[tz] America/Santa_Isabel

[Paul Eggert]

As near as I can make out, the entry for America/Santa_Isabel is incorrect and 
unnecessary, in that the entire state of Baja California observes US 
daylight-saving rules.  See the map here:

http://www.bajagoodlifenews.com/2010_02_21_archive.html

And in thinking about it, this only makes sense.  If all the major cities of the 
state observe US rules, why would there be an exception for minor towns and 
villages containing only a small fraction of the population?

Proposed patch attached.

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From 6bf2f29c6458f8aa245dd5780235a38e6142bbef Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert at cs.ucla.edu>
Date: Thu, 8 Oct 2015 00:08:06 -0700
Subject: [PATCH] Remove America/Santa_Isabel

It appears to be an incorrect entry, with no need for a zone.
* backward (America/Santa_Isabel): New link.
* northamerica, zone.tab, zone1970.tab (America/Santa_Isabel): Remove.
---
 backward     |  1 +
 northamerica | 26 +++++++-------------------
 zone.tab     |  3 +--
 zone1970.tab |  3 +--
 4 files changed, 10 insertions(+), 23 deletions(-)

diff --git a/backward b/backward
index 8b0fef5..aab237a 100644
--- a/backward
+++ b/backward
@@ -23,6 +23,7 @@ Link	America/Argentina/Mendoza	America/Mendoza
 Link	America/Toronto		America/Montreal
 Link	America/Rio_Branco	America/Porto_Acre
 Link	America/Argentina/Cordoba	America/Rosario
+Link	America/Tijuana		America/Santa_Isabel
 Link	America/Denver		America/Shiprock
 Link	America/Port_of_Spain	America/Virgin
 Link	Pacific/Auckland	Antarctica/South_Pole
diff --git a/northamerica b/northamerica
index 7658a45..626710c 100644
--- a/northamerica
+++ b/northamerica
@@ -2587,25 +2587,6 @@ Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  0:11:56
 			-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
-			-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
 # From Paul Eggert (2006-03-22):
 # Formerly there was an America/Ensenada zone, which differed from
 # America/Tijuana only in that it did not observe DST from 1976
@@ -2618,6 +2599,13 @@ Zone America/Santa_Isabel	-7:39:28 -	LMT	1922 Jan  1  0:20:32
 # other than America/Tijuana for Baja, but it's not clear yet what its
 # name or contents should be.
 #
+# From Paul Eggert (2015-10-08):
+# Formerly there was an America/Santa_Isabel zone, but this appears to
+# have come from a misreading of
+# http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010
+# It has been moved to the 'backward' file.
+#
+#
 # Revillagigedo Is
 # no information
 
diff --git a/zone.tab b/zone.tab
index 935143f..943b31f 100644
--- a/zone.tab
+++ b/zone.tab
@@ -283,8 +283,7 @@ MX	+2313-10625	America/Mazatlan	Mountain Time - S Baja, Nayarit, Sinaloa
 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	US Pacific Time - Baja California near US border
-MX	+3018-11452	America/Santa_Isabel	Mexican Pacific Time - Baja California away from US border
+MX	+3232-11701	America/Tijuana	US Pacific Time - Baja California state
 MX	+2048-10515	America/Bahia_Banderas	Mexican Central Time - Bahia de Banderas
 MY	+0310+10142	Asia/Kuala_Lumpur	peninsular Malaysia
 MY	+0133+11020	Asia/Kuching	Sabah & Sarawak
diff --git a/zone1970.tab b/zone1970.tab
index 1e1b7e7..4b179d8 100644
--- a/zone1970.tab
+++ b/zone1970.tab
@@ -243,8 +243,7 @@ MX	+2313-10625	America/Mazatlan	Mountain Time - S Baja, Nayarit, Sinaloa
 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	US Pacific Time - Baja California near US border
-MX	+3018-11452	America/Santa_Isabel	Mexican Pacific Time - Baja California away from US border
+MX	+3232-11701	America/Tijuana	US Pacific Time - Baja California state
 MX	+2048-10515	America/Bahia_Banderas	Mexican Central Time - Bahía de Banderas
 MY	+0310+10142	Asia/Kuala_Lumpur	peninsular Malaysia
 MY	+0133+11020	Asia/Kuching	Sabah & Sarawak
-- 
2.1.4