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-rw-r--r--share/zoneinfo/northamerica82
1 files changed, 63 insertions, 19 deletions
diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica
index 5c0c02cc9315..af81c5edb914 100644
--- a/share/zoneinfo/northamerica
+++ b/share/zoneinfo/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]
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 21:17:58 +0000