in a country's region have agreed since 1970, + # don't bother to include more than one location + # even if subregions' clocks disagreed before 1970. + # Otherwise these tables would become annoyingly large. # If a name is ambiguous, use a less ambiguous alternative; # e.g. many cities are named San Jose and Georgetown, so # prefer `Costa_Rica' to `San_Jose' and `Guyana' to `Georgetown'. *************** *** 359,374 **** Rule Libya 1987 1989 - Apr 1 0:00 1:00 " DST" Rule Libya 1987 1990 - Oct 1 0:00 0 - Rule Libya 1990 only - May 4 0:00 1:00 " DST" - # From Paul Eggert <eggert@twinsun.com> (November 18, 1993): - # Here's a guess for years starting with 1991. - Rule Libya 1991 max - Apr 1 0:00 1:00 " DST" - Rule Libya 1991 max - Oct 1 0:00 0 - - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Tripoli 0:52:44 - LMT 1920 1:00 Libya MET%s 1959 2:00 - EET 1982 ! 1:00 Libya MET%s # Madagascar # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 363,377 ---- Rule Libya 1987 1989 - Apr 1 0:00 1:00 " DST" Rule Libya 1987 1990 - Oct 1 0:00 0 - Rule Libya 1990 only - May 4 0:00 1:00 " DST" # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Tripoli 0:52:44 - LMT 1920 1:00 Libya MET%s 1959 2:00 - EET 1982 ! # From Paul Eggert <eggert@twinsun.com> (1995-12-19): ! # usno1995 (from OAG) says Libya uses 2:00 all year, as they did before 1982. ! # We don't know when they switched back. We'll guess 1991. ! 1:00 Libya MET%s 1991 ! 2:00 - EET # Madagascar # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 435,441 **** 1:00 - MET 1986 0:00 - WET # The following are controlled by Spain, and are like Europe/Madrid: ! # Alboran, Alhucemas Is, Ceuta, Chafarinas Is, Mellila. # Mozambique # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 438,444 ---- 1:00 - MET 1986 0:00 - WET # The following are controlled by Spain, and are like Europe/Madrid: ! # Alboran, Alhucemas Is, Ceuta, Chafarinas Is, Melilla. # Mozambique # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 477,486 **** Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown -0:06 - ?MT 1951 # a typo in Shanks? 0:00 - GMT ! # Whitman says Tristan da Cunha is on GMT, like Atlantic/St_Helena. ! # ! # Ascension, Gough, Inaccessible, Nightingale ! # no information; probably like Atlantic/St_Helena # Sao Tome and Principe # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 480,489 ---- Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown -0:06 - ?MT 1951 # a typo in Shanks? 0:00 - GMT ! # The other parts of the St Helena territory are similar: ! # Tristan da Cunha: on GMT, says Whitman ! # Ascension: on GMT, says usno1995 ! # Gough, Inaccessible, Nightingale: no information, but probably GMT # Sao Tome and Principe # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 540,553 **** # Sudan no longer observes any form of daylight time change. # I verified this today by telephone with the Sudan Mission to the # United Nations: 212-573-6033 - # From Arthur David Olson <arthur_david_olson@nih.gov> (December 19, 1995): - # I will (dangerously) assume the change went into effect in 1995. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Sudan 1931 only - Feb 8 0:00 0 - Rule Sudan 1970 only - May 1 0:00 1:00 " DST" ! Rule Sudan 1970 1994 - Oct 15 0:00 0 - Rule Sudan 1971 only - Apr 30 0:00 1:00 " DST" ! Rule Sudan 1972 1994 - Apr lastSun 0:00 1:00 " DST" # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Khartoum 2:10:08 - LMT 1931 2:00 Sudan EET%s --- 543,554 ---- # Sudan no longer observes any form of daylight time change. # I verified this today by telephone with the Sudan Mission to the # United Nations: 212-573-6033 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Sudan 1931 only - Feb 8 0:00 0 - Rule Sudan 1970 only - May 1 0:00 1:00 " DST" ! Rule Sudan 1970 1985 - Oct 15 0:00 0 - Rule Sudan 1971 only - Apr 30 0:00 1:00 " DST" ! Rule Sudan 1972 1985 - Apr lastSun 0:00 1:00 " DST" # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Khartoum 2:10:08 - LMT 1931 2:00 Sudan EET%s =================================================================== RCS file: RCS/asia,v retrieving revision 1995.10 retrieving revision 1995.10.1.1 diff -c -r1995.10 -r1995.10.1.1 *** asia 1995/10/28 16:08:54 1995.10 --- asia 1995/12/20 01:55:08 1995.10.1.1 *************** *** 4,10 **** # 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> (August 18, 1994): # # A good source for time zone historical data outside the U.S. is # Thomas G. Shanks, The International Atlas (3rd edition), --- 4,10 ---- # 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), *************** *** 28,44 **** # 2:00 EET EET DST Eastern European Time # 2:00 IST IDT Israel # 3:00 AST ADT Arabia* ! # 3:00 MSK MSD Moscow # 3:30 IST IDT Iran ! # 4:00 BSK BSD Baku* # 4:00 GST GDT Gulf* # 4:30 AFT Afghanistan* ! # 5:00 ASK ASD Ashkhabad* # 5:00 PKT Pakistan* # 5:30 IST IST India # 5:45 NPT Nepal* # 6:00 BGT Bengal, Bangladesh* ! # 6:00 TSK TSD Tashkent* # 6:30 BMT Burma* # 7:00 ICT Indochina* # 7:00 JVT Java* --- 28,48 ---- # 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* *************** *** 65,78 **** ############################################################################### - # From Paul Eggert <eggert@twinsun.com> (May 28, 1994): - # We don't know what happened to the clocks in the Caucausus and the ex-Soviet - # Central Asia after 1990. Until we get more info, stick with the pre-1991 rules. # 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 3:00 0 K ! Rule Russia 1985 max - Mar lastSun 2:00 1:00 D # Afghanistan # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 69,79 ---- ############################################################################### # 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] *************** *** 83,96 **** # Armenia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 ! 3:00 - MSK 1957 Mar ! 4:00 Russia BS%s # Azerbaijan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:19:24 - LMT 1924 May 2 ! 3:00 - MSK 1957 Mar ! 4:00 Russia BS%s # Bahrain # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 84,103 ---- # 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] *************** *** 124,130 **** 7:30 - BNT 1933 8:00 - BNT ! # Burma # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Rangoon 6:24:40 - LMT 1880 6:25 - RMT 1920 --- 131,137 ---- 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 *************** *** 159,177 **** # 1986 May 4 - Sept 14 # 1987 mid-April - ?? - # From Paul Eggert <eggert@twinsun.com> (November 18, 1993): - # According to Shanks, China started using DST in 1986, - # but it's still all one big happy time zone. - # 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> (November 18, 1993): # 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, ! # and that they instituted DST on 1986 May 4; this contradicts Devine's # note about Time magazine, though apparently _something_ happened in 1986. # From Shanks (1991): # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S --- 166,181 ---- # 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 *************** *** 181,192 **** 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 max - Sep Sun>=11 0:00 0 S ! Rule PRC 1987 max - Apr Sun>=10 0:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Shanghai 8:05:52 - LMT 1928 8:00 Shang C%sT 1949 8:00 PRC C%sT ############################################################################### --- 185,212 ---- 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 ############################################################################### *************** *** 211,218 **** ############################################################################### # Hong Kong - # Presumably Hong Kong will have DST again when it merges with China, - # but it's too early to predict the details. # 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 --- 231,236 ---- *************** *** 235,242 **** 8:00 HK HK%sT # Macao - # Presumably Macao will have DST again when it merges with China, - # but it's too early to predict the details. # 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 --- 253,258 ---- *************** *** 281,292 **** # 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! ! # Alas, we have no details. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tbilisi 2:59:16 - LMT 1880 2:59 - LST 1924 May 2 ! 3:00 - MSK 1957 Mar ! 4:00 Russia BS%s # India # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 297,316 ---- # 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] *************** *** 323,348 **** 9:00 - MLT # Iran - - # Shanks has no record of DST after 1980. - - # From Bob Devine (January 28, 1988): - # Iran: Last Sunday in March to third (?) Sunday in - # September. Since the revolution, the official calendar is Monarchic - # calendar; I have no idea what the correspondence between dates are. - - # From U. S. Naval Observatory (January 19, 1989): - # IRAN 3.5H AHEAD OF UTC - - # From Shanks (1991), with corrections from Devine: # 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 - Rule Iran 1988 max - Mar lastSun 2:00 1:00 D - Rule Iran 1988 max - Sep Sun>=15 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tehran 3:25:44 - LMT 1916 3:26 - TMT 1946 --- 347,358 ---- *************** *** 526,537 **** # 9:00 Japan J%sT # and uncomment the two `Rule' lines commented out above. ! # From Paul Eggert <eggert@twinsun.com> (November 18, 1993): # Shanks says that the far southern Ryukyu Is (Nansei-Shoto) are 8:00, ! # but we don't have a good location name for them; ! # we don't even know the name of the principal town. # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! #Zone Asia/South_Ryukyu 8:14:44 - LMT 1896 # Amitori # 8:00 - CST # There is no information for Marcus. # Other Japanese possessions are probably like Asia/Tokyo. --- 536,546 ---- # 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. *************** *** 567,580 **** # From Shanks (1991): # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Alma-Ata 5:07:48 - LMT 1924 May 2 ! 5:00 - TSK 1957 Mar ! 6:00 Russia TS%s # Kirgizstan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 ! 5:00 - TSK 1957 Mar ! 6:00 Russia TS%s ############################################################################### --- 576,593 ---- # 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 ############################################################################### *************** *** 811,818 **** # Tajikistan # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 ! 5:00 - TSK 1957 Mar ! 6:00 Russia TS%s # Thailand # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 824,834 ---- # 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] *************** *** 824,830 **** # 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 # United Arab Emirates # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 840,849 ---- # 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] *************** *** 835,841 **** # 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 # Vietnam # From Paul Eggert <eggert@twinsun.com> (November 18, 1993): --- 854,864 ---- # 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): =================================================================== RCS file: RCS/australasia,v retrieving revision 1995.10 retrieving revision 1995.10.1.1 diff -c -r1995.10 -r1995.10.1.1 *** australasia 1995/10/28 16:08:58 1995.10 --- australasia 1995/12/20 01:55:08 1995.10.1.1 *************** *** 28,144 **** # Western Australia Zone Australia/Perth 7:43:24 - LMT 1895 Dec 8:00 - WST 1917 Jan 1 0:01 ! 8:00 Aus WST 1974 Oct lastSun 2:00 ! 8:00 1:00 WST 1975 Mar Sun>=1 3:00 ! 8:00 - WST 1983 Oct lastSun 2:00 ! 8:00 1:00 WST 1984 Mar Sun>=1 3:00 ! 8:00 - WST 1991 Nov 17 2:00 ! 8:00 1:00 WST 1992 Mar Sun>=1 3:00 8:00 - WST # Queensland Zone Australia/Brisbane 10:12:08 - LMT 1895 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1971 Oct lastSun 2:00 ! 10:00 1:00 EST 1972 Feb lastSun 3:00 ! 10:00 - EST 1989 Oct lastSun 2:00 ! 10:00 1:00 EST 1990 Mar Sun>=1 3:00 ! 10:00 - EST 1990 Oct lastSun 2:00 ! 10:00 1:00 EST 1991 Mar Sun>=1 3:00 ! 10:00 - EST 1991 Oct lastSun 2:00 ! 10:00 1:00 EST 1992 Mar Sun>=1 3:00 10:00 - EST # South Australia # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AS 1971 1985 - Oct lastSun 2:00 1:00 - ! Rule AS 1986 only - Oct 19 2:00 1:00 - ! Rule AS 1987 max - Oct lastSun 2:00 1:00 - ! Rule AS 1972 only - Feb 27 3:00 0 - ! Rule AS 1973 1985 - Mar Sun>=1 3:00 0 - ! Rule AS 1986 1989 - Mar Sun>=15 3:00 0 - ! Rule AS 1990 1994 even Mar Sun>=18 3:00 0 - ! Rule AS 1990 1994 odd Mar Sun>=1 3:00 0 - ! Rule AS 1995 max - Mar lastSun 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb 9:00 - CST 1899 May 9:30 - CST 1917 Jan 1 0:01 ! 9:30 Aus CST 1971 Oct lastSun 2:00 9:30 AS CST # Tasmania # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AT 1967 only - Oct 1 2:00 1:00 - ! Rule AT 1968 only - Mar 31 3:00 0 - ! Rule AT 1968 1985 - Oct lastSun 2:00 1:00 - ! Rule AT 1969 1971 - Mar Sun>=8 3:00 0 - ! Rule AT 1972 only - Feb 27 3:00 0 - ! Rule AT 1973 1981 - Mar Sun>=1 3:00 0 - ! Rule AT 1982 1983 - Mar lastSun 3:00 0 - ! Rule AT 1984 1986 - Mar Sun>=1 3:00 0 - ! Rule AT 1986 only - Oct 19 2:00 1:00 - ! Rule AT 1987 1990 - Mar Sun>=15 3:00 0 - ! Rule AT 1987 1990 - Oct lastSun 2:00 1:00 - ! Rule AT 1991 max - Oct Sun>=1 2:00 1:00 - ! Rule AT 1991 max - Mar lastSun 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Hobart 9:49:16 - LMT 1895 Sep 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1967 Oct 1 2:00 10:00 AT EST # Victoria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AV 1971 1985 - Oct lastSun 2:00 1:00 - ! Rule AV 1972 only - Feb 27 3:00 0 - ! Rule AV 1973 1985 - Mar Sun>=1 3:00 0 - ! Rule AV 1986 1990 - Mar Sun>=15 3:00 0 - ! Rule AV 1986 only - Oct 19 2:00 1:00 - ! Rule AV 1987 max - Oct lastSun 2:00 1:00 - ! Rule AV 1991 1994 - Mar Sun>=1 3:00 0 - ! Rule AV 1995 max - Mar lastSun 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Melbourne 9:39:52 - LMT 1895 Feb 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1971 Oct 31 2:00 10:00 AV EST # New South Wales # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AN 1971 1985 - Oct lastSun 2:00 1:00 - ! Rule AN 1972 only - Feb 27 3:00 0 - ! Rule AN 1973 1985 - Mar Sun>=1 3:00 0 - ! Rule AN 1986 1989 - Mar Sun>=15 3:00 0 - ! Rule AN 1986 only - Oct 19 2:00 1:00 - ! Rule AN 1987 max - Oct lastSun 2:00 1:00 - ! Rule AN 1990 1995 - Mar Sun>=1 3:00 0 - ! Rule AN 1996 max - Mar lastSun 3:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Sydney 10:04:52 - LMT 1895 Feb 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1971 Oct 31 2:00 10:00 AN EST Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb 10:00 - EST 1896 Aug 23 9:00 - CST 1899 May 9:30 - CST 1917 Jan 1 0:01 ! 9:30 Aus CST 1971 Oct 31 2:00 9:30 AN CST ! # Australian Capital Territory ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone Australia/Canberra 9:56:32 - LMT 1895 Feb ! 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1971 Oct 31 2:00 ! 10:00 AN EST 1981 Oct 25 2:00 ! 10:00 1:00 EST 1982 Apr 4 3:00 ! 10:00 AN EST # Australian miscellany # Zone NAME GMTOFF RULES FORMAT [UNTIL] - Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb - 10:00 - EST 1981 Mar - 10:30 AN LHST Zone Indian/Christmas 7:02:52 - LMT 1895 Feb 7:00 - JVT # --- 28,148 ---- # Western Australia Zone Australia/Perth 7:43:24 - LMT 1895 Dec 8:00 - WST 1917 Jan 1 0:01 ! 8:00 Aus WST 1974 Oct lastSun 2:00s ! 8:00 1:00 WST 1975 Mar Sun>=1 2:00s ! 8:00 - WST 1983 Oct lastSun 2:00s ! 8:00 1:00 WST 1984 Mar Sun>=1 2:00s ! 8:00 - WST 1991 Nov 17 2:00s ! 8:00 1:00 WST 1992 Mar Sun>=1 2:00s 8:00 - WST # Queensland Zone Australia/Brisbane 10:12:08 - LMT 1895 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1971 Oct lastSun 2:00s ! 10:00 1:00 EST 1972 Feb lastSun 2:00s ! 10:00 - EST 1989 Oct lastSun 2:00s ! 10:00 1:00 EST 1990 Mar Sun>=1 2:00s ! 10:00 - EST 1990 Oct lastSun 2:00s ! 10:00 1:00 EST 1991 Mar Sun>=1 2:00s ! 10:00 - EST 1991 Oct lastSun 2:00s ! 10:00 1:00 EST 1992 Mar Sun>=1 2:00s 10:00 - EST # South Australia # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AS 1971 1985 - Oct lastSun 2:00s 1:00 - ! Rule AS 1986 only - Oct 19 2:00s 1:00 - ! Rule AS 1987 max - Oct lastSun 2:00s 1:00 - ! Rule AS 1972 only - Feb 27 2:00s 0 - ! Rule AS 1973 1985 - Mar Sun>=1 2:00s 0 - ! Rule AS 1986 1989 - Mar Sun>=15 2:00s 0 - ! Rule AS 1990 1994 even Mar Sun>=18 2:00s 0 - ! Rule AS 1990 1994 odd Mar Sun>=1 2:00s 0 - ! Rule AS 1995 max - Mar lastSun 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb 9:00 - CST 1899 May 9:30 - CST 1917 Jan 1 0:01 ! 9:30 Aus CST 1971 Oct lastSun 2:00s 9:30 AS CST # Tasmania # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AT 1967 only - Oct 1 2:00s 1:00 - ! Rule AT 1968 only - Mar 31 2:00s 0 - ! Rule AT 1968 1985 - Oct lastSun 2:00s 1:00 - ! Rule AT 1969 1971 - Mar Sun>=8 2:00s 0 - ! Rule AT 1972 only - Feb 27 2:00s 0 - ! Rule AT 1973 1981 - Mar Sun>=1 2:00s 0 - ! Rule AT 1982 1983 - Mar lastSun 2:00s 0 - ! Rule AT 1984 1986 - Mar Sun>=1 2:00s 0 - ! Rule AT 1986 only - Oct 19 2:00s 1:00 - ! Rule AT 1987 1990 - Mar Sun>=15 2:00s 0 - ! Rule AT 1987 1990 - Oct lastSun 2:00s 1:00 - ! Rule AT 1991 max - Oct Sun>=1 2:00s 1:00 - ! Rule AT 1991 max - Mar lastSun 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Hobart 9:49:16 - LMT 1895 Sep 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1967 Oct 1 2:00s 10:00 AT EST # Victoria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AV 1971 1985 - Oct lastSun 2:00s 1:00 - ! Rule AV 1972 only - Feb 27 2:00s 0 - ! Rule AV 1973 1985 - Mar Sun>=1 2:00s 0 - ! Rule AV 1986 1990 - Mar Sun>=15 2:00s 0 - ! Rule AV 1986 only - Oct 19 2:00s 1:00 - ! Rule AV 1987 max - Oct lastSun 2:00s 1:00 - ! Rule AV 1991 1994 - Mar Sun>=1 2:00s 0 - ! Rule AV 1995 max - Mar lastSun 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Melbourne 9:39:52 - LMT 1895 Feb 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1971 Oct 31 2:00s 10:00 AV EST # New South Wales # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule AN 1971 1985 - Oct lastSun 2:00s 1:00 - ! Rule AN 1972 only - Feb 27 2:00s 0 - ! Rule AN 1973 1981 - Mar Sun>=1 2:00s 0 - ! Rule AN 1982 only - Apr Sun>=1 2:00s 0 - ! Rule AN 1983 1985 - Mar Sun>=1 2:00s 0 - ! Rule AN 1986 1989 - Mar Sun>=15 2:00s 0 - ! Rule AN 1986 only - Oct 19 2:00s 1:00 - ! Rule AN 1987 max - Oct lastSun 2:00s 1:00 - ! Rule AN 1990 1995 - Mar Sun>=1 2:00s 0 - ! Rule AN 1996 max - Mar lastSun 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Australia/Sydney 10:04:52 - LMT 1895 Feb 10:00 - EST 1917 Jan 1 0:01 ! 10:00 Aus EST 1971 Oct 31 2:00s 10:00 AN EST Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb 10:00 - EST 1896 Aug 23 9:00 - CST 1899 May 9:30 - CST 1917 Jan 1 0:01 ! 9:30 Aus CST 1971 Oct 31 2:00s 9:30 AN CST ! # Lord Howe Island ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule LH 1981 1984 - Oct lastSun 2:00s 1:00 - ! Rule LH 1982 1985 - Mar Sun>=1 2:00s 0 - ! Rule LH 1985 only - Oct lastSun 2:00s 0:30 - ! Rule LH 1986 1989 - Mar Sun>=15 2:00s 0 - ! Rule LH 1986 only - Oct 19 2:00s 0:30 - ! Rule LH 1987 max - Oct lastSun 2:00s 0:30 - ! Rule LH 1990 1995 - Mar Sun>=1 2:00s 0 - ! Rule LH 1996 max - Mar lastSun 2:00s 0 - ! Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb ! 10:00 - EST 1981 Mar ! 10:30 LH LHST # Australian miscellany # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Christmas 7:02:52 - LMT 1895 Feb 7:00 - JVT # *************** *** 197,203 **** # no information; was probably like Pacific/Kiritimati # Johnston ! # no information; probably like Pacific/Honolulu # Kingman # uninhabited --- 201,208 ---- # no information; was probably like Pacific/Kiritimati # Johnston ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone Pacific/Johnston -10:00 - HST # Kingman # uninhabited *************** *** 269,283 **** Rule NZ 1868 only - Jan 1 0:00 0 S # Shanks gives 1927 Nov 6 - 1928 Mar 4, 1928 Oct 14 - 1929 Mar 17, # 1929 Oct 13 - 1930 Mar 16; go with Whitman. ! Rule NZ 1927 only - Nov 26 2:00 1:00 D Rule NZ 1928 1929 - Mar Sun>=1 2:00 0 S ! Rule NZ 1928 only - Nov 4 2:00 1:00 D ! Rule NZ 1929 only - Oct 30 2:00 1:00 D Rule NZ 1930 1933 - Mar Sun>=15 2:00 0 S ! Rule NZ 1930 1933 - Oct Sun>=8 2:00 1:00 D ! # Shanks says DST stopped 1940 Sep lastSun; go with Whitman for war years. ! Rule NZ 1934 1944 - Apr lastSun 2:00 0 S ! Rule NZ 1934 1944 - Sep lastSun 2:00 1:00 D Rule NZ 1974 only - Nov 3 2:00s 1:00 D Rule NZ 1975 1988 - Oct lastSun 2:00s 1:00 D Rule NZ 1989 only - Oct 8 2:00s 1:00 D --- 274,289 ---- Rule NZ 1868 only - Jan 1 0:00 0 S # Shanks gives 1927 Nov 6 - 1928 Mar 4, 1928 Oct 14 - 1929 Mar 17, # 1929 Oct 13 - 1930 Mar 16; go with Whitman. ! Rule NZ 1927 only - Nov 26 2:00 0:30 HD Rule NZ 1928 1929 - Mar Sun>=1 2:00 0 S ! Rule NZ 1928 only - Nov 4 2:00 0:30 HD ! Rule NZ 1929 only - Oct 30 2:00 0:30 HD Rule NZ 1930 1933 - Mar Sun>=15 2:00 0 S ! Rule NZ 1930 1933 - Oct Sun>=8 2:00 0:30 HD ! # Whitman says DST went on and off during war years, and the base GMT offset ! # didn't change until 1945 Apr 30; go with Shanks. ! Rule NZ 1934 1940 - Apr lastSun 2:00 0 S ! Rule NZ 1934 1939 - Sep lastSun 2:00 0:30 HD Rule NZ 1974 only - Nov 3 2:00s 1:00 D Rule NZ 1975 1988 - Oct lastSun 2:00s 1:00 D Rule NZ 1989 only - Oct 8 2:00s 1:00 D *************** *** 287,297 **** Rule NZ 1990 max - Mar Sun>=15 2:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Auckland 11:39:04 - LMT 1868 ! # Shanks gives 1940 Sep 29 2:00; ! # go with Whitman. ! 11:30 NZ NZ%sT 1945 Apr 29 2:00 12:00 NZ NZ%sT ! Zone Pacific/Chatham 12:45 - NZ-CHAT # Antipodes Is, Kermadec Is --- 293,301 ---- Rule NZ 1990 max - Mar Sun>=15 2:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Auckland 11:39:04 - LMT 1868 ! 11:30 NZ NZ%sT 1940 Sep 29 2:00 12:00 NZ NZ%sT ! Zone Pacific/Chatham 12:45 NZ CH%sT # Antipodes Is, Kermadec Is *************** *** 372,380 **** # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Vanuatu 1912 only - Jan 13 0:00 0 S Rule Vanuatu 1983 only - Sep 25 0:00 1:00 D ! Rule Vanuatu 1984 max - Mar Sun>=23 0:00 0 S Rule Vanuatu 1984 only - Oct 23 0:00 1:00 D ! Rule Vanuatu 1985 max - Sep Sun>=23 0:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila 11:00 - NCST --- 376,386 ---- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Vanuatu 1912 only - Jan 13 0:00 0 S Rule Vanuatu 1983 only - Sep 25 0:00 1:00 D ! Rule Vanuatu 1984 1991 - Mar Sun>=23 0:00 0 S Rule Vanuatu 1984 only - Oct 23 0:00 1:00 D ! Rule Vanuatu 1985 1990 - Sep Sun>=23 0:00 1:00 D ! Rule Vanuatu 1991 max - Sep lastSun 0:00 1:00 D ! Rule Vanuatu 1992 max - Mar lastSun 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila 11:00 - NCST *************** *** 428,439 **** # 11:00 NCST NCDT New Caledonia* # 11:30 NRFT Norfolk* # 12:00 NZST NZDT New Zealand ! # 12:45 NZ-CHAT Chatham # 13:00 TGT Tongatapu* # -12:00 KJT Kwajalein (no longer used)* # -11:00 SST Samoa # -10:40 LIT Line Is (no longer used)* # -10:00 THT Tahiti* # - 9:30 MQT Marquesas* # - 9:00 GBT Gambier* # - 8:30 PIT Pitcairn* --- 434,446 ---- # 11:00 NCST NCDT New Caledonia* # 11:30 NRFT Norfolk* # 12:00 NZST NZDT New Zealand ! # 12:45 CHST CHDT Chatham* # 13:00 TGT Tongatapu* # -12:00 KJT Kwajalein (no longer used)* # -11:00 SST Samoa # -10:40 LIT Line Is (no longer used)* # -10:00 THT Tahiti* + # -10:00 HST Hawaii # - 9:30 MQT Marquesas* # - 9:00 GBT Gambier* # - 8:30 PIT Pitcairn* *************** *** 471,486 **** # WST for any place operating at a GMTOFF of 8:00 # EST for any place operating at a GMTOFF of 10:00 ! # From Paul Eggert (November 8, 1994): # Shanks reports 2:00 for all autumn changes in Australia and New Zealand. # Mark Prior <mrp@itd.adelaide.edu.au> writes that his newspaper # reports that NSW's fall 1995 change will occur at 2:00, # but Robert Elz says it's been 3:00 in Victoria since 1970 # and perhaps the newspaper's `2:00' is referring to standard time. ! # And Robert Uzgalis <buz@cs.aukuni.ac.nz> says that the New Zealand Daylight ! # Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard ! # time on both the first Sunday in October and the third Sunday in March. ! # For now we'll continue to assume 3:00 for changes since 1970. # Northern Territory --- 478,490 ---- # WST for any place operating at a GMTOFF of 8:00 # EST for any place operating at a GMTOFF of 10:00 ! # From Paul Eggert (1995-12-19): # Shanks reports 2:00 for all autumn changes in Australia and New Zealand. # Mark Prior <mrp@itd.adelaide.edu.au> writes that his newspaper # reports that NSW's fall 1995 change will occur at 2:00, # but Robert Elz says it's been 3:00 in Victoria since 1970 # and perhaps the newspaper's `2:00' is referring to standard time. ! # For now we'll continue to assume 2:00s for changes since 1960. # Northern Territory *************** *** 768,773 **** --- 772,783 ---- # Lord Howe Island is located off the New South Wales coast, and is half an # hour ahead of NSW time. + # From Paul Eggert (1995-12-19): + # For Lord Howe we use Shanks through its time of publication (1991). + # Lord Howe is part of NSW, so we'll guess it has used the same transition + # times as NSW since 1991, even though Shanks writes that Lord Howe went + # with Victoria when NSW and Victoria disagreed in 1982. + ############################################################################### # New Zealand, from Elz' asia 1.1 *************** *** 797,802 **** --- 807,822 ---- # The chosen rules use the Davies October 8 values for the start of DST in 1989 # rather than the October 1 value. + # From Paul Eggert (1995-12-19); + # Shanks reports 2:00 for all autumn changes in Australia and New Zealand. + # Robert Uzgalis <buz@cs.aukuni.ac.nz> writes that the New Zealand Daylight + # Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard + # time on both the first Sunday in October and the third Sunday in March. + # As with Australia, we'll assume the tradition is 2:00s, not 2:00. + # + # Shanks gives no data for Chatham, but usno1995 says it's +12:45/+13:45. + # Guess NZ switchover rules for now. + ############################################################################### # Fiji *************** *** 804,809 **** --- 824,833 ---- # Howse writes (p 162) that in 1879 the British governor of Fiji # enacted an ordinance standardizing the islands on +12:00. # Perhaps it didn't take. We go with Shanks's more precise date in 1915. + + # Johnston + + # Johnston data is from usno1995. # Kwajalein =================================================================== RCS file: RCS/backward,v retrieving revision 1995.10 retrieving revision 1995.10.1.1 diff -c -r1995.10 -r1995.10.1.1 *** backward 1995/10/28 16:09:10 1995.10 --- backward 1995/12/20 01:55:08 1995.10.1.1 *************** *** 3,10 **** # This file provides links between current names for time zones # and their old names. Many names changed in late 1993. Link America/St_Thomas America/Virgin ! Link Australia/Canberra Australia/ACT Link Australia/Lord_Howe Australia/LHI Link Australia/Sydney Australia/NSW Link Australia/Darwin Australia/North --- 3,15 ---- # This file provides links between current names for time zones # and their old names. Many names changed in late 1993. + Link America/Adak America/Atka + Link America/Indianapolis America/Fort_Wayne + Link America/Indiana/Knox America/Knox_IN + Link America/Denver America/Shiprock Link America/St_Thomas America/Virgin ! Link Australia/Sydney Australia/ACT ! Link Australia/Sydney Australia/Canberra Link Australia/Lord_Howe Australia/LHI Link Australia/Sydney Australia/NSW Link Australia/Darwin Australia/North *************** *** 49,55 **** Link America/Tijuana Mexico/BajaNorte Link America/Mazatlan Mexico/BajaSur Link America/Mexico_City Mexico/General ! Link America/Shiprock Navajo Link Pacific/Auckland NZ Link Pacific/Chatham NZ-CHAT Link Pacific/Pago_Pago Pacific/Samoa --- 54,60 ---- Link America/Tijuana Mexico/BajaNorte Link America/Mazatlan Mexico/BajaSur Link America/Mexico_City Mexico/General ! Link America/Denver Navajo Link Pacific/Auckland NZ Link Pacific/Chatham NZ-CHAT Link Pacific/Pago_Pago Pacific/Samoa *************** *** 62,74 **** Link Europe/Istanbul Turkey Link Etc/UCT UCT Link America/Anchorage US/Alaska ! Link America/Atka US/Aleutian Link America/Phoenix US/Arizona Link America/Chicago US/Central ! Link America/Fort_Wayne US/East-Indiana Link America/New_York US/Eastern Link Pacific/Honolulu US/Hawaii ! Link America/Knox_IN US/Indiana-Starke Link America/Detroit US/Michigan Link America/Denver US/Mountain Link America/Los_Angeles US/Pacific --- 67,79 ---- Link Europe/Istanbul Turkey Link Etc/UCT UCT Link America/Anchorage US/Alaska ! Link America/Adak US/Aleutian Link America/Phoenix US/Arizona Link America/Chicago US/Central ! Link America/Indianapolis US/East-Indiana Link America/New_York US/Eastern Link Pacific/Honolulu US/Hawaii ! Link America/Indiana/Knox US/Indiana-Starke Link America/Detroit US/Michigan Link America/Denver US/Mountain Link America/Los_Angeles US/Pacific =================================================================== RCS file: RCS/europe,v retrieving revision 1995.11 retrieving revision 1995.11.1.1 diff -c -r1995.11 -r1995.11.1.1 *** europe 1995/10/30 23:16:48 1995.11 --- europe 1995/12/20 01:55:08 1995.11.1.1 *************** *** 4,10 **** # 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> (November 18, 1993): # 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). --- 4,10 ---- # 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). *************** *** 32,48 **** # 2:00 EET+DST Eastern Europe # 3:00 MSK MSD Moscow # 3:00 TUR+DST Turkey (no longer used)* ! # 4:00 KSK KSD Kuybyshev* ! # 5:00 ESK ESD Yekaterinburg* ! # 6:00 OSK OSD Omsk* ! # 6:00 NSK NSD Novosibirsk (was 7:00 until 1994) ! # 7:00 TSK TSD Tomsk* ! # 8:00 ISK ISD Irkutsk* ! # 9:00 YSK YSD Yakutsk* ! # 10:00 VSK VSD Vladivostok* ! # 11:00 GSK GSD Magadan* ! # 12:00 PSK PSD Petropavlovsk-Kamchatski* ! # 13:00 ASK ASD Anadyr* # # See the `africa' file for Zone naming conventions. # --- 32,48 ---- # 2:00 EET+DST Eastern Europe # 3:00 MSK MSD Moscow # 3:00 TUR+DST Turkey (no longer used)* ! # 4:00 KSK KSD Kuybyshev (was 3:00)* ! # 5:00 ESK ESD Yekaterinburg (was 4:00) (was SSK, SSD)* ! # 6:00 OSK OSD Omsk (was 5:00)* ! # 6:00 NSK NSD Novosibirsk (was 7:00) ! # 7:00 TSK TSD Tomsk (was 6:00)* ! # 8:00 ISK ISD Irkutsk (was 7:00)* ! # 9:00 YSK YSD Yakutsk (was 8:00)* ! # 10:00 VSK VSD Vladivostok (was 9:00)* ! # 11:00 MSK MSD Magadan (was 10:00)* ! # 12:00 PSK PSD Petropavlovsk-Kamchatski (was 11:00)* ! # 13:00 ASK ASD Anadyr (was 12:00)* # # See the `africa' file for Zone naming conventions. # *************** *** 54,60 **** # LST is Local Star Time (``mestnoe zvezdnoe vremya''). # From Peter Ilieve <peter@memex.co.uk> (December 4, 1994), ! # The original six [EU members]: Belguim, France, (West) Germany, Italy, # Luxembourg, the Netherlands. # Plus, from 1 Jan 73: Denmark, Ireland, United Kingdom. # Plus, from 1 Jan 81: Greece. --- 54,60 ---- # LST is Local Star Time (``mestnoe zvezdnoe vremya''). # From Peter Ilieve <peter@memex.co.uk> (December 4, 1994), ! # The original six [EU members]: Belgium, France, (West) Germany, Italy, # Luxembourg, the Netherlands. # Plus, from 1 Jan 73: Denmark, Ireland, United Kingdom. # Plus, from 1 Jan 81: Greece. *************** *** 65,73 **** # referendum in 1972, they are the only country to have said No twice. # Referendums in the other three countries voted Yes.) # ... ! # The only [current nonmember using EU rules] I can speak for is Estonia, ! # which uses EU dates but not at 01:00 GMT, they use midnight GMT. I don't ! # think they know yet what they will do from 1996 onwards. # ... # There shouldn't be any [current members who are not using EU rules]. # A Directive has the force of law, member states are obliged to enact --- 65,72 ---- # referendum in 1972, they are the only country to have said No twice. # Referendums in the other three countries voted Yes.) # ... ! # Estonia ... uses EU dates but not at 01:00 GMT, they use midnight GMT. ! # I don't think they know yet what they will do from 1996 onwards. # ... # There shouldn't be any [current members who are not using EU rules]. # A Directive has the force of law, member states are obliged to enact *************** *** 895,904 **** 3:00 Russia MS%s 1922 Oct 2:00 - EET 1930 Jun 21 3:00 Russia MS%s 1991 Mar 31 2:00s - # From Paul Eggert <eggert@twinsun.com> (May 28, 1994): A guess at recent dates: 2:00 1:00 "EET DST" 1991 Sep 29 2:00s ! 2:00 - EET 1992 Jan 19 2:00s ! 3:00 Russia MS%s # Belgium # Whitman and Shanks disagree; go with Shanks, usually. --- 894,902 ---- 3:00 Russia MS%s 1922 Oct 2:00 - EET 1930 Jun 21 3:00 Russia MS%s 1991 Mar 31 2:00s 2:00 1:00 "EET DST" 1991 Sep 29 2:00s ! 2:00 M-Eur EET%s ! # This may change to `EC' soon. # Belgium # Whitman and Shanks disagree; go with Shanks, usually. *************** *** 1128,1138 **** Rule France 1944 only - Oct 8 1:00 1:00 " DST" Rule France 1945 only - Apr 2 2:00 2:00 " DDST" Rule France 1945 only - Sep 16 3:00 0 - - # From Paul Eggert <eggert@twinsun.com) (November 18, 1993): - # Shanks gives no times for 1975, but according to Cm722, - # France introduced summer time in 1975 from 20 March to 22 September. - Rule France 1975 only - Mar 20 2:00s 1:00 " DST" - Rule France 1975 only - Sep 22 2:00s 0 - Rule France 1976 only - Mar 28 2:00s 1:00 " DST" Rule France 1976 only - Sep lastSun 2:00s 0 - # Shanks gives 0:09 for Paris Mean Time, and Whitman gives 0:09:05, --- 1126,1131 ---- *************** *** 1428,1434 **** 0:00 Lux WET%s 1929 Oct 6 2:00s 0:00 Belgium WET%s 1940 May 14 3:00 1:00 M-Eur WET%s 1944 Sep 18 3:00 ! 1:00 Belgium MET%s 1979 1:00 EC MET%s # Macedonia --- 1421,1427 ---- 0:00 Lux WET%s 1929 Oct 6 2:00s 0:00 Belgium WET%s 1940 May 14 3:00 1:00 M-Eur WET%s 1944 Sep 18 3:00 ! 1:00 Belgium MET%s 1977 1:00 EC MET%s # Macedonia *************** *** 1767,1779 **** 9:00 1:00 VSD 1991 Sep 29 2:00s 9:00 - VSK 1992 Jan 19 2:00s 10:00 Russia VS%s - # MSK is taken; settle for GSK. Zone Asia/Magadan 10:03:12 - LMT 1924 May 2 ! 10:00 - GSK 1957 Mar ! 11:00 Russia GS%s 1991 Mar 31 2:00s ! 10:00 1:00 GSD 1991 Sep 29 2:00s ! 10:00 - GSK 1992 Jan 19 2:00s ! 11:00 Russia GS%s # This name should be Asia/Petropavlovsk-Kamchatski, but that's too long. Zone Asia/Kamchatka 10:34:36 - LMT 1924 May 2 11:00 - PSK 1957 Mar --- 1760,1771 ---- 9:00 1:00 VSD 1991 Sep 29 2:00s 9:00 - VSK 1992 Jan 19 2:00s 10:00 Russia VS%s Zone Asia/Magadan 10:03:12 - LMT 1924 May 2 ! 10:00 - MSK 1957 Mar ! 11:00 Russia MS%s 1991 Mar 31 2:00s ! 10:00 1:00 MSD 1991 Sep 29 2:00s ! 10:00 - MSK 1992 Jan 19 2:00s ! 11:00 Russia MS%s # This name should be Asia/Petropavlovsk-Kamchatski, but that's too long. Zone Asia/Kamchatka 10:34:36 - LMT 1924 May 2 11:00 - PSK 1957 Mar =================================================================== RCS file: RCS/northamerica,v retrieving revision 1995.11 retrieving revision 1995.11.1.1 diff -c -r1995.11 -r1995.11.1.1 *** northamerica 1995/10/30 23:16:48 1995.11 --- northamerica 1995/12/20 01:55:08 1995.11.1.1 *************** *** 14,38 **** # United States # From Arthur David Olson: # US Daylight Saving Time ended on the last Sunday of *October* in 1974. # See, for example, the front page of the Saturday, October 26, 1974 # and Sunday, October 27, 1974 editions of the Washington Post. - # From seismo!munnari!kre: - # I recall also being told by someone once that Canada didn't have - # the DST variations in 74/75 that the US did, but I am not nearly - # sure enough of this to add anything. - - # From Arthur David Olson: - # The above has been confirmed by Bob Devine; we'll go with it here. - # From Arthur David Olson: # Before the Uniform Time Act of 1966 took effect in 1967, observance of # Daylight Saving Time in the US was by local option, except during wartime. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule US 1918 1919 - Mar lastSun 2:00 1:00 D Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War Rule US 1945 only - Sep 30 2:00 0 S --- 14,37 ---- # United States + # From Paul Eggert <eggert@twinsun.com> (1995-12-19): + # A good source for time zone historical data in the US is + # Thomas G. Shanks, The American Atlas (5th edition), + # San Diego: ACS Publications, Inc. (1991). + # Make sure you have the errata sheet; the book is somewhat useless without it. + # It is the source for the US and Puerto Rico entries below. + # From Arthur David Olson: # US Daylight Saving Time ended on the last Sunday of *October* in 1974. # See, for example, the front page of the Saturday, October 26, 1974 # and Sunday, October 27, 1974 editions of the Washington Post. # From Arthur David Olson: # Before the Uniform Time Act of 1966 took effect in 1967, observance of # Daylight Saving Time in the US was by local option, except during wartime. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule US 1918 1919 - Mar lastSun 2:00 1:00 W # War Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War Rule US 1945 only - Sep 30 2:00 0 S *************** *** 55,60 **** --- 54,63 ---- # The YST zone now covers nearly all of the state, AHST just part # of the Aleutian islands. No DST. + # From Paul Eggert (1995-12-19): + # The tables below use `NST', not `NT', for Nome Standard Time. + # I invented `CAWT' for Central Alaska War Time. + # From U. S. Naval Observatory (January 19, 1989): # USA EASTERN 5 H BEHIND UTC NEW YORK, WASHINGTON # USA EASTERN 4 H BEHIND UTC APR 3 - OCT 30 *************** *** 110,182 **** # Hawaii-Aleutian standard time # Samoa standard time # The law doesn't give abbreviations. ! # From Paul Eggert <eggert@twinsun.com> (August 16, 1994): # Howse writes that Alaska switched from the Julian to the Gregorian calendar, # and from east-of-GMT to west-of-GMT days, in 1867 when the US purchased it ! # from Russia. We don't have this data pinned down yet, though. ! ! # Easy stuff first--including Alaska, where we ignore history (since we ! # can't tell if we should give Yukon time or Alaska-Hawaii time for "old" ! # times). ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/New_York -5:00 US E%sT ! Zone America/Chicago -6:00 US C%sT ! Zone America/Denver -7:00 US M%sT ! Zone America/Los_Angeles -8:00 US P%sT ! Zone America/Anchorage -9:00 US AK%sT ! # AK%sT is the abbreviation per USNO ! # Mainland US areas that are always Standard as of 1986. ! Zone America/Fort_Wayne -5:00 US E%sT 1946 ! -5:00 - EST # Always EST as of 1986 ! # From Arthur David Olson (October 28, 1991): ! # An article on page A3 of the Sunday, October 27, 1991 Washington Post ! # notes that Starke County switched from Central time to Eastern time as of ! # October 27, 1991. ! Zone America/Knox_IN -6:00 US C%sT 1991 Oct 27 2:00 ! -5:00 - EST # Always EST as of 1991 ! Zone America/Phoenix -7:00 US M%sT 1946 ! -7:00 - MST # Always MST as of 1986 # From Arthur David Olson (February 13, 1988): ! # However. . .a writer from the Inter Tribal Council of Arizona, Inc., # notes in private correspondence dated 12/28/87 that "Presently, only the # Navajo Nation participates in the Daylight Saving Time policy, due to its # large size and location in three states." (The "only" means that other # tribal nations don't use DST.) ! Link America/Denver America/Shiprock ! # From Bob Devine (January 28, 1988): ! # Michigan didn't observe DST from 1968 to 1973. ! Zone America/Detroit -5:00 US E%sT 1968 ! -5:00 - EST 1973 -5:00 US E%sT ! Zone Pacific/Midway -11:49:28 - LMT 1901 ! -11:00 - NST 1967 Apr # N=Nome ! -11:00 - BST 1983 Nov 30 # B=Bering ! -11:00 - SST # S=Samoa ! ! # Aleutian has a name change. DST, per Naval Observatory. ! ! Zone America/Atka -10:00 US AH%sT 1983 Nov 30 ! -10:00 US HA%sT ! ! # From Arthur David Olson: ! # And then there's Hawaii. ! # DST was observed for one day in 1933; ! # Standard time was change by half an hour in 1947; ! # it's always standard as of 1986. ! ! Zone Pacific/Honolulu -10:30 US H%sT 1933 Apr 30 2:00 ! -10:30 1:00 HDT 1933 May 1 2:00 ! -10:30 US H%sT 1947 Jun 8 2:00 ! -10:00 - HST # Navassa # uninhabited --- 113,428 ---- # Hawaii-Aleutian standard time # Samoa standard time # The law doesn't give abbreviations. + # + # From Paul Eggert (1995-12-19): + # Shanks uses 1983-10-30, not 1983-11-30, for the 1983 transitions. + # Go with Shanks. + + # US Eastern time, represented by New York + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER + Rule NYC 1920 only - Mar lastSun 2:00 1:00 D + Rule NYC 1920 only - Oct lastSun 2:00 0 S + Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D + Rule NYC 1921 1954 - Sep lastSun 2:00 0 S + Rule NYC 1955 1966 - Oct lastSun 2:00 0 S + # Zone NAME GMTOFF RULES FORMAT [UNTIL] + Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:00 + -5:00 US E%sT 1920 + -5:00 NYC E%sT 1942 + -5:00 US E%sT 1946 + -5:00 NYC E%sT 1967 + -5:00 US E%sT + + # US Central time, represented by Chicago + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER + Rule Chicago 1920 only - Jun 13 2:00 1:00 D + Rule Chicago 1920 1921 - Oct lastSun 2:00 0 S + Rule Chicago 1921 only - Mar lastSun 2:00 1:00 D + Rule Chicago 1922 1966 - Apr lastSun 2:00 1:00 D + Rule Chicago 1922 1954 - Sep lastSun 2:00 0 S + Rule Chicago 1955 1966 - Oct lastSun 2:00 0 S + # Zone NAME GMTOFF RULES FORMAT [UNTIL] + Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:00 + -6:00 US C%sT 1920 + -6:00 Chicago C%sT 1936 Mar 1 2:00 + -5:00 - EST 1936 Nov 15 2:00 + -6:00 Chicago C%sT 1942 + -6:00 US C%sT 1946 + -6:00 Chicago C%sT 1967 + -6:00 US C%sT + + # US Mountain time, represented by Denver + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER + Rule Denver 1920 1921 - Mar lastSun 2:00 1:00 D + Rule Denver 1920 only - Oct lastSun 2:00 0 S + Rule Denver 1921 only - May 22 2:00 0 S + Rule Denver 1965 1966 - Apr lastSun 2:00 1:00 D + Rule Denver 1965 1966 - Oct lastSun 2:00 0 S + # Zone NAME GMTOFF RULES FORMAT [UNTIL] + Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00 + -7:00 US E%sT 1920 + -7:00 Denver E%sT 1942 + -7:00 US E%sT 1946 + -7:00 Denver E%sT 1967 + -7:00 US E%sT + + # US Pacific time, represented by Los Angeles + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER + Rule CA 1948 only - Mar 14 2:00 1:00 D + Rule CA 1949 only - Jan 1 2:00 0 S + Rule CA 1950 1966 - Apr lastSun 2:00 1:00 D + Rule CA 1950 1961 - Sep lastSun 2:00 0 S + Rule CA 1962 1966 - Oct lastSun 2:00 0 S + # Zone NAME GMTOFF RULES FORMAT [UNTIL] + Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:00 + -8:00 US P%sT 1946 + -8:00 CA P%sT 1967 + -8:00 US P%sT ! # Alaska ! # AK%sT is the modern abbreviation for -9:00 per USNO. ! # ! # From Paul Eggert (1995-12-19): # Howse writes that Alaska switched from the Julian to the Gregorian calendar, # and from east-of-GMT to west-of-GMT days, in 1867 when the US purchased it ! # from Russia. We omit this transition, since we can't represent changes ! # from Julian to Gregorian. ! # # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Juneau -8:57:41 - LMT 1900 Aug 20 12:00 ! -8:00 - PST 1942 ! -8:00 US P%sT 1946 ! -8:00 - PST 1969 ! -8:00 US P%sT 1983 Oct 30 2:00 ! -9:00 US AK%sT ! Zone America/Yakutat -9:18:55 - LMT 1900 Aug 20 12:00 ! -9:00 - YST 1942 ! -9:00 US Y%sT 1946 ! -9:00 - YST 1969 ! -9:00 US Y%sT 1983 Oct 30 2:00 ! -9:00 US AK%sT ! Zone America/Anchorage -9:59:36 - LMT 1900 Aug 20 12:00 ! -10:00 - CAT 1942 ! -10:00 US CAT/CAWT 1946 ! -10:00 - CAT 1967 Apr ! -10:00 - AHST 1969 ! -10:00 US AH%sT 1983 Oct 30 2:00 ! -9:00 US AK%sT ! Zone America/Nome -11:01:38 - LMT 1900 Aug 20 12:00 ! -11:00 - NST 1942 ! -11:00 US N%sT 1946 ! -11:00 - NST 1967 Apr ! -11:00 - BST 1969 ! -11:00 US B%sT 1983 Oct 30 2:00 ! -9:00 US AK%sT ! Zone America/Adak -11:46:38 - LMT 1900 Aug 20 12:00 ! -11:00 - NST 1942 ! -11:00 US N%sT 1946 ! -11:00 - NST 1967 Apr ! -11:00 - BST 1969 ! -11:00 US B%sT 1983 Oct 30 2:00 ! -10:00 US HA%sT ! # Shanks writes that part of southwest Alaska (e.g. Aniak) ! # switched from -11:00 to -10:00 on 1968-09-22 at 02:00, ! # and another part (e.g. Akiak) made the same switch five weeks later. ! # These switches don't quite make our 1970 cutoff. ! # Hawaii ! # ! # From Arthur David Olson: ! # And then there's Hawaii. ! # DST was observed for one day in 1933; ! # standard time was changed by half an hour in 1947; ! # it's always standard as of 1986. ! # ! # From Paul Eggert: ! # Shanks says the 1933 experiment lasted for three weeks. Go with Shanks. ! # ! Zone Pacific/Honolulu -10:31:26 - LMT 1900 Jan 1 12:00 ! -10:30 - HST 1933 Apr 30 2:00 ! -10:30 1:00 HDT 1933 May 21 2:00 ! -10:30 US H%sT 1947 Jun 8 2:00 ! -10:00 - HST ! Zone Pacific/Midway -11:49:28 - LMT 1901 ! -11:00 - NST 1967 Apr # N=Nome ! -11:00 - BST 1983 Nov 30 # B=Bering ! -11:00 - SST # S=Samoa ! ! # Now we turn to US areas that have diverged from the consensus since 1970. + # Arizona mostly uses MST. + Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 12:00 + -7:00 US M%sT 1944 Jan 1 00:01 + -7:00 - MST 1944 Mar 17 00:01 + -7:00 US M%sT 1944 Oct 1 00:01 + -7:00 - MST 1967 + -7:00 US M%sT 1968 + -7:00 - MST # From Arthur David Olson (February 13, 1988): ! # A writer from the Inter Tribal Council of Arizona, Inc., # notes in private correspondence dated 12/28/87 that "Presently, only the # Navajo Nation participates in the Daylight Saving Time policy, due to its # large size and location in three states." (The "only" means that other # tribal nations don't use DST.) ! # Southern Idaho and eastern Oregon switched four weeks late in 1974. ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:00 ! -8:00 US P%sT 1923 May 13 2:00 ! -7:00 US M%sT 1974 ! -7:00 - MST 1974 Feb 3 2:00 ! -7:00 US M%sT ! # Indiana ! # ! # From Paul Eggert (1995-12-19): ! # Indiana generally observes either EST all year, or CST/CDT, ! # but areas near Cincinnati and Louisville use those cities' timekeeping ! # and in 1969 and 1970 the whole state observed daylight time; ! # and there are other exceptions as noted below. ! # Shanks partitions Indiana into 345 regions, each with its own time history, ! # and writes ``Even newspaper reports present contradictory information.'' ! # Fortunately, most of the complexity occurred before our cutoff date of 1970. ! # ! # Since 1970, EST-only Indiana has been like America/Indianapolis, ! # with exceptions noted below for Crawford, Starke, and Switzerland counties. ! # The parts of Indiana not listed below have been like America/Chicago, ! # America/Louisville, or America/New_York. ! # ! # Other than Indianapolis, the Indiana place names are so nondescript ! # that they would be ambiguous if we left them at the `America' level. ! # So we reluctantly put them all in a subdirectory `America/Indiana'. ! # ! # Most of EST-only Indiana last observed DST in 1970. ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER ! Rule Indianapolis 1941 only - Jun 22 2:00 1:00 D ! Rule Indianapolis 1941 1954 - Sep lastSun 2:00 0 S ! Rule Indianapolis 1946 1954 - Apr lastSun 2:00 1:00 D ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:00 ! -6:00 US C%sT 1920 ! -6:00 Indianapolis C%sT 1942 ! -6:00 US C%sT 1946 ! -6:00 Indianapolis C%sT 1955 Apr 24 2:00 ! -5:00 - EST 1957 Sep 29 2:00 ! -6:00 - CST 1958 Apr 27 2:00 ! -5:00 - EST 1969 ! -5:00 US E%sT 1971 ! -5:00 - EST ! Link America/Indianapolis America/Indiana/Indianapolis ! # ! # Part of Crawford County, Indiana, last observed DST in 1975, ! # and left its clocks alone in 1974. ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER ! Rule Marengo 1951 only - Apr lastSun 2:00 1:00 D ! Rule Marengo 1951 only - Sep lastSun 2:00 0 S ! Rule Marengo 1954 1960 - Apr lastSun 2:00 1:00 D ! Rule Marengo 1954 1960 - Sep lastSun 2:00 0 S ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Indiana/Marengo -5:45:23 - LMT 1883 Nov 18 12:00 ! -6:00 US C%sT 1951 ! -6:00 Marengo C%sT 1961 Apr 30 2:00 ! -5:00 - EST 1969 ! -5:00 US E%sT 1974 Jan 6 2:00 ! -6:00 1:00 CDT 1974 Oct 27 2:00 ! -5:00 US E%sT 1976 ! -5:00 - EST ! # ! # Starke County, Indiana ! # From Arthur David Olson (October 28, 1991): ! # An article on page A3 of the Sunday, October 27, 1991 Washington Post ! # notes that Starke County switched from Central time to Eastern time as of ! # October 27, 1991. ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER ! Rule Starke 1947 1961 - Apr lastSun 2:00 1:00 D ! Rule Starke 1947 1954 - Sep lastSun 2:00 0 S ! Rule Starke 1955 1956 - Oct lastSun 2:00 0 S ! Rule Starke 1957 1958 - Sep lastSun 2:00 0 S ! Rule Starke 1959 1961 - Oct lastSun 2:00 0 S ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Indiana/Knox -5:46:30 - LMT 1883 Nov 18 12:00 ! -6:00 US C%sT 1947 ! -6:00 Starke C%sT 1962 Apr 29 2:00 ! -5:00 - EST 1963 Oct 27 2:00 ! -6:00 US C%sT 1991 Oct 27 2:00 ! -5:00 - EST ! # ! # Switzerland County, Indiana, last observed DST in 1972. ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Indiana/Vevay -5:40:16 - LMT 1883 Nov 18 12:00 ! -6:00 US C%sT 1954 Apr 25 2:00 ! -5:00 - EST 1969 ! -5:00 US E%sT 1973 ! -5:00 - EST ! # Part of Kentucky left its clocks alone in 1974. ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER ! Rule Louisville 1921 only - May 1 2:00 1:00 D ! Rule Louisville 1921 only - Sep 1 2:00 0 S ! Rule Louisville 1941 1961 - Apr lastSun 2:00 1:00 D ! Rule Louisville 1941 only - Sep lastSun 2:00 0 S ! Rule Louisville 1946 only - Jun 2 2:00 0 S ! Rule Louisville 1950 1955 - Sep lastSun 2:00 0 S ! Rule Louisville 1956 1960 - Oct lastSun 2:00 0 S ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Louisville -5:43:02 - LMT 1883 Nov 18 12:00 ! -6:00 US C%sT 1921 ! -6:00 Louisville C%sT 1942 ! -6:00 US C%sT 1946 ! -6:00 Louisville C%sT 1961 Jul 23 2:00 ! -5:00 - EST 1968 ! -5:00 US E%sT 1974 Jan 6 2:00 ! -6:00 1:00 CDT 1974 Oct 27 2:00 -5:00 US E%sT ! # Michigan ! # ! # From Bob Devine (January 28, 1988): ! # Michigan didn't observe DST from 1968 to 1973. ! # ! # From Paul Eggert (1995-12-19): ! # Shanks writes that Michigan started using standard time on 1885 Sep 18, ! # but Howse (p 126) writes that Detroit kept ! # ! # local time until 1900 when the City Council decreed that clocks should ! # be put back twenty-eight minutes to Central Standard Time. Half the ! # city obeyed, half refused. After considerable debate, the decision ! # was rescinded and the city reverted to Sun time. A derisive offer to ! # erect a sundial in front of the city hall was referred to the ! # Committee on Sewers. Then, in 1905, Central time was adopted ! # by city vote. ! # ! # This story is too entertaining to be false, so go with Howse over Shanks. ! # ! # Most of Michigan observed DST from 1973 on, but was a bit late in 1975. ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER ! Rule Detroit 1948 only - Apr lastSun 2:00 1:00 D ! Rule Detroit 1948 only - Sep lastSun 2:00 0 S ! Rule Detroit 1967 only - Jun 14 2:00 1:00 D ! Rule Detroit 1967 only - Oct lastSun 2:00 0 S ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Detroit -5:32:11 - LMT 1905 ! -6:00 - CST 1915 May 15 2:00 ! -5:00 - EST 1942 ! -5:00 US E%sT 1946 ! -5:00 Detroit E%sT 1973 ! -5:00 US E%sT 1975 ! -5:00 - EST 1975 Apr 27 2:00 ! -5:00 US E%sT ! # ! # The Michigan border with Wisconsin switched from EST to CST/CDT in 1973. ! # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER ! Rule Menominee 1946 only - Apr lastSun 2:00 1:00 D ! Rule Menominee 1946 only - Sep lastSun 2:00 0 S ! Rule Menominee 1966 only - Apr lastSun 2:00 1:00 D ! Rule Menominee 1966 only - Oct lastSun 2:00 0 S ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00 ! -6:00 US C%sT 1946 ! -6:00 Menominee C%sT 1969 Apr 27 2:00 ! -5:00 - EST 1973 Apr 29 2:00 ! -6:00 US C%sT # Navassa # uninhabited *************** *** 189,195 **** Link America/Chicago CST6CDT Link America/Denver MST7MDT Link America/Los_Angeles PST8PDT ! Link America/Fort_Wayne EST Link America/Phoenix MST Link Pacific/Honolulu HST --- 435,441 ---- Link America/Chicago CST6CDT Link America/Denver MST7MDT Link America/Los_Angeles PST8PDT ! Link America/Indianapolis EST Link America/Phoenix MST Link Pacific/Honolulu HST *************** *** 197,203 **** # From Paul Eggert <eggert@twinsun.com> (November 18, 1993): ! # 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. --- 443,449 ---- # From Paul Eggert <eggert@twinsun.com> (November 18, 1993): ! # A good source for time zone historical data outside the US 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. *************** *** 355,361 **** Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S Rule StJohns 1960 max - Oct lastSun 2:00 0 S Rule StJohns 1987 only - Apr Sun>=1 2:00 1:00 D ! Rule StJohns 1988 only - Apr Sun>=1 2:00 2:00 D Rule StJohns 1989 max - Apr Sun>=1 2:00 1:00 D # St John's has an apostrophe, but Posix file names can't have apostrophes. # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 601,607 ---- Rule StJohns 1951 1959 - Sep lastSun 2:00 0 S Rule StJohns 1960 max - Oct lastSun 2:00 0 S Rule StJohns 1987 only - Apr Sun>=1 2:00 1:00 D ! Rule StJohns 1988 only - Apr Sun>=1 2:00 2:00 DD Rule StJohns 1989 max - Apr Sun>=1 2:00 1:00 D # St John's has an apostrophe, but Posix file names can't have apostrophes. # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 899,907 **** # Puerto Rico # There are too many San Juans elsewhere, so we'll use `Puerto_Rico'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Puerto_Rico -4:24:28 - LMT 1899 Mar 28 12:00 # San Juan -4:00 - AST 1942 May 3 ! -4:00 1:00 ADT 1945 Sep 30 2:00 -4:00 - AST # St Kitts-Nevis --- 1145,1153 ---- # Puerto Rico # There are too many San Juans elsewhere, so we'll use `Puerto_Rico'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan -4:00 - AST 1942 May 3 ! -4:00 1:00 AWT 1945 Sep 30 2:00 -4:00 - AST # St Kitts-Nevis =================================================================== RCS file: RCS/southamerica,v retrieving revision 1995.11 retrieving revision 1995.11.1.1 diff -c -r1995.11 -r1995.11.1.1 *** southamerica 1995/10/30 23:16:48 1995.11 --- southamerica 1995/12/20 01:55:08 1995.11.1.1 *************** *** 354,360 **** # Uruguay # From Paul Eggert <eggert@twinsun.com> (November 18, 1993): # Uruguay wins the prize for the strangest peacetime manipulation of the rules. - # Your guess is as good as mine for what happened after 1989. # From Shanks (1991): # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Uruguay 1920 only - May 1 0:00 0 S --- 354,359 ----