Vendor import of tzdata2013h.vendor/tzdata/tzdata2013h

- Libya didn't go back to DST.
- Fix Morocco 2038 issue.
- Brazil/Acre and ?Western Amazonas are chaning timezones.

Obtained from:	ftp://ftp.iana.org/tz/releases/

2 files changed, 78 insertions, 28 deletions

diff --git a/africa b/africa
index 9a5d93bff030..029e5c22467b 100644
--- a/africa
+++ b/africa
@@ -451,6 +451,14 @@ Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
 # (either two days before them or five days after them, so as to fall on
 # lastFri instead of lastSun).
 
+# From Even Scharning (2013-10-25):
+# The scheduled end of DST in Libya on Friday, October 25, 2013 was
+# cancelled yesterday....
+# http://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/
+#
+# From Paul Eggert (2013-10-25):
+# For now, assume they're reverting to the pre-2012 rules of permanent UTC+2.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Libya	1951	only	-	Oct	14	2:00	1:00	S
 Rule	Libya	1952	only	-	Jan	 1	0:00	0	-
@@ -467,8 +475,8 @@ Rule	Libya	1987	1989	-	Apr	 1	0:00	1:00	S
 Rule	Libya	1987	1989	-	Oct	 1	0:00	0	-
 Rule	Libya	1997	only	-	Apr	 4	0:00	1:00	S
 Rule	Libya	1997	only	-	Oct	 4	0:00	0	-
-Rule	Libya	2013	max	-	Mar	lastFri	1:00	1:00	S
-Rule	Libya	2013	max	-	Oct	lastFri	2:00	0	-
+Rule	Libya	2013	only	-	Mar	lastFri	1:00	1:00	S
+Rule	Libya	2013	only	-	Oct	lastFri	2:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Tripoli	0:52:44 -	LMT	1920
 			1:00	Libya	CE%sT	1959
@@ -479,7 +487,8 @@ Zone	Africa/Tripoli	0:52:44 -	LMT	1920
 			2:00	-	EET	1996 Sep 30
 			1:00	Libya	CE%sT	1997 Oct  4
 			2:00	-	EET	2012 Nov 10 2:00
-			1:00	Libya	CE%sT
+			1:00	Libya	CE%sT	2013 Oct 25 2:00
+			2:00	-	EET
 
 # Madagascar
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -684,15 +693,6 @@ Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul	# Mamoutzou
 # http://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search
 # </a>
 
-# From Alex Krivenyshev (2008-05-09):
-# Is Western Sahara (part which administrated by Morocco) going to follow
-# Morocco DST changes?  Any information?  What about other part of
-# Western Sahara - under administration of POLISARIO Front (also named
-# SADR Saharawi Arab Democratic Republic)?
-
-# From Arthur David Olson (2008-05-09):
-# XXX--guess that it is only Morocco for now; guess only 2008 for now.
-
 # From Steffen Thorsen (2008-08-27):
 # Morocco will change the clocks back on the midnight between August 31
 # and September 1. They originally planned to observe DST to near the end
@@ -858,13 +858,23 @@ Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul	# Mamoutzou
 # transitions would be 2013-07-07 and 2013-08-10; see:
 # http://www.maroc.ma/en/news/morocco-suspends-daylight-saving-time-july-7-aug10
 
-# From Paul Eggert (2013-07-03):
+# From Steffen Thorsen (2013-09-28):
+# Morocco extends DST by one month, on very short notice, just 1 day
+# before it was going to end.  There is a new decree (2.13.781) for
+# this, where DST from now on goes from last Sunday of March at 02:00
+# to last Sunday of October at 03:00, similar to EU rules.  Official
+# source (French):
+# http://www.maroc.gov.ma/fr/actualites/lhoraire-dete-gmt1-maintenu-jusquau-27-octobre-2013
+# Another source (specifying the time for start and end in the decree):
+# http://www.lemag.ma/Heure-d-ete-au-Maroc-jusqu-au-27-octobre_a75620.html
+
+# From Paul Eggert (2013-10-03):
 # To estimate what the Moroccan government will do in future years,
-# transition dates for 2014 through 2021 were determined by running
+# transition dates for 2014 through 2038 were determined by running
 # the following program under GNU Emacs 24.3:
 #
 # (let ((islamic-year 1435))
-#   (while (< islamic-year 1444)
+#   (while (< islamic-year 1461)
 #     (let ((a
 #	     (calendar-gregorian-from-absolute
 #	      (calendar-islamic-to-absolute (list 9 1 islamic-year))))
@@ -879,13 +889,18 @@ Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul	# Mamoutzou
 #	  (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
 #     (setq islamic-year (+ 1 islamic-year))))
 #
-# with the results hand-edited for 2020-2022, when the normal spring-forward
-# date falls during the estimated Ramadan.
-#
-# From 2023 through 2038 Ramadan is not predicted to overlap with
-# daylight saving time.  Starting in 2039 there will be overlap again,
-# but 32-bit time_t values roll around in 2038 so for now do not worry
-# about dates after 2038.
+# with spring-forward transitions removed for 2023-2025, when the
+# normal spring-forward date falls during the estimated Ramadan; with
+# all transitions removed for 2026-2035, where the estimated Ramadan
+# falls entirely outside daylight-saving time; and with fall-back
+# transitions removed for 2036-2037, where the normal fall-back
+# date falls during the estimated Ramadan.  Normally, the table would
+# stop after 2037 because 32-bit time_t values roll around early in 2038,
+# but that would imply a prediction of perpetual DST after March 2038
+# due to the year-2037 glitches.  So, this table instead stops after
+# 2038, the first non-glitchy year after the 32-bit rollover.
+# An advantage of stopping after 2038 is that it lets zic guess
+# TZ='WET0WEST,M3.5.0,M10.5.0/3' for time stamps far in the future.
 
 # RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 
@@ -912,12 +927,14 @@ Rule	Morocco	2010	only	-	May	 2	 0:00	1:00	S
 Rule	Morocco	2010	only	-	Aug	 8	 0:00	0	-
 Rule	Morocco	2011	only	-	Apr	 3	 0:00	1:00	S
 Rule	Morocco	2011	only	-	Jul	 31	 0	0	-
-Rule	Morocco	2012	2019	-	Apr	 lastSun 2:00	1:00	S
-Rule	Morocco	2012	max	-	Sep	 lastSun 3:00	0	-
+Rule	Morocco	2012	2013	-	Apr	 lastSun 2:00	1:00	S
+Rule	Morocco	2012	only	-	Sep	 30	 3:00	0	-
 Rule	Morocco	2012	only	-	Jul	 20	 3:00	0	-
 Rule	Morocco	2012	only	-	Aug	 20	 2:00	1:00	S
 Rule	Morocco	2013	only	-	Jul	  7	 3:00	0	-
 Rule	Morocco	2013	only	-	Aug	 10	 2:00	1:00	S
+Rule	Morocco	2013	2035	-	Oct	 lastSun 3:00	0	-
+Rule	Morocco	2014	2022	-	Mar	 lastSun 2:00	1:00	S
 Rule	Morocco	2014	only	-	Jun	 29	 3:00	0	-
 Rule	Morocco	2014	only	-	Jul	 29	 2:00	1:00	S
 Rule	Morocco	2015	only	-	Jun	 18	 3:00	0	-
@@ -930,20 +947,42 @@ Rule	Morocco	2018	only	-	May	 16	 3:00	0	-
 Rule	Morocco	2018	only	-	Jun	 15	 2:00	1:00	S
 Rule	Morocco	2019	only	-	May	  6	 3:00	0	-
 Rule	Morocco	2019	only	-	Jun	  5	 2:00	1:00	S
+Rule	Morocco	2020	only	-	Apr	 24	 3:00	0	-
 Rule	Morocco	2020	only	-	May	 24	 2:00	1:00	S
+Rule	Morocco	2021	only	-	Apr	 13	 3:00	0	-
 Rule	Morocco	2021	only	-	May	 13	 2:00	1:00	S
+Rule	Morocco	2022	only	-	Apr	  3	 3:00	0	-
 Rule	Morocco	2022	only	-	May	  3	 2:00	1:00	S
-Rule	Morocco	2023	max	-	Apr	 lastSun 2:00	1:00	S
+Rule	Morocco	2023	only	-	Apr	 22	 2:00	1:00	S
+Rule	Morocco	2024	only	-	Apr	 10	 2:00	1:00	S
+Rule	Morocco	2025	only	-	Mar	 31	 2:00	1:00	S
+Rule	Morocco	2026	max	-	Mar	 lastSun 2:00	1:00	S
+Rule	Morocco	2036	only	-	Oct	 21	 3:00	0	-
+Rule	Morocco	2037	only	-	Oct	 11	 3:00	0	-
+Rule	Morocco	2038	only	-	Sep	 30	 3:00	0	-
+Rule	Morocco	2038	only	-	Oct	 30	 2:00	1:00	S
+Rule	Morocco	2038	max	-	Oct	 lastSun 3:00	0	-
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
 			 0:00	Morocco	WE%sT	1984 Mar 16
 			 1:00	-	CET	1986
 			 0:00	Morocco	WE%sT
+
 # Western Sahara
+#
+# From Gwillim Law (2013-10-22):
+# A correspondent who is usually well informed about time zone matters
+# ... says that Western Sahara observes daylight saving time, just as
+# Morocco does.
+#
+# From Paul Eggert (2013-10-23):
+# Assume that this has been true since Western Sahara switched to GMT,
+# since most of it was then controlled by Morocco.
+
 Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan
 			-1:00	-	WAT	1976 Apr 14
-			 0:00	-	WET
+			 0:00	Morocco	WE%sT
 
 # Mozambique
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/southamerica b/southamerica
index 3b25ce39c80a..2d77bf7b53a6 100644
--- a/southamerica
+++ b/southamerica
@@ -851,6 +851,15 @@ Zone	America/La_Paz	-4:32:36 -	LMT	1890
 # We will keep this article updated when this is confirmed:
 # http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html
 
+# From Steffen Thorsen (2013-10-17):
+# http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html
+# Senator Jorge Viana announced that Acre will change time zone on November 10.
+# He did not specify the time of the change, nor if western parts of Amazonas
+# will change as well.
+#
+# From Paul Eggert (2013-10-17):
+# For now, assume western Amazonas will change as well.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 # Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
 # Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)
@@ -1139,13 +1148,15 @@ Zone America/Eirunepe	-4:39:28 -	LMT	1914
 			-5:00	-	ACT	1993 Sep 28
 			-5:00	Brazil	AC%sT	1994 Sep 22
 			-5:00	-	ACT	2008 Jun 24 00:00
-			-4:00	-	AMT
+			-4:00	-	AMT	2013 Nov 10
+			-5:00	-	ACT
 #
 # Acre (AC)
 Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 			-5:00	Brazil	AC%sT	1988 Sep 12
 			-5:00	-	ACT	2008 Jun 24 00:00
-			-4:00	-	AMT
+			-4:00	-	AMT	2013 Nov 10
+			-5:00	-	ACT
 
 # Chile