diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica index 236922d75454..5c25664b234d 100644 --- a/share/zoneinfo/northamerica +++ b/share/zoneinfo/northamerica @@ -1,5 +1,5 @@ # 
-# @(#)northamerica	8.28
+# @(#)northamerica	8.30
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -1955,6 +1955,58 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # http://www.conae.gob.mx/ahorro/horaver2001_m1_2002.html (2002-02-20)
 # confirms this.  Sonora as usual is the only state where DST is not applied.
 
+# From Steffen Thorsen (2009-12-28):
+#
+# Steffen Thorsen wrote:
+# > Mexico's House of Representatives has approved a proposal for northern
+# > Mexico's border cities to share the same daylight saving schedule as
+# > the United States.
+# Now this has passed both the Congress and the Senate, so starting from
+# 2010, some border regions will be the same:
+# 
+# http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides-border/
+# 
+# 
+# http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario_de_frontera_con_eu/621939
+# 
+# (Spanish)
+#
+# Could not find the new law text, but the proposed law text changes are here:
+# 
+# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf
+# 
+# (Gaceta Parlamentaria)
+#
+# There is also a list of the votes here:
+# 
+# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html
+# 
+#
+# Our page:
+# 
+# http://www.timeanddate.com/news/time/north-mexico-dst-change.html
+# 
+
+# From Arthur David Olson (2010-01-20):
+# The page
+# 
+# http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010
+# 
+# includes this text:
+# En los municipios fronterizos de Tijuana y Mexicali en Baja California;
+# Juárez y Ojinaga en Chihuahua; Acuña y Piedras Negras en Coahuila;
+# Anáhuac en Nuevo León; y Nuevo Laredo, Reynosa y Matamoros en
+# Tamaulipas, la aplicación de este horario estacional surtirá efecto
+# desde las dos horas del segundo domingo de marzo y concluirá a las dos
+# horas del primer domingo de noviembre.
+# En los municipios fronterizos que se encuentren ubicados en la franja
+# fronteriza norte en el territorio comprendido entre la línea
+# internacional y la línea paralela ubicada a una distancia de veinte
+# kilómetros, así como la Ciudad de Ensenada, Baja California, hacia el
+# interior del país, la aplicación de este horario estacional surtirá
+# efecto desde las dos horas del segundo domingo de marzo y concluirá a
+# las dos horas del primer domingo de noviembre.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Mexico	1939	only	-	Feb	5	0:00	1:00	D
 Rule	Mexico	1939	only	-	Jun	25	0:00	0	S
@@ -1981,13 +2033,19 @@ Zone America/Merida	-5:58:28 -	LMT	1922 Jan  1  0:01:32
 			-6:00	-	CST	1981 Dec 23
 			-5:00	-	EST	1982 Dec  2
 			-6:00	Mexico	C%sT
-# Coahuila, Durango, Nuevo Leon, Tamaulipas
+# Coahuila, Durango, Nuevo Leon, Tamaulipas (near US border)
+Zone America/Matamoros	-6:40:00 -	LMT	1921 Dec 31 23:20:00
+			-6:00	-	CST	1988
+			-6:00	US	C%sT	1989
+			-6:00	Mexico	C%sT	2010
+			-6:00	US	C%sT
+# Coahuila, Durango, Nuevo Leon, Tamaulipas (away from US border)
 Zone America/Monterrey	-6:41:16 -	LMT	1921 Dec 31 23:18:44
 			-6:00	-	CST	1988
 			-6:00	US	C%sT	1989
 			-6:00	Mexico	C%sT
 # Central Mexico
-Zone America/Mexico_City -6:36:36 -	LMT	1922 Jan  1  0:23:24
+Zone America/Mexico_City -6:36:36 -	LMT	1922 Jan  1 0:23:24
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
 			-7:00	-	MST	1931 May  1 23:00
@@ -1996,7 +2054,19 @@ Zone America/Mexico_City -6:36:36 -	LMT	1922 Jan  1  0:23:24
 			-6:00	Mexico	C%sT	2001 Sep 30 02:00
 			-6:00	-	CST	2002 Feb 20
 			-6:00	Mexico	C%sT
-# Chihuahua
+# Chihuahua (near US border)
+Zone America/Ojinaga	-6:57:40 -	LMT	1922 Jan 1 0:02:20
+			-7:00	-	MST	1927 Jun 10 23:00
+			-6:00	-	CST	1930 Nov 15
+			-7:00	-	MST	1931 May  1 23:00
+			-6:00	-	CST	1931 Oct
+			-7:00	-	MST	1932 Apr  1
+			-6:00	-	CST	1996
+			-6:00	Mexico	C%sT	1998
+			-6:00	-	CST	1998 Apr Sun>=1 3:00
+			-7:00	Mexico	M%sT	2010
+			-7:00	US	M%sT
+# Chihuahua (away from US border)
 Zone America/Chihuahua	-7:04:20 -	LMT	1921 Dec 31 23:55:40
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
@@ -2030,8 +2100,28 @@ Zone America/Mazatlan	-7:05:40 -	LMT	1921 Dec 31 23:54:20
 			-7:00	-	MST	1949 Jan 14
 			-8:00	-	PST	1970
 			-7:00	Mexico	M%sT
-# Baja California
+# Baja California (near US border)
 Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  0:11:56
+			-7:00	-	MST	1924
+			-8:00	-	PST	1927 Jun 10 23:00
+			-7:00	-	MST	1930 Nov 15
+			-8:00	-	PST	1931 Apr  1
+			-8:00	1:00	PDT	1931 Sep 30
+			-8:00	-	PST	1942 Apr 24
+			-8:00	1:00	PWT	1945 Aug 14 23:00u
+			-8:00	1:00	PPT	1945 Nov 12 # Peace
+			-8:00	-	PST	1948 Apr  5
+			-8:00	1:00	PDT	1949 Jan 14
+			-8:00	-	PST	1954
+			-8:00	CA	P%sT	1961
+			-8:00	-	PST	1976
+			-8:00	US	P%sT	1996
+			-8:00	Mexico	P%sT	2001
+			-8:00	US	P%sT	2002 Feb 20
+			-8:00	Mexico	P%sT	2010
+			-8:00	US	P%sT
+# Baja California (away from US border)
+Zone America/Santa_Isabel	-7:39:28 -	LMT	1922 Jan  1  0:20:32
 			-7:00	-	MST	1924
 			-8:00	-	PST	1927 Jun 10 23:00
 			-7:00	-	MST	1930 Nov 15
diff --git a/share/zoneinfo/zone.tab b/share/zoneinfo/zone.tab
index dab18c318d14..c8fb2503db81 100644
--- a/share/zoneinfo/zone.tab
+++ b/share/zoneinfo/zone.tab
@@ -1,5 +1,5 @@
 # 
-# @(#)zone.tab	8.31
+# @(#)zone.tab	8.33
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
@@ -279,11 +279,14 @@ MW	-1547+03500	Africa/Blantyre
 MX	+1924-09909	America/Mexico_City	Central Time - most locations
 MX	+2105-08646	America/Cancun	Central Time - Quintana Roo
 MX	+2058-08937	America/Merida	Central Time - Campeche, Yucatan
-MX	+2540-10019	America/Monterrey	Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas
+MX	+2540-10019	America/Monterrey	Mexican Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas away from US border
+MX	+2550-09730	America/Matamoros	US Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas near US border
 MX	+2313-10625	America/Mazatlan	Mountain Time - S Baja, Nayarit, Sinaloa
-MX	+2838-10605	America/Chihuahua	Mountain Time - Chihuahua
+MX	+2838-10605	America/Chihuahua	Mexican Mountain Time - Chihuahua away from US border
+MX	+2934-10425	America/Ojinaga	US Mountain Time - Chihuahua near US border
 MX	+2904-11058	America/Hermosillo	Mountain Standard Time - Sonora
-MX	+3232-11701	America/Tijuana	Pacific Time
+MX	+3232-11701	America/Tijuana	US Pacific Time - Baja California near US border
+MX	+3018-11452	America/Santa_Isabel	Mexican Pacific Time - Baja California away from US border
 MY	+0310+10142	Asia/Kuala_Lumpur	peninsular Malaysia
 MY	+0133+11020	Asia/Kuching	Sabah & Sarawak
 MZ	-2558+03235	Africa/Maputo