MFC of 280413,tzdata10:

Release 2015b - 2015-03-19 23:28:11 -0700

  Changes affecting future time stamps

    Mongolia will start observing DST again this year, from the last
    Saturday in March at 02:00 to the last Saturday in September at 00:00.
    (Thanks to Ganbold Tsagaankhuu.)

    Palestine will start DST on March 28, not March 27.  Also,
    correct the fall 2014 transition from September 26 to October 24.
    Adjust future predictions accordingly.  (Thanks to Steffen Thorsen.)

  Changes affecting past time stamps

    The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a
    regression.  (Thanks to Stuart Bishop for reporting the problem.)

    Some more zones have been turned into links, when they differed
    from existing zones only for older time stamps.  As usual,
    these changes affect UTC offsets in pre-1970 time stamps only.
    Their old contents have been moved to the 'backzone' file.
    The affected zones are: America/Antigua, America/Cayman,
    Pacific/Midway, and Pacific/Saipan.

  Changes affecting time zone abbreviations

    Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD".
    (Thanks to Hank W.)

1 files changed, 4 insertions, 23 deletions

diff --git a/contrib/tzdata/australasia b/contrib/tzdata/australasia
index 911e681..3e2c0b3 100644
--- a/contrib/tzdata/australasia
+++ b/contrib/tzdata/australasia
@@ -373,6 +373,7 @@ Zone	Pacific/Guam	-14:21:00 -	LMT	1844 Dec 31
 			 9:39:00 -	LMT	1901        # Agana
 			10:00	-	GST	2000 Dec 23 # Guam
 			10:00	-	ChST	# Chamorro Standard Time
+Link Pacific/Guam Pacific/Saipan # N Mariana Is
 
 # Kiribati
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -388,12 +389,7 @@ Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
 			 14:00	-	LINT
 
 # N Mariana Is
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Saipan	-14:17:00 -	LMT	1844 Dec 31
-			 9:43:00 -	LMT	1901
-			 9:00	-	MPT	1969 Oct    # N Mariana Is Time
-			10:00	-	MPT	2000 Dec 23
-			10:00	-	ChST	# Chamorro Standard Time
+# See Pacific/Guam.
 
 # Marshall Is
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -563,6 +559,7 @@ Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1879 Jul  5
 			-11:00	-	NST	1967 Apr    # N=Nome
 			-11:00	-	BST	1983 Nov 30 # B=Bering
 			-11:00	-	SST	            # S=Samoa
+Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
 
 # Samoa (formerly and also known as Western Samoa)
 
@@ -744,23 +741,7 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 # uninhabited
 
 # Midway
-#
-# From Mark Brader (2005-01-23):
-# [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies,
-# published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3]
-# reproduced a Pan American Airways timetable from 1936, for their weekly
-# "Orient Express" flights between San Francisco and Manila, and connecting
-# flights to Chicago and the US East Coast.  As it uses some time zone
-# designations that I've never seen before:....
-# Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I.   H.L.T. Ar. 5:30P Sun.
-#  "   3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A  "
-#
-Zone Pacific/Midway	-11:49:28 -	LMT	1901
-			-11:00	-	NST	1956 Jun  3
-			-11:00	1:00	NDT	1956 Sep  2
-			-11:00	-	NST	1967 Apr    # N=Nome
-			-11:00	-	BST	1983 Nov 30 # B=Bering
-			-11:00	-	SST	            # S=Samoa
+# See Pacific/Pago_Pago.
 
 # Palmyra
 # uninhabited since World War II; was probably like Pacific/Kiritimati