[tz] [PATCH 2/4] Move obsolescent Americas entries to 'backward'.

Paul Eggert eggert at cs.ucla.edu
Mon Aug 26 17:16:24 UTC 2013


This continues in the series of moving entries to 'backward' if
they exist only because of obsolete tz rules about country codes.
In this case, Zone entries are changed to Links; this doesn't
affect any post-1970 time stamps, and the pre-1970 time stamps
are out of scope and are often of dubious reliability.
* backward, northamerica, southamerica (America/Anguilla)
(America/Antigua, America/Aruba, America/Blanc-Sablon)
(America/Cayman, America/Curacao, America/Dominica)
(America/Grenada, America/Guadeloupe, America/Montserrat)
(America/Port_of_Spain, America/St_Kitts, America/St_Lucia)
(America/St_Thomas, America/St_Vincent, America/Tortola):
Now 'backward' links to America/Puerto_Rico.
(America/Atikokan): Now a 'backward' link to America/Panama.
(America/Creston): Now a 'backward' link to America/Phoenix.
(America/Nassau): Now a 'backward' link to America/Toronto.
* backward (America/Coral_Harbour, America/Kralendijk)
(America/Lower_Princes, America/Marigot, America/St_Barthelemy)
(America/Virgin): Adjust to avoid link-to-a-link.
---
 backward     |  31 +++++++++++++----
 northamerica | 110 +++++++++++++++++++----------------------------------------
 southamerica |  20 +++--------
 3 files changed, 64 insertions(+), 97 deletions(-)

diff --git a/backward b/backward
index 561e2ff..2ee440d 100644
--- a/backward
+++ b/backward
@@ -7,27 +7,46 @@
 
 Link	Africa/Asmara		Africa/Asmera
 Link	Africa/Bamako		Africa/Timbuktu
+Link	America/Puerto_Rico	America/Anguilla
+Link	America/Puerto_Rico	America/Antigua
 Link	America/Argentina/Catamarca	America/Argentina/ComodRivadavia
+Link	America/Puerto_Rico	America/Aruba
+Link	America/Panama		America/Atikokan
 Link	America/Adak		America/Atka
+Link	America/Puerto_Rico	America/Blanc-Sablon
 Link	America/Argentina/Buenos_Aires	America/Buenos_Aires
 Link	America/Argentina/Catamarca	America/Catamarca
-Link	America/Atikokan	America/Coral_Harbour
+Link	America/Panama		America/Cayman
+Link	America/Panama		America/Coral_Harbour
 Link	America/Argentina/Cordoba	America/Cordoba
+Link	America/Phoenix		America/Creston
+Link	America/Puerto_Rico	America/Curacao
+Link	America/Puerto_Rico	America/Dominica
 Link	America/Tijuana		America/Ensenada
 Link	America/Indiana/Indianapolis	America/Fort_Wayne
+Link	America/Puerto_Rico	America/Grenada
+Link	America/Puerto_Rico	America/Guadeloupe
 Link	America/Indiana/Indianapolis	America/Indianapolis
 Link	America/Argentina/Jujuy	America/Jujuy
 Link	America/Indiana/Knox	America/Knox_IN
-Link	America/Curacao		America/Kralendijk
+Link	America/Puerto_Rico	America/Kralendijk
 Link	America/Kentucky/Louisville	America/Louisville
-Link	America/Curacao		America/Lower_Princes
-Link	America/Guadeloupe	America/Marigot
+Link	America/Puerto_Rico	America/Lower_Princes
+Link	America/Puerto_Rico	America/Marigot
 Link	America/Argentina/Mendoza	America/Mendoza
+Link	America/Puerto_Rico	America/Montserrat
+Link	America/Toronto		America/Nassau
+Link	America/Puerto_Rico	America/Port_of_Spain
 Link	America/Rio_Branco	America/Porto_Acre
 Link	America/Argentina/Cordoba	America/Rosario
 Link	America/Denver		America/Shiprock
-Link	America/Guadeloupe	America/St_Barthelemy
-Link	America/St_Thomas	America/Virgin
+Link	America/Puerto_Rico	America/St_Barthelemy
+Link	America/Puerto_Rico	America/St_Kitts
+Link	America/Puerto_Rico	America/St_Lucia
+Link	America/Puerto_Rico	America/St_Thomas
+Link	America/Puerto_Rico	America/St_Vincent
+Link	America/Puerto_Rico	America/Tortola
+Link	America/Puerto_Rico	America/Virgin
 Link	Pacific/Auckland	Antarctica/McMurdo
 Link	Pacific/Auckland	Antarctica/South_Pole
 Link	Europe/Oslo		Arctic/Longyearbyen
diff --git a/northamerica b/northamerica
index 7676c77..5d8ad63 100644
--- a/northamerica
+++ b/northamerica
@@ -1341,25 +1341,23 @@ Zone America/Moncton	-4:19:08 -	LMT	1883 Dec  9
 
 # Quebec
 
-# From Paul Eggert (2006-07-09):
+# From Paul Eggert (2013-08-26):
 # Shanks & Pottenger write that since 1970 most of Quebec has been
 # like Montreal.
 
-# From Paul Eggert (2006-06-27):
 # Matthews and Vincent (1998) also write that Quebec east of the -63
 # meridian is supposed to observe AST, but residents as far east as
 # Natashquan use EST/EDT, and residents east of Natashquan use AST.
-# In "Official time in Quebec" the Quebec department of justice writes in
-# http://www.justice.gouv.qc.ca/english/publications/generale/temps-regl-1-a.htm
-# that "The residents of the Municipality of the
-# Cote-Nord-du-Golfe-Saint-Laurent and the municipalities of Saint-Augustin,
-# Bonne-Esperance and Blanc-Sablon apply the Official Time Act as it is
-# written and use Atlantic standard time all year round. The same applies to
-# the residents of the Native facilities along the lower North Shore."
-# <http://www.assnat.qc.ca/eng/37legislature2/Projets-loi/Publics/06-a002.htm>
+# The Quebec department of justice writes in
+# "The situation in Minganie and Basse-Cote-Nord"
+# http://www.justice.gouv.qc.ca/english/publications/generale/temps-minganie-a.htm
+# that the coastal strip from just east of Natashquan to Blanc-Sablon
+# observes Atlantic standard time all year round.
+# http://www.assnat.qc.ca/Media/Process.aspx?MediaId=ANQ.Vigie.Bll.DocumentGenerique_8845en
 # says this common practice was codified into law as of 2007.
 # For lack of better info, guess this practice began around 1970, contra to
 # Shanks & Pottenger who have this region observing AST/ADT.
+# See America/Puerto_Rico.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Mont	1917	only	-	Mar	25	2:00	1:00	D
@@ -1392,9 +1390,6 @@ Rule	Mont	1951	1956	-	Sep	lastSun	2:00	0	S
 Rule	Mont	1957	1973	-	Oct	lastSun	2:00	0	S
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Blanc-Sablon -3:48:28 -	LMT	1884
-			-4:00	Canada	A%sT	1970
-			-4:00	-	AST
 Zone America/Montreal	-4:54:16 -	LMT	1884
 			-5:00	Mont	E%sT	1918
 			-5:00	Canada	E%sT	1919
@@ -1468,14 +1463,16 @@ Zone America/Montreal	-4:54:16 -	LMT	1884
 # can say for certain that Atikokan has been practicing the current
 # time keeping since 1952, at least.
 
-# From Paul Eggert (2006-07-17):
+# From Paul Eggert (2013-08-26):
 # Shanks & Pottenger say that Atikokan has agreed with Rainy River
 # ever since standard time was introduced, but the information from
 # McKinnon sounds more authoritative.  For now, assume that Atikokan
 # switched to EST immediately after WWII era daylight saving time
 # ended.  This matches the old (less-populous) America/Coral_Harbour
 # entry since our cutoff date of 1970, so we can move
-# America/Coral_Harbour to the 'backward' file.
+# America/Coral_Harbour to the 'backward' file.  And Atikokan itself
+# is the same as America/Panama since 1970, so we can move
+# America/Atikokan to the 'backward' file as well.
 
 # From Mark Brader (2010-03-06):
 #
@@ -1633,11 +1630,6 @@ Zone America/Rainy_River -6:18:16 -	LMT	1895
 			-6:00	Canada	C%sT	1940 Sep 29
 			-6:00	1:00	CDT	1942 Feb  9 2:00s
 			-6:00	Canada	C%sT
-Zone America/Atikokan	-6:06:28 -	LMT	1895
-			-6:00	Canada	C%sT	1940 Sep 29
-			-6:00	1:00	CDT	1942 Feb  9 2:00s
-			-6:00	Canada	C%sT	1945 Sep 30 2:00
-			-5:00	-	EST
 
 
 # Manitoba
@@ -1872,7 +1864,8 @@ Zone America/Edmonton	-7:33:52 -	LMT	1906 Sep
 # period should be PDT rather than MST, but that doesn't seem important enough
 # (to anyone) to further complicate the rules.
 
-# The transition dates (and times) are guesses.
+# From Paul Eggert (2013-08-26):
+# See America/Phoenix, since Creston has agreed with Phoenix since 1970.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Vanc	1918	only	-	Apr	14	2:00	1:00	D
@@ -1892,10 +1885,6 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 			-8:00	Canada	P%sT	1947
 			-8:00	Vanc	P%sT	1972 Aug 30 2:00
 			-7:00	-	MST
-Zone America/Creston	-7:46:04 -	LMT	1884
-			-7:00	-	MST	1916 Oct 1
-			-8:00	-	PST	1918 Jun 2
-			-7:00	-	MST
 
 # Northwest Territories, Nunavut, Yukon
 
@@ -2546,15 +2535,10 @@ Zone America/Santa_Isabel	-7:39:28 -	LMT	1922 Jan  1  0:20:32
 ###############################################################################
 
 # Anguilla
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Anguilla	-4:12:16 -	LMT	1912 Mar 2
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Antigua and Barbuda
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Antigua	-4:07:12 -	LMT	1912 Mar 2
-			-5:00	-	EST	1951
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Bahamas
 #
@@ -2564,14 +2548,8 @@ Zone	America/Antigua	-4:07:12 -	LMT	1912 Mar 2
 # The Bahamas announced about a month ago that they plan to change their DST
 # rules to sync with the U.S. starting in 2007....
 # http://www.jonesbahamas.com/?c=45&a=10412
-
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Bahamas	1964	1975	-	Oct	lastSun	2:00	0	S
-Rule	Bahamas	1964	1975	-	Apr	lastSun	2:00	1:00	D
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Nassau	-5:09:30 -	LMT	1912 Mar 2
-			-5:00	Bahamas	E%sT	1976
-			-5:00	US	E%sT
+#
+# See America/Toronto.
 
 # Barbados
 
@@ -2617,14 +2595,11 @@ Zone	America/Belize	-5:52:48 -	LMT	1912 Apr
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Atlantic/Bermuda	-4:19:18 -	LMT	1930 Jan  1 2:00    # Hamilton
 			-4:00	-	AST	1974 Apr 28 2:00
-			-4:00	Bahamas	A%sT	1976
+			-4:00	Canada	A%sT	1976
 			-4:00	US	A%sT
 
 # Cayman Is
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Cayman	-5:25:32 -	LMT	1890		# Georgetown
-			-5:07:12 -	KMT	1912 Feb    # Kingston Mean Time
-			-5:00	-	EST
+# See America/Panama.
 
 # Costa Rica
 
@@ -2870,9 +2845,7 @@ Zone	America/Havana	-5:29:28 -	LMT	1890
 			-5:00	Cuba	C%sT
 
 # Dominica
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Dominica	-4:05:36 -	LMT	1911 Jul 1 0:01		# Roseau
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Dominican Republic
 
@@ -2921,15 +2894,10 @@ Zone America/El_Salvador -5:56:48 -	LMT	1921		# San Salvador
 			-6:00	Salv	C%sT
 
 # Grenada
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Grenada	-4:07:00 -	LMT	1911 Jul	# St George's
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Guadeloupe
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Guadeloupe	-4:06:08 -	LMT	1911 Jun 8	# Pointe a Pitre
-			-4:00	-	AST
-# Use America/Guadeloupe also for St Barthelemy and for St Martin (French part).
+# See America/Puerto_Rico.
 
 # Guatemala
 #
@@ -3099,9 +3067,7 @@ Zone America/Martinique	-4:04:20 -      LMT	1890		# Fort-de-France
 # From Paul Eggert (2006-03-22):
 # In 1995 volcanic eruptions forced evacuation of Plymouth, the capital.
 # world.gazetteer.com says Cork Hill is the most populous location now.
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul 1 0:01   # Cork Hill
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Nicaragua
 #
@@ -3182,16 +3148,17 @@ Zone America/Puerto_Rico -4:24:25 -	LMT	1899 Mar 28 12:00    # San Juan
 			-4:00	US	A%sT	1946
 			-4:00	-	AST
 
+# St Barthelemy
+# See America/Puerto_Rico.
+
 # St Kitts-Nevis
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/St_Kitts	-4:10:52 -	LMT	1912 Mar 2	# Basseterre
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # St Lucia
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/St_Lucia	-4:04:00 -	LMT	1890		# Castries
-			-4:04:00 -	CMT	1912	    # Castries Mean Time
-			-4:00	-	AST
+# See America/Puerto_Rico.
+
+# St Martin (French part)
+# See America/Puerto_Rico.
 
 # St Pierre and Miquelon
 # There are too many St Pierres elsewhere, so we'll use `Miquelon'.
@@ -3202,10 +3169,7 @@ Zone America/Miquelon	-3:44:40 -	LMT	1911 May 15	# St Pierre
 			-3:00	Canada	PM%sT
 
 # St Vincent and the Grenadines
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/St_Vincent	-4:04:56 -	LMT	1890		# Kingstown
-			-4:04:56 -	KMT	1912	   # Kingstown Mean Time
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Turks and Caicos
 #
@@ -3239,11 +3203,7 @@ Zone America/Grand_Turk	-4:44:32 -	LMT	1890
 			-5:00	TC	E%sT
 
 # British Virgin Is
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Tortola	-4:18:28 -	LMT	1911 Jul    # Road Town
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Virgin Is
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/St_Thomas	-4:19:44 -	LMT	1911 Jul    # Charlotte Amalie
-			-4:00	-	AST
+# See America/Puerto_Rico.
diff --git a/southamerica b/southamerica
index 17150a8..59f5fe7 100644
--- a/southamerica
+++ b/southamerica
@@ -631,10 +631,7 @@ Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
 			-3:00	-	ART
 
 # Aruba
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Aruba	-4:40:24 -	LMT	1912 Feb 12	# Oranjestad
-			-4:30	-	ANT	1965 # Netherlands Antilles Time
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Bolivia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1328,7 +1325,7 @@ Zone	America/Bogota	-4:56:16 -	LMT	1884 Mar 13
 
 # Curacao
 
-# Milne gives 4:35:46.9 for Curacao mean time; round to nearest.
+# Milne gives 4:35:46.9 for Curacao mean time.
 #
 # From Paul Eggert (2006-03-22):
 # Shanks & Pottenger say that The Bottom and Philipsburg have been at
@@ -1344,14 +1341,7 @@ Zone	America/Bogota	-4:56:16 -	LMT	1884 Mar 13
 # Netherlands as Kingdom Islands.  This won't affect their time zones
 # though, as far as we know.
 #
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Curacao	-4:35:47 -	LMT	1912 Feb 12	# Willemstad
-			-4:30	-	ANT	1965 # Netherlands Antilles Time
-			-4:00	-	AST
-
-# Sint Maarten
-# Bonaire, Sint Estatius and Saba
-# Use America/Curacao.
+# For all these regions, see America/Puerto_Rico.
 
 # Ecuador
 #
@@ -1625,9 +1615,7 @@ Zone America/Paramaribo	-3:40:40 -	LMT	1911
 			-3:00	-	SRT
 
 # Trinidad and Tobago
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Port_of_Spain -4:06:04 -	LMT	1912 Mar 2
-			-4:00	-	AST
+# See America/Puerto_Rico.
 
 # Uruguay
 # From Paul Eggert (1993-11-18):
-- 
1.8.1.2





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