diff options
Diffstat (limited to 'time/northamerica')
| -rw-r--r-- | time/northamerica | 82 |
1 files changed, 63 insertions, 19 deletions
diff --git a/time/northamerica b/time/northamerica index 5c0c02c..af81c5e 100644 --- a/time/northamerica +++ b/time/northamerica @@ -1,4 +1,4 @@ -# @(#)northamerica 7.28 +# @(#)northamerica 7.29 # also includes Central America and the Caribbean # This data is by no means authoritative; if you think you know better, @@ -462,11 +462,19 @@ Link Pacific/Honolulu HST ################################################################################ -# From Paul Eggert <eggert@twinsun.com> (1993-11-18): +# From Paul Eggert <eggert@twinsun.com> (1996-11-22): # 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. +# +# Gwillim Law <LAW@encmail.encompass.com> writes that a good source +# for recent time zone data is the International Air Transport +# Association's Standard Schedules Information Manual (IATA SSIM), +# published semiannually. Law sent in several helpful summaries +# of the IATA's data after 1990. +# +# Except where otherwise noted, Shanks is the source for entries through 1990, +# and IATA SSIM is the source for entries after 1990. # # Another source occasionally used is Edward W. Whitman, World Time Differences, # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which @@ -523,7 +531,7 @@ Rule Canada 1974 max - Oct lastSun 2:00 0 S Rule Canada 1987 max - Apr Sun>=1 2:00 1:00 D -# Newfoundland +# Newfoundland (except Labrador) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule StJohns 1917 1918 - Apr Sun>=8 2:00 1:00 D @@ -560,11 +568,23 @@ 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] Zone America/St_Johns -3:30:52 - LMT 1884 - -3:31 StJohns N%sT 1935 Mar 30 + -3:30:52 StJohns N%sT 1935 Mar 30 -3:30 StJohns N%sT -# Labrador, New Brunswick, Nova Scotia, Prince Edward I +# east Labrador + +# The name `Happy Valley-Goose Bay' is too long; use `Goose Bay'. +# Zone NAME GMTOFF RULES FORMAT [UNTIL] +Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay + -3:30:52 StJohns NST 1919 + -3:30:52 - NST 1935 Mar 30 + -3:30 - NST 1936 + -3:30 StJohns N%sT 1966 Mar 15 2:00 + -4:00 StJohns A%sT + + +# west Labrador, New Brunswick, Nova Scotia, Prince Edward I # From Paul Eggert (1996-06-12): # Shanks writes that since 1970 most of this region has been like Halifax. @@ -825,9 +845,17 @@ Zone America/Dawson_Creek -8:00:56 - LMT 1884 # Northwest Territories, Yukon -# From Paul Eggert (1996-06-12): +# From Paul Eggert (1996-10-07): # Dawson switched to PST in 1973. Inuvik switched to MST in 1979. # Shanks's table for Watson Lake is corrupted, so we have no data there. +# Mathew Englander <mathew@io.org> (1996-10-07) gives the following refs: +# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68, +# c. 7 defines Yukon standard time as UTC-9. This is still valid; +# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1). +# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00. +# * O.I.C. 1980/02 established DST. +# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00. +# Shanks says Yukon's 1973-10-28 switch was at 2:00; go with Englander. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NT_YK 1918 only - Apr 14 2:00 1:00 D @@ -857,7 +885,7 @@ Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20 -9:00 NT_YK Y%sT 1966 Jul 1 2:00 -8:00 NT_YK P%sT Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 - -9:00 NT_YK Y%sT 1973 Oct lastSun 2:00 + -9:00 NT_YK Y%sT 1973 Oct 28 0:00 -8:00 NT_YK P%sT @@ -1070,8 +1098,10 @@ Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S -Rule CR 1991 only - Jan 19 0:00 1:00 D -Rule CR 1991 only - Jul 1 0:00 0 S +Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D +# IATA SSIM (1991-09) says the following was at 1:00; go with Shanks. +Rule CR 1991 only - Jul 1 0:00 0 S +Rule CR 1992 only - Mar 15 0:00 0 S # There are too many San Joses elsewhere, so we'll use `Costa Rica'. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose @@ -1114,10 +1144,11 @@ Rule Cuba 1978 only - May 7 0:00 1:00 D Rule Cuba 1978 1980 - Oct Sun>=8 0:00 0 S Rule Cuba 1979 1980 - Mar Sun>=15 0:00 1:00 D Rule Cuba 1981 1985 - May Sun>=5 0:00 1:00 D -Rule Cuba 1981 max - Oct Sun>=8 0:00 0 S +Rule Cuba 1981 1990 - Oct Sun>=8 0:00 0 S Rule Cuba 1986 1989 - Mar Sun>=14 0:00 1:00 D -Rule Cuba 1990 only - Apr 1 0:00 1:00 D -Rule Cuba 1991 max - Mar Sun>=14 0:00 1:00 D +Rule Cuba 1990 max - Apr Sun>=1 0:00 1:00 D +Rule Cuba 1991 1995 - Oct Sun>=8 0:00s 0 S +Rule Cuba 1996 max - Oct Sun>=1 0:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Havana -5:29:28 - LMT 1890 @@ -1168,6 +1199,8 @@ Rule Guat 1973 only - Nov 25 0:00 1:00 D Rule Guat 1974 only - Feb 24 0:00 0 S Rule Guat 1983 only - May 21 0:00 1:00 D Rule Guat 1983 only - Sep 22 0:00 0 S +Rule Guat 1991 only - Mar 23 0:00 1:00 D +Rule Guat 1991 only - Sep 7 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5 -6:00 Guat C%sT @@ -1177,8 +1210,9 @@ Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5 Rule Haiti 1983 only - May 8 0:00 1:00 D Rule Haiti 1984 1987 - Apr lastSun 0:00 1:00 D Rule Haiti 1983 1987 - Oct lastSun 0:00 0 S -Rule Haiti 1988 max - Apr Sun>=1 2:00 1:00 D -Rule Haiti 1988 max - Oct lastSun 2:00 0 S +# Shanks says AT is 2:00, but IATA SSIM (1991/1996) says 1:00s. Go with IATA. +Rule Haiti 1988 max - Apr Sun>=1 1:00s 1:00 D +Rule Haiti 1988 max - Oct lastSun 1:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Port-au-Prince -4:49:20 - LMT 1890 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT @@ -1203,7 +1237,8 @@ Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr Zone America/Jamaica -5:07:12 - LMT 1890 # Kingston -5:07 - KMT 1912 Feb # Kingston Mean Time -5:00 - EST 1974 Jan 6 2:00 - -5:00 US E%sT + -5:00 US E%sT 1984 + -5:00 - EST # Martinique # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1222,12 +1257,15 @@ Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Plymouth # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Nic 1979 1980 - Mar Sun>=16 0:00 1:00 D Rule Nic 1979 1980 - Jun Mon>=23 0:00 0 S +Rule Nic 1992 only - Jan 1 4:00 1:00 D +Rule Nic 1992 only - Sep 24 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Managua -5:45:08 - LMT 1890 -5:45 - MMT 1934 Jun 23 # Managua Mean Time -6:00 - CST 1973 May -5:00 - EST 1975 Feb 16 - -6:00 Nic C%sT + -6:00 Nic C%sT 1993 Jan 1 4:00 + -5:00 - EST # Panama # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1268,11 +1306,17 @@ Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown -4:00 - AST # Turks and Caicos +# From Paul Eggert (1996-11-22): +# Shanks says they use US DST rules, but IATA SSIM (1991/1996) +# says they switch at midnight. Go with IATA SSIM. +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule TC 1979 1986 - Apr lastSun 0:00 1:00 D +Rule TC 1979 max - Oct lastSun 0:00 0 S +Rule TC 1987 max - Apr Sun>=1 0:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Grand_Turk -4:44:32 - LMT 1890 -5:07 - KMT 1912 Feb # Kingston Mean Time - -5:00 - EST 1979 Apr 29 2:00 - -5:00 US E%sT + -5:00 TC E%sT # British Virgin Is # Zone NAME GMTOFF RULES FORMAT [UNTIL] |