Featured content is also available via:

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

Operating Systems / DragonFlyBSD - Sascha Wildner [online.de] - 25 April 2015 08:23 UTC

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.

###

diff --git a/share/zoneinfo/NEWS b/share/zoneinfo/NEWS
index ce6ac40..c14df78 100644
--- a/share/zoneinfo/NEWS
+++ b/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
diff --git a/share/zoneinfo/africa b/share/zoneinfo/africa
index 1b9bf50..ea0171a 100644
--- a/share/zoneinfo/africa
+++ b/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
diff --git a/share/zoneinfo/antarctica b/share/zoneinfo/antarctica
index ebae994..2af088f 100644
--- a/share/zoneinfo/antarctica
+++ b/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
diff --git a/share/zoneinfo/backward b/share/zoneinfo/backward
index 3ceda88..8b0fef5 100644
--- a/share/zoneinfo/backward
+++ b/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
diff --git a/share/zoneinfo/europe b/share/zoneinfo/europe
index 4109723..c64c41b 100644
--- a/share/zoneinfo/europe
+++ b/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,
diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica
index 77463da..c3af9eb 100644
--- a/share/zoneinfo/northamerica
+++ b/share/zoneinfo/northamerica
@@ -227,9 +227,14 @@ Zone PST8PDT -8:00 US P%sT
# The law doesn't give abbreviations.
#
# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
-# Public law 106-564 (2000-12-23) introduced the abbreviation
-# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
-# See the file "australasia".
+# Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
+# for time in Guam and the Northern Marianas. See the file "australasia".
+#
+# From Paul Eggert (2015-04-17):
+# HST and HDT are standardized abbreviations for Hawaii-Aleutian
+# standard and daylight times. See section 9.47 (p 234) of the
+# U.S. Government Printing Office Style Manual (2008)
+# http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf

# From Arthur David Olson, 2005-08-09
# The following was signed into law on 2005-08-08.
@@ -536,7 +541,7 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18
-11:00 - BST 1969
-11:00 US B%sT 1983 Oct 30 2:00
-10:00 US AH%sT 1983 Nov 30
- -10:00 US HA%sT
+ -10:00 US H%sT
# The following switches don't quite make our 1970 cutoff.
#
# Shanks writes that part of southwest Alaska (e.g. Aniak)
@@ -1331,14 +1336,9 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9

# Quebec

-# From Paul Eggert (2013-08-30):
-# Since 1970 most of Quebec has been like Toronto.
-# However, because earlier versions of the tz database mistakenly relied on data
-# from Shanks & Pottenger saying that Quebec differed from Ontario after 1970,
-# a separate entry was created for most of Quebec. We're loath to lose
-# its pre-1970 info, even though the tz database is normally limited to
-# zones that differ after 1970, so keep this otherwise out-of-scope entry.
-
+# From Paul Eggert (2015-03-24):
+# See America/Toronto for most of Quebec, including Montreal.
+#
# Matthews and Vincent (1998) also write that Quebec east of the -63
# meridian is supposed to observe AST, but residents as far east as
# Natashquan use EST/EDT, and residents east of Natashquan use AST.
@@ -1352,39 +1352,10 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
# For lack of better info, guess this practice began around 1970, contra to
# Shanks & Pottenger who have this region observing AST/ADT.

-# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
-Rule Mont 1917 only - Mar 25 2:00 1:00 D
-Rule Mont 1917 only - Apr 24 0:00 0 S
-Rule Mont 1919 only - Mar 31 2:30 1:00 D
-Rule Mont 1919 only - Oct 25 2:30 0 S
-Rule Mont 1920 only - May 2 2:30 1:00 D
-Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
-Rule Mont 1921 only - May 1 2:00 1:00 D
-Rule Mont 1922 only - Apr 30 2:00 1:00 D
-Rule Mont 1924 only - May 17 2:00 1:00 D
-Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
-Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
-Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
-Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
-Rule Mont 1938 1940 - Apr lastSun 0:00 1:00 D
-Rule Mont 1938 1939 - Sep lastSun 0:00 0 S
-Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
-Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
-Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
-Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
-Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
-
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Blanc-Sablon -3:48:28 - LMT 1884
-4:00 Canada A%sT 1970
-4:00 - AST
-Zone America/Montreal -4:54:16 - LMT 1884
- -5:00 Mont E%sT 1918
- -5:00 Canada E%sT 1919
- -5:00 Mont E%sT 1942 Feb 9 2:00s
- -5:00 Canada E%sT 1946
- -5:00 Mont E%sT 1974
- -5:00 Canada E%sT

# Ontario

@@ -1875,17 +1846,115 @@ Zone America/Creston -7:46:04 - LMT 1884
# Dawson switched to PST in 1973. Inuvik switched to MST in 1979.
# Mathew Englander (1996-10-07) gives the following refs:
# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
-# c. 7 defines Yukon standard time as UTC-9. This is still valid;
+# c. 7 defines Yukon standard time as UTC-9....
# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
+# [http://canlii.ca/t/7vhg]
# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
# * O.I.C. 1980/02 established DST.
# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
-# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go
-# with Englander.
-# From Chris Walton (2006-06-26):
-# Here is a link to the old daylight saving portion of the interpretation
-# act which was last updated in 1987:
-# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf
+
+# From Brian Inglis (2015-04-14):
+#
+# I tried to trace the history of Yukon time and found the following
+# regulations, giving the reference title and URL if found, regulation name,
+# and relevant quote if available. Each regulation specifically revokes its
+# predecessor. The final reference is to the current Interpretation Act
+# authorizing and resulting from these regulatory changes.
+#
+# Only recent regulations were retrievable via Yukon government site search or
+# index, and only some via Canadian legal sources. Other sources used include
+# articles titled "Standard Time and Time Zones in Canada" from JRASC via ADS
+# Abstracts, cited by ADO for 1932 ..., and updated versions from 1958 and
+# 1970 quoted below; each article includes current extracts from provincial
+# and territorial ST and DST regulations at the end, summaries and details of
+# standard times and daylight saving time at many locations across Canada,
+# with time zone maps, tables and calculations for Canadian Sunrise, Sunset,
+# and LMST; they also cover many countries and global locations, with a chart
+# and table showing current Universal Time offsets, and may be useful as
+# another source of information for 1970 and earlier.
+#
+# * Standard Time and Time Zones in Canada; Smith, C.C.; JRASC, Vol. 26,
+# pp.49-77; February 1932; SAO/NASA Astrophysics Data System (ADS)
+# http://adsabs.harvard.edu/abs/1932JRASC..26...49S from p.75:
+# Yukon Interpretation Ordinance
+# Yukon standard time is the local mean time at the one hundred and
+# thirty-fifth meridian.
+#
+# * Standard Time and Time Zones in Canada; Smith, C.C.; Thomson, Malcolm M.;
+# JRASC, Vol. 52, pp.193-223; October 1958; SAO/NASA Astrophysics Data System
+# (ADS) http://adsabs.harvard.edu/abs/1958JRASC..52..193S from pp.220-1:
+# Yukon Interpretation Ordinance, 1955, Chap. 16.
+#
+# (1) Subject to this section, standard time shall be reckoned as nine
+# hours behind Greenwich Time and called Yukon Standard Time.
+#
+# (2) Notwithstanding subsection (1), the Commissioner may make regulations
+# varying the manner of reckoning standard time.
+#
+# * Yukon Territory Commissioner's Order 1966-20 Interpretation Ordinance
+# http://? - no online source found
+#
+# * Standard Time and Time Zones in Canada; Thomson, Malcolm M.; JRASC,
+# Vol. 64, pp.129-162; June 1970; SAO/NASA Astrophysics Data System (ADS)
+# http://adsabs.harvard.edu/abs/1970JRASC..64..129T from p.156: Yukon
+# Territory Commissioner's Order 1967-59 Interpretation Ordinance ...
+#
+# 1. Commissioner's Order 1966-20 dated at Whitehorse in the Yukon
+# Territory on 27th January, 1966, is hereby revoked.
+#
+# 2. Yukon (East) Standard Time as defined by section 36 of the
+# Interpretation Ordinance from and after mid-night on the 28th day of May,
+# 1967 shall be reckoned in the same manner as Pacific Standard Time, that
+# is to say, eight hours behind Greenwich Time in the area of the Yukon
+# Territory lying east of the 138th degree longitude west.
+#
+# 3. In the remainder of the Territory, lying west of the 138th degree
+# longitude west, Yukon (West) Standard Time shall be reckoned as nine
+# hours behind Greenwich Time.
+#
+# * Yukon Standard Time defined as Pacific Standard Time, YCO 1973/214
+# http://www.canlii.org/en/yk/laws/regu/yco-1973-214/latest/yco-1973-214.html
+# C.O. 1973/214 INTERPRETATION ACT ...
+#
+# 1. Effective October 28, 1973 Commissioner's Order 1967/59 is hereby
+# revoked.
+#
+# 2. Yukon Standard Time as defined by section 36 of the Interpretation
+# Act from and after midnight on the twenty-eighth day of October, 1973
+# shall be reckoned in the same manner as Pacific Standard Time, that is
+# to say eight hours behind Greenwich Time.
+#
+# * O.I.C. 1980/02 INTERPRETATION ACT
+# http://? - no online source found
+#
+# * Yukon Daylight Saving Time, YOIC 1987/56
+# http://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html
+# O.I.C. 1987/056 INTERPRETATION ACT ...
+#
+# In every year between
+# (a) two o'clock in the morning in the first Sunday in April, and
+# (b) two o'clock in the morning in the last Sunday in October,
+# Standard Time shall be reckoned as seven hours behind Greenwich Time and
+# called Yukon Daylight Saving Time.
+# ...
+# Dated ... 9th day of March, A.D., 1987.
+#
+# * Yukon Daylight Saving Time 2006, YOIC 2006/127
+# http://www.canlii.org/en/yk/laws/regu/yoic-2006-127/latest/yoic-2006-127.html
+# O.I.C. 2006/127 INTERPRETATION ACT ...
+#
+# 1. In Yukon each year the time for general purposes shall be 7 hours
+# behind Greenwich mean time during the period commencing at two o'clock
+# in the forenoon on the second Sunday of March and ending at two o'clock
+# in the forenoon on the first Sunday of November and shall be called
+# Yukon Daylight Saving Time.
+#
+# 2. Order-in-Council 1987/56 is revoked.
+#
+# 3. This order comes into force January 1, 2007.
+#
+# * Interpretation Act, RSY 2002, c 125
+# http://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html

# From Rives McDow (1999-09-04):
# Nunavut ... moved ... to incorporate the whole territory into one time zone.
@@ -2111,7 +2180,7 @@ Zone America/Inuvik 0 - zzz 1953 # Inuvik founded
-7:00 NT_YK M%sT 1980
-7:00 Canada M%sT
Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
- -9:00 NT_YK Y%sT 1966 Jul 1 2:00
+ -9:00 NT_YK Y%sT 1967 May 28 0:00
-8:00 NT_YK P%sT 1980
-8:00 Canada P%sT
Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
diff --git a/share/zoneinfo/southamerica b/share/zoneinfo/southamerica
index 77e3584..be63a88 100644
--- a/share/zoneinfo/southamerica
+++ b/share/zoneinfo/southamerica
@@ -1098,6 +1098,60 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914

# Chile

+# From Paul Eggert (2015-04-03):
+# Shanks & Pottenger says America/Santiago introduced standard time in
+# 1890 and rounds its UTC offset to 70W40; guess that in practice this
+# was the same offset as in 1916-1919. It also says Pacific/Easter
+# standardized on 109W22 in 1890; assume this didn't change the clocks.
+#
+# Dates for America/Santiago from 1910 to 2004 are primarily from
+# the following source, cited by Oscar van Vlijmen (2006-10-08):
+# [1] Chile Law
+# http://www.webexhibits.org/daylightsaving/chile.html
+# This contains a copy of a this official table:
+# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30)
+# http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm
+# [1] needs several corrections, though.
+#
+# The first set of corrections is from:
+# [2] History of the Official Time of Chile
+# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See:
+# http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html
+# This is an English translation of:
+# Historia de la hora oficial de Chile (retrieved 2012-10-24). See:
+# http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm
+# A fancier Spanish version (requiring mouse-clicking) is at:
+# http://www.horaoficial.cl/historia_hora.html
+# Conflicts between [1] and [2] were resolved as follows:
+#
+# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites
+# Boletín Nº 1, Aviso Nº 1 (1910). Go with [2].
+#
+# - [1] says SMT was -4:42:45, [2] says Chile's official time from
+# 1916 to 1919 was -4:42:46.3, the meridian of Chile's National
+# Astronomical Observatory (OAN), then located in what is now
+# Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46.
+#
+# - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites
+# Boletín Nº 22, Aviso Nº 129/1918 (1918-08-23). Go with [2].
+#
+# - [1] does not give times for transitions; assume they occur
+# at midnight mainland time, the current common practice. However,
+# go with [2]'s specification of 23:00 for the 1947-05-21 transition.
+#
+# Another correction to [1] is from Jesper Nørgaard Welen, who
+# wrote (2006-10-08), "I think that there are some obvious mistakes in
+# the suggested link from Oscar van Vlijmen,... for instance entry 66
+# says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at
+# 1990-09-15 (they should have been 1990-09-15 and 1990-09-16
+# respectively), but anyhow it clears up some doubts too."
+#
+# Data for Pacific/Easter from 1910 through 1967 come from Shanks &
+# Pottenger. After that, for lack of better info assume
+# Pacific/Easter is always two hours behind America/Santiago;
+# this is known to work for DST transitions starting in 2008 and
+# may well be true for earlier transitions.
+
# From Eduardo Krell (1995-10-19):
# The law says to switch to DST at midnight [24:00] on the second SATURDAY
# of October.... The law is the same for March and October.
@@ -1110,78 +1164,35 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
# Because of the same drought, the government decided to end DST later,
# on April 3, (one-time change).

-# From Oscar van Vlijmen (2006-10-08):
-# http://www.horaoficial.cl/cambio.htm
-
-# From Jesper Nørgaard Welen (2006-10-08):
-# I think that there are some obvious mistakes in the suggested link
-# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4
-# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15
-# (they should have been 1990-09-15 and 1990-09-16 respectively), but
-# anyhow it clears up some doubts too.
-
-# From Paul Eggert (2014-08-12):
-# The following data entries for Chile and America/Santiago are from
-# (2006-09-20), transcribed by
-# Jesper Nørgaard Welen. The data entries for Pacific/Easter are from Shanks
-# & Pottenger, except with DST transitions after 1932 cloned from
-# America/Santiago. The pre-1980 Pacific/Easter data entries are dubious,
-# but we have no other source.
-
# From Germán Poo-Caamaño (2008-03-03):
# Due to drought, Chile extends Daylight Time in three weeks. This
# is one-time change (Saturday 3/29 at 24:00 for America/Santiago
# and Saturday 3/29 at 22:00 for Pacific/Easter)
# The Supreme Decree is located at
# http://www.shoa.cl/servicios/supremo316.pdf
-# and the instructions for 2008 are located in:
-# http://www.horaoficial.cl/cambio.htm
-
+#
# From José Miguel Garrido (2008-03-05):
-# ...
-# You could see the announces of the change on
# http://www.shoa.cl/noticias/2008/04hora/hora.htm

# From Angel Chiang (2010-03-04):
# Subject: DST in Chile exceptionally extended to 3 April due to earthquake
# http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098
-# (in Spanish, last paragraph).
#
-# This is breaking news. There should be more information available later.
-
# From Arthur David Olson (2010-03-06):
# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch.

-# From Glenn Eychaner (2011-03-02):
-# It appears that the Chilean government has decided to postpone the
-# change from summer time to winter time again, by three weeks to April
-# 2nd:
-# http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651
-#
-# This is not yet reflected in the official "cambio de hora" site, but
-# probably will be soon:
-# http://www.horaoficial.cl/cambio.htm
-
-# From Arthur David Olson (2011-03-02):
-# The emol.com article mentions a water shortage as the cause of the
-# postponement, which may mean that it's not a permanent change.
-
# From Glenn Eychaner (2011-03-28):
-# The article:
# http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}
-#
# In English:
# Chile's clocks will go back an hour this year on the 7th of May instead
# of this Saturday. They will go forward again the 3rd Saturday in
-# August, not in October as they have since 1968. This is a pilot plan
-# which will be reevaluated in 2012.
+# August, not in October as they have since 1968.

# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23):
# As stated in the website of the Chilean Energy Ministry
# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html
# The Chilean Government has decided to postpone the entrance into winter time
-# (to leave DST) from March 11 2012 to April 28th 2012. The decision has not
-# been yet formalized but it will within the next days.
+# (to leave DST) from March 11 2012 to April 28th 2012....
# Quote from the website communication:
#
# 6. For the year 2012, the dates of entry into winter time will be as follows:
@@ -1214,17 +1225,9 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
# From Paul Eggert (2015-03-03):
# For now, assume that the extension will persist indefinitely.

-# NOTE: ChileAQ rules for Antarctic bases are stored separately in the
-# 'antarctica' file.
-
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
-Rule Chile 1927 1932 - Sep 1 0:00 1:00 S
+Rule Chile 1927 1931 - Sep 1 0:00 1:00 S
Rule Chile 1928 1932 - Apr 1 0:00 0 -
-Rule Chile 1942 only - Jun 1 4:00u 0 -
-Rule Chile 1942 only - Aug 1 5:00u 1:00 S
-Rule Chile 1946 only - Jul 15 4:00u 1:00 S
-Rule Chile 1946 only - Sep 1 3:00u 0:00 -
-Rule Chile 1947 only - Apr 1 4:00u 0 -
Rule Chile 1968 only - Nov 3 4:00u 1:00 S
Rule Chile 1969 only - Mar 30 3:00u 0 -
Rule Chile 1969 only - Nov 23 4:00u 1:00 S
@@ -1235,10 +1238,8 @@ Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 -
Rule Chile 1973 only - Sep 30 4:00u 1:00 S
Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S
Rule Chile 1987 only - Apr 12 3:00u 0 -
-Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 -
-Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S
-Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S
-Rule Chile 1990 only - Mar 18 3:00u 0 -
+Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 -
+Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S
Rule Chile 1990 only - Sep 16 4:00u 1:00 S
Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 -
Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S
@@ -1261,15 +1262,21 @@ Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S
# (1996-09) says 1998-03-08. Ignore these.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Santiago -4:42:46 - LMT 1890
- -4:42:46 - SMT 1910 # Santiago Mean Time
+ -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time
-5:00 - CLT 1916 Jul 1 # Chile Time
- -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time
- -4:00 - CLT 1919 Jul 1 # Chile Time
- -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time
- -5:00 Chile CL%sT 1947 May 22 # Chile Time
+ -4:42:46 - SMT 1918 Sep 10
+ -4:00 - CLT 1919 Jul 1
+ -4:42:46 - SMT 1927 Sep 1
+ -5:00 Chile CL%sT 1932 Sep 1
+ -4:00 - CLT 1942 Jun 1
+ -5:00 - CLT 1942 Aug 1
+ -4:00 - CLT 1946 Jul 15
+ -4:00 1:00 CLST 1946 Sep 1 # central Chile
+ -4:00 - CLT 1947 Apr 1
+ -5:00 - CLT 1947 May 21 23:00
-4:00 Chile CL%sT 2015 Apr 26 3:00u
-3:00 - CLT
-Zone Pacific/Easter -7:17:44 - LMT 1890
+Zone Pacific/Easter -7:17:28 - LMT 1890
-7:17:28 - EMT 1932 Sep # Easter Mean Time
-7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time
-6:00 Chile EAS%sT 2015 Apr 26 3:00u
@@ -1279,6 +1286,25 @@ Zone Pacific/Easter -7:17:44 - LMT 1890
# Other Chilean locations, including Juan Fernández Is, Desventuradas Is,
# and Antarctic bases, are like America/Santiago.

+# Antarctic base using South American rules
+# (See the file 'antarctica' for more.)
+#
+# 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 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1982 May
+ -4:00 Chile CL%sT 2015 Apr 26 3:00u
+ -3:00 - CLT
+
# Colombia

# Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes,

fced046 Sync zoneinfo database with tzdata2015d from ftp://ftp.iana.org/tz/releases
share/zoneinfo/NEWS | 74 +++++++++++++++++++
share/zoneinfo/africa | 67 ++++++-----------
share/zoneinfo/antarctica | 51 +------------
share/zoneinfo/backward | 1 +
share/zoneinfo/europe | 2 +-
share/zoneinfo/northamerica | 167 ++++++++++++++++++++++++++++++-------------
share/zoneinfo/southamerica | 156 +++++++++++++++++++++++-----------------
7 files changed, 309 insertions(+), 209 deletions(-)

Upstream: gitweb.dragonflybsd.org