Sync zoneinfo database with tzdata2015d from ftp://ftp.iana.org/tz/re…

…leases

Changes affecting future time stamps

* Egypt's spring-forward transition is at 24:00 on April's last Thursday,
    not 00:00 on April's last Friday.  2015's transition will therefore
    be on Thursday, April 30 at 24:00, not Friday, April 24 at 00:00.
    Similar fixes apply to 2026, 2037, 2043, etc.
    (Thanks to Steffen Thorsen.)

* Egypt will not observe DST in 2015 and will consider canceling it
    permanently.  For now, assume no DST indefinitely.
    (Thanks to Ahmed Nazmy and Tim Parenti.)

Changes affecting past time stamps

* The following changes affect some pre-1991 Chile-related time stamps
    in America/Santiago, Antarctica/Palmer, and Pacific/Easter.

      The 1910 transition was January 10, not January 1.

      The 1918 transition was September 10, not September 1.

      The UTC-4 time observed from 1932 to 1942 is now considered to be
      standard time, not year-round DST.

      Santiago observed DST (UTC-3) from 1946-07-15 through 1946-08-31,
      then reverted to standard time, then switched its time zone to
      UTC-5 on 1947-04-01.

      Assume transitions before 1968 were at 00:00, since we have no data
      saying otherwise.

      The spring 1988 transition was 1988-10-09, not 1988-10-02.
      The fall 1990 transition was 1990-03-11, not 1990-03-18.

      Assume no UTC offset change for Pacific/Easter on 1890-01-01,
      and omit all transitions on Pacific/Easter from 1942 through 1946
      since we have no data suggesting that they existed.

    One more zone has been turned into a link, as it differed
    from an existing zone only for older time stamps.  As usual,
    this change affects UTC offsets in pre-1970 time stamps only.
    The affected zone is America/Montreal.

* America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not
    1966-07-01.  Also, Yukon's time zone history is documented better.
    (Thanks to Brian Inglis and Dennis Ferguson.)

Change affecting past and future time zone abbreviations

* The abbreviations for Hawaii-Aleutian standard and daylight times
    have been changed from HAST/HADT to HST/HDT, as per US Government
    Printing Office style.  This affects only America/Adak since 1983,
    as America/Honolulu was already using the new style.

share/zoneinfo/NEWS

@@ -1,5 +1,79 @@
 News for the tz database
 
+Release 2015d - 2015-04-24 08:09:46 -0700
+
+  Changes affecting future time stamps
+
+    Egypt will not observe DST in 2015 and will consider canceling it
+    permanently.  For now, assume no DST indefinitely.
+    (Thanks to Ahmed Nazmy and Tim Parenti.)
+
+  Changes affecting past time stamps
+
+    America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not
+    1966-07-01.  Also, Yukon's time zone history is documented better.
+    (Thanks to Brian Inglis and Dennis Ferguson.)
+
+  Change affecting past and future time zone abbreviations
+
+    The abbreviations for Hawaii-Aleutian standard and daylight times
+    have been changed from HAST/HADT to HST/HDT, as per US Government
+    Printing Office style.  This affects only America/Adak since 1983,
+    as America/Honolulu was already using the new style.
+
+  Changes affecting code
+
+   zic has some minor performance improvements.
+
+
+Release 2015c - 2015-04-11 08:55:55 -0700
+
+  Changes affecting future time stamps
+
+    Egypt's spring-forward transition is at 24:00 on April's last Thursday,
+    not 00:00 on April's last Friday.  2015's transition will therefore be on
+    Thursday, April 30 at 24:00, not Friday, April 24 at 00:00.  Similar fixes
+    apply to 2026, 2037, 2043, etc.  (Thanks to Steffen Thorsen.)
+
+  Changes affecting past time stamps
+
+    The following changes affect some pre-1991 Chile-related time stamps
+    in America/Santiago, Antarctica/Palmer, and Pacific/Easter.
+
+      The 1910 transition was January 10, not January 1.
+
+      The 1918 transition was September 10, not September 1.
+
+      The UTC-4 time observed from 1932 to 1942 is now considered to be
+      standard time, not year-round DST.
+
+      Santiago observed DST (UTC-3) from 1946-07-15 through 1946-08-31,
+      then reverted to standard time, then switched its time zone to
+      UTC-5 on 1947-04-01.
+
+      Assume transitions before 1968 were at 00:00, since we have no data
+      saying otherwise.
+
+      The spring 1988 transition was 1988-10-09, not 1988-10-02.
+      The fall 1990 transition was 1990-03-11, not 1990-03-18.
+
+      Assume no UTC offset change for Pacific/Easter on 1890-01-01,
+      and omit all transitions on Pacific/Easter from 1942 through 1946
+      since we have no data suggesting that they existed.
+
+    One more zone has been turned into a link, as it differed
+    from an existing zone only for older time stamps.  As usual,
+    this change affects UTC offsets in pre-1970 time stamps only.
+    The zone's old contents have been moved to the 'backzone' file.
+    The affected zone is America/Montreal.
+
+  Changes affecting commentary
+
+    Mention the TZUpdater tool.
+
+    Mention "The Time Now".  (Thanks to Brandon Ramsey.)
+
+
 Release 2015b - 2015-03-19 23:28:11 -0700
 
   Changes affecting future time stamps

share/zoneinfo/africa

@@ -319,35 +319,29 @@ Rule	Egypt	2007	only	-	Sep	Thu>=1	24:00	0	-
 # above) says DST had no affect on electricity consumption.  There is
 # no information about when DST will end this fall.  See:
 # http://abcnews.go.com/International/wireStory/el-sissi-pushes-egyptians-line-23614833
+
+# From Steffen Thorsen (2015-04-08):
+# Egypt will start DST on midnight after Thursday, April 30, 2015.
+# This is based on a law (no 35) from May 15, 2014 saying it starts the last
+# Thursday of April....  Clocks will still be turned back for Ramadan, but
+# dates not yet announced....
+# http://almogaz.com/news/weird-news/2015/04/05/1947105 ...
+# http://www.timeanddate.com/news/time/egypt-starts-dst-2015.html
+
+# From Ahmed Nazmy (2015-04-20):
+# Egypt's ministers cabinet just announced ... that it will cancel DST at
+# least for 2015.
 #
-# For now, guess that later spring and fall transitions will use
-# 2010's rules, and guess that Egypt will switch to standard time at
-# 24:00 the last Thursday before Ramadan, and back to DST at 00:00 the
-# first Friday after Ramadan.  To implement this,
-# transition dates for 2015 through 2037 were determined by running
-# the following program under GNU Emacs 24.3, with the results integrated
-# by hand into the table below.  Ramadan again intrudes on the guessed
-# DST starting in 2038, but that's beyond our somewhat-arbitrary cutoff.
-# (let ((islamic-year 1436))
-#   (while (< islamic-year 1460)
-#     (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
-#           (b (calendar-islamic-to-absolute (list 10 1 islamic-year)))
-#           (friday 5))
-#       (while (/= friday (mod a 7))
-#         (setq a (1- a)))
-#       (while (/= friday (mod b 7))
-#         (setq b (1+ b)))
-#       (setq a (1- a))
-#       (setq b (1- b))
-#       (setq a (calendar-gregorian-from-absolute a))
-#       (setq b (calendar-gregorian-from-absolute b))
-#       (insert
-#        (format
-#         (concat "Rule\tEgypt\t%d\tonly\t-\t%s\t%2d\t24:00\t0\t-\n"
-#                 "Rule\tEgypt\t%d\tonly\t-\t%s\t%2d\t24:00\t1:00\tS\n")
-#         (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
-#         (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
-#     (setq islamic-year (+ 1 islamic-year))))
+# From Tim Parenti (2015-04-20):
+# http://english.ahram.org.eg/WriterArticles/NewsContentP/1/128195/Egypt/No-daylight-saving-this-summer-Egypts-prime-minist.aspx
+# "Egypt's cabinet agreed on Monday not to switch clocks for daylight saving
+# time this summer, and carry out studies on the possibility of canceling the
+# practice altogether in future years."
+#
+# From Paul Eggert (2015-04-20):
+# For now, assume DST will be canceled.  Any resumption would likely
+# use different rules anyway.
+
 Rule	Egypt	2008	only	-	Aug	lastThu	24:00	0	-
 Rule	Egypt	2009	only	-	Aug	20	24:00	0	-
 Rule	Egypt	2010	only	-	Aug	10	24:00	0	-
@@ -356,22 +350,7 @@ Rule	Egypt	2010	only	-	Sep	lastThu	24:00	0	-
 Rule	Egypt	2014	only	-	May	15	24:00	1:00	S
 Rule	Egypt	2014	only	-	Jun	26	24:00	0	-
 Rule	Egypt	2014	only	-	Jul	31	24:00	1:00	S
-Rule	Egypt	2014	max	-	Sep	lastThu	24:00	0	-
-Rule	Egypt	2015	2019	-	Apr	lastFri	 0:00s	1:00	S
-Rule	Egypt	2015	only	-	Jun	11	24:00	0	-
-Rule	Egypt	2015	only	-	Jul	23	24:00	1:00	S
-Rule	Egypt	2016	only	-	Jun	 2	24:00	0	-
-Rule	Egypt	2016	only	-	Jul	 7	24:00	1:00	S
-Rule	Egypt	2017	only	-	May	25	24:00	0	-
-Rule	Egypt	2017	only	-	Jun	29	24:00	1:00	S
-Rule	Egypt	2018	only	-	May	10	24:00	0	-
-Rule	Egypt	2018	only	-	Jun	14	24:00	1:00	S
-Rule	Egypt	2019	only	-	May	 2	24:00	0	-
-Rule	Egypt	2019	only	-	Jun	 6	24:00	1:00	S
-Rule	Egypt	2020	only	-	May	28	24:00	1:00	S
-Rule	Egypt	2021	only	-	May	13	24:00	1:00	S
-Rule	Egypt	2022	only	-	May	 5	24:00	1:00	S
-Rule	Egypt	2023	max	-	Apr	lastFri	 0:00s	1:00	S
+Rule	Egypt	2014	only	-	Sep	lastThu	24:00	0	-
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct

share/zoneinfo/antarctica

@@ -15,41 +15,6 @@
 # I made up all time zone abbreviations mentioned here; corrections welcome!
 # FORMAT is 'zzz' and GMTOFF is 0 for locations while uninhabited.
 
-# These rules are stolen from the 'southamerica' file.
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	ArgAQ	1964	1966	-	Mar	 1	0:00	0	-
-Rule	ArgAQ	1964	1966	-	Oct	15	0:00	1:00	S
-Rule	ArgAQ	1967	only	-	Apr	 2	0:00	0	-
-Rule	ArgAQ	1967	1968	-	Oct	Sun>=1	0:00	1:00	S
-Rule	ArgAQ	1968	1969	-	Apr	Sun>=1	0:00	0	-
-Rule	ArgAQ	1974	only	-	Jan	23	0:00	1:00	S
-Rule	ArgAQ	1974	only	-	May	 1	0:00	0	-
-Rule	ChileAQ	1972	1986	-	Mar	Sun>=9	3:00u	0	-
-Rule	ChileAQ	1974	1987	-	Oct	Sun>=9	4:00u	1:00	S
-Rule	ChileAQ	1987	only	-	Apr	12	3:00u	0	-
-Rule	ChileAQ	1988	1989	-	Mar	Sun>=9	3:00u	0	-
-Rule	ChileAQ	1988	only	-	Oct	Sun>=1	4:00u	1:00	S
-Rule	ChileAQ	1989	only	-	Oct	Sun>=9	4:00u	1:00	S
-Rule	ChileAQ	1990	only	-	Mar	18	3:00u	0	-
-Rule	ChileAQ	1990	only	-	Sep	16	4:00u	1:00	S
-Rule	ChileAQ	1991	1996	-	Mar	Sun>=9	3:00u	0	-
-Rule	ChileAQ	1991	1997	-	Oct	Sun>=9	4:00u	1:00	S
-Rule	ChileAQ	1997	only	-	Mar	30	3:00u	0	-
-Rule	ChileAQ	1998	only	-	Mar	Sun>=9	3:00u	0	-
-Rule	ChileAQ	1998	only	-	Sep	27	4:00u	1:00	S
-Rule	ChileAQ	1999	only	-	Apr	 4	3:00u	0	-
-Rule	ChileAQ	1999	2010	-	Oct	Sun>=9	4:00u	1:00	S
-Rule	ChileAQ	2000	2007	-	Mar	Sun>=9	3:00u	0	-
-# N.B.: the end of March 29 in Chile is March 30 in Universal time,
-# which is used below in specifying the transition.
-Rule	ChileAQ	2008	only	-	Mar	30	3:00u	0	-
-Rule	ChileAQ	2009	only	-	Mar	Sun>=9	3:00u	0	-
-Rule	ChileAQ	2010	only	-	Apr	Sun>=1	3:00u	0	-
-Rule	ChileAQ	2011	only	-	May	Sun>=2	3:00u	0	-
-Rule	ChileAQ	2011	only	-	Aug	Sun>=16	4:00u	1:00	S
-Rule	ChileAQ	2012	2015	-	Apr	Sun>=23	3:00u	0	-
-Rule	ChileAQ	2012	2014	-	Sep	Sun>=2	4:00u	1:00	S
-
 # Argentina - year-round bases
 # Belgrano II, Confin Coast, -770227-0343737, since 1972-02-05
 # Carlini, Potter Cove, King George Island, -6414-0602320, since 1982-01
@@ -344,21 +309,7 @@ Zone Antarctica/Rothera	0	-	zzz	1976 Dec  1
 # USA - year-round bases
 #
 # Palmer, Anvers Island, since 1965 (moved 2 miles in 1968)
-#
-# From Ethan Dicks (1996-10-06):
-# It keeps the same time as Punta Arenas, Chile, because, just like us
-# and the South Pole, that's the other end of their supply line....
-# I verified with someone who was there that since 1980,
-# Palmer has followed Chile.  Prior to that, before the Falklands War,
-# Palmer used to be supplied from Argentina.
-#
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Antarctica/Palmer	0	-	zzz	1965
-			-4:00	ArgAQ	AR%sT	1969 Oct  5
-			-3:00	ArgAQ	AR%sT	1982 May
-			-4:00	ChileAQ	CL%sT	2015 Apr 26 3:00u
-			-3:00	-	CLT
-#
+# See 'southamerica' for Antarctica/Palmer, since it uses South American DST.
 #
 # McMurdo Station, Ross Island, since 1955-12
 # Amundsen-Scott South Pole Station, continuously occupied since 1956-11-20

share/zoneinfo/backward

@@ -20,6 +20,7 @@ Link	America/Argentina/Jujuy	America/Jujuy
 Link	America/Indiana/Knox	America/Knox_IN
 Link	America/Kentucky/Louisville	America/Louisville
 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/Denver		America/Shiprock

share/zoneinfo/europe

@@ -76,7 +76,7 @@
 #        1:00:14    SET           Swedish (1879-1899)*
 #        2:00       EET EEST      Eastern Europe
 #        3:00       FET           Further-eastern Europe (2011-2014)*
-#        3:00       MSK MSD  MSM* Moscow
+#        3:00       MSK MSD  MSM* Minsk, Moscow
 
 # From Peter Ilieve (1994-12-04),
 # The original six [EU members]: Belgium, France, (West) Germany, Italy,