Skip to content

Commit

Permalink
MFV of 233442, tzdata2012a
Browse files Browse the repository at this point in the history
- Updates to various locations in Antarctica.
- Armenia will abolish DST this year.
- Not only Samoa has moved to UTC+14, also Fakaofo did.
- There will be a leap second in 30 June 2012.
- Historical updates of 1918 to Canada, Winn, Regina, Edm, Vanc, Creston.
- Chili stays on DST until 28 April 2012
- The Falkland islands will stay on DST this year.
  • Loading branch information
Edwin Groothuis authored and Edwin Groothuis committed Mar 25, 2012
2 parents 75a5838 + 3d29106 commit aad8a35
Show file tree
Hide file tree
Showing 8 changed files with 235 additions and 45 deletions.
21 changes: 18 additions & 3 deletions contrib/tzdata/antarctica
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# <pre>
# @(#)antarctica 8.9
# @(#)antarctica 8.10
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.

Expand Down Expand Up @@ -42,8 +42,19 @@ 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 max - Oct Sun>=9 4:00u 1:00 S
Rule ChileAQ 2000 max - Mar Sun>=9 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 only - Apr Sun>=23 3:00u 0 -
Rule ChileAQ 2012 only - Sep Sun>=2 4:00u 1:00 S
Rule ChileAQ 2013 max - Mar Sun>=9 3:00u 0 -
Rule ChileAQ 2013 max - Oct Sun>=9 4:00u 1:00 S

# These rules are stolen from the `australasia' file.
Rule AusAQ 1917 only - Jan 1 0:01 1:00 -
Expand Down Expand Up @@ -142,12 +153,16 @@ Zone Antarctica/Casey 0 - zzz 1969
# Western (Aus) Standard Time
11:00 - CAST 2010 Mar 5 2:00
# Casey Time
8:00 - WST 2011 Oct 28 2:00
11:00 - CAST 2012 Feb 21 17:00u
8:00 - WST
Zone Antarctica/Davis 0 - zzz 1957 Jan 13
7:00 - DAVT 1964 Nov # Davis Time
0 - zzz 1969 Feb
7:00 - DAVT 2009 Oct 18 2:00
5:00 - DAVT 2010 Mar 10 20:00u
7:00 - DAVT 2011 Oct 28 2:00
5:00 - DAVT 2012 Feb 21 20:00u
7:00 - DAVT
Zone Antarctica/Mawson 0 - zzz 1954 Feb 13
6:00 - MAWT 2009 Oct 18 2:00
Expand Down
24 changes: 18 additions & 6 deletions contrib/tzdata/asia
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# @(#)asia 8.69
# @(#)asia 8.70
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.

Expand Down Expand Up @@ -77,10 +77,6 @@ Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -

# From Arthur David Olson (2011-06-15):
# While Russia abandoned DST in 2011, Armenia may choose to
# follow Russia's "old" rules.

# Afghanistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kabul 4:36:48 - LMT 1890
Expand All @@ -97,14 +93,30 @@ Zone Asia/Kabul 4:36:48 - LMT 1890
# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
# but started switching at 3:00s in 1998.

# From Arthur David Olson (2011-06-15):
# While Russia abandoned DST in 2011, Armenia may choose to
# follow Russia's "old" rules.

# From Alexander Krivenyshev (2012-02-10):
# According to News Armenia, on Feb 9, 2012,
# http://newsarmenia.ru/society/20120209/42609695.html
#
# The Armenia National Assembly adopted final reading of Amendments to the
# Law "On procedure of calculation time on the territory of the Republic of
# Armenia" according to which Armenia [is] abolishing Daylight Saving Time.
# or
# (brief)
# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
3:00 - YERT 1957 Mar # Yerevan Time
4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
3:00 1:00 YERST 1991 Sep 23 # independence
3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
4:00 - AMT 1997
4:00 RussiaAsia AM%sT
4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s
4:00 - AMT

# Azerbaijan
# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
Expand Down
28 changes: 26 additions & 2 deletions contrib/tzdata/australasia
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# <pre>
# @(#)australasia 8.29
# @(#)australasia 8.30
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.

Expand Down Expand Up @@ -616,6 +616,11 @@ Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5
# Dateline Change skip Friday 30th Dec 2011
# Thursday 29th December 2011 23:59:59 Hours
# Saturday 31st December 2011 00:00:00 Hours
#
# Clarification by Tim Parenti (2012-01-03):
# Although Samoa has used Daylight Saving Time in the 2010-2011 and 2011-2012
# seasons, there is not yet any indication that this trend will continue on
# a regular basis. For now, we have explicitly listed the transitions below.
Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5
-11:26:56 - LMT 1911
-11:30 - SAMT 1950 # Samoa Time
Expand All @@ -633,9 +638,28 @@ Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara
11:00 - SBT # Solomon Is Time

# Tokelau Is
#
# From Gwillim Law (2011-12-29)
# A correspondent informed me that Tokelau, like Samoa, will be skipping
# December 31 this year, thereby changing its time zone from UTC-10 to
# UTC+14. When I tried to verify this statement, I found a confirming
# article in Time magazine online
# <a href="http://www.time.com/time/world/article/0,8599,2103243,00.html">
# (http://www.time.com/time/world/article/0,8599,2103243,00.html).
# </a>
#
# From Jonathan Leffler (2011-12-29)
# Information from the BBC to the same effect:
# <a href="http://www.bbc.co.uk/news/world-asia-16351377">
# http://www.bbc.co.uk/news/world-asia-16351377
# </a>
#
# Patch supplied by Tim Parenti (2011-12-29)

# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Fakaofo -11:24:56 - LMT 1901
-10:00 - TKT # Tokelau Time
-10:00 - TKT 2011 Dec 30 # Tokelau Time
14:00 - TKT

# Tonga
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Expand Down
14 changes: 10 additions & 4 deletions contrib/tzdata/europe
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# <pre>
# @(#)europe 8.40
# @(#)europe 8.41
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.

Expand Down Expand Up @@ -211,9 +211,15 @@
# the history of summer time legislation in the United Kingdom.
# Since 1998 Joseph S. Myers has been updating
# and extending this list, which can be found in
# <a href="http://student.cusu.cam.ac.uk/~jsm28/british-time/">
# http://student.cusu.cam.ac.uk/~jsm28/british-time/
# <a href="http://www.polyomino.org.uk/british-time/">
# History of legal time in Britain
# </a>
# Rob Crowther (2012-01-04) reports that that URL no longer
# exists, and the article can now be found at:
# <a href="http://www.polyomino.org.uk/british-time/">
# http://www.polyomino.org.uk/british-time/
# </a>

# From Joseph S. Myers (1998-01-06):
#
Expand Down Expand Up @@ -1151,10 +1157,10 @@ Rule France 1940 only - Feb 25 2:00 1:00 S
# write that they were used in Monaco and in many French locations.
# Le Corre writes that the upper limit of the free zone was Arneguy, Orthez,
# Mont-de-Marsan, Bazas, Langon, Lamotte-Montravel, Marouil, La
# Rochefoucault, Champagne-Mouton, La Roche-Posay, La Haye-Decartes,
# Rochefoucault, Champagne-Mouton, La Roche-Posay, La Haye-Descartes,
# Loches, Montrichard, Vierzon, Bourges, Moulins, Digoin,
# Paray-le-Monial, Montceau-les-Mines, Chalons-sur-Saone, Arbois,
# Dole, Morez, St-Claude, and Collognes (Haute-Savioe).
# Dole, Morez, St-Claude, and Collonges (Haute-Savoie).
Rule France 1941 only - May 5 0:00 2:00 M # Midsummer
# Shanks & Pottenger say this transition occurred at Oct 6 1:00,
# but go with Denis Excoffier (1997-12-12),
Expand Down
42 changes: 28 additions & 14 deletions contrib/tzdata/leapseconds
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# <pre>
# @(#)leapseconds 8.11
# @(#)leapseconds 8.13
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.

Expand Down Expand Up @@ -48,40 +48,54 @@ Leap 1997 Jun 30 23:59:60 + S
Leap 1998 Dec 31 23:59:60 + S
Leap 2005 Dec 31 23:59:60 + S
Leap 2008 Dec 31 23:59:60 + S
Leap 2012 Jun 30 23:59:60 + S

# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
#
# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE
#
#
# SERVICE DE LA ROTATION TERRESTRE
# OBSERVATOIRE DE PARIS
# 61, Av. de l'Observatoire 75014 PARIS (France)
# Tel. : 33 (0) 1 40 51 22 29
# Tel. : 33 (0) 1 40 51 22 26
# FAX : 33 (0) 1 40 51 22 91
# Internet : [email protected]
# e-mail : (E-Mail Removed)
# http://hpiers.obspm.fr/eop-pc
#
# Paris, 5 January 2012
#
# Paris, 2 February 2011
#
# Bulletin C 41
# Bulletin C 43
#
# To authorities responsible
# for the measurement and
# distribution of time
#
# INFORMATION ON UTC - TAI
#
# NO positive leap second will be introduced at the end of June 2011.
# The difference between Coordinated Universal Time UTC and the
# International Atomic Time TAI is :
# UTC TIME STEP
# on the 1st of July 2012
#
#
# from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s
# A positive leap second will be introduced at the end of June 2012.
# The sequence of dates of the UTC second markers will be:
#
# 2012 June 30, 23h 59m 59s
# 2012 June 30, 23h 59m 60s
# 2012 July 1, 0h 0m 0s
#
# The difference between UTC and the International Atomic Time TAI is:
#
# from 2009 January 1, 0h UTC, to 2012 July 1 0h UTC : UTC-TAI = - 34s
# from 2012 July 1, 0h UTC, until further notice : UTC-TAI = - 35s
#
# Leap seconds can be introduced in UTC at the end of the months of December
# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
# six months, either to announce a time step in UTC, or to confirm that there
# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
# six months, either to announce a time step in UTC or to confirm that there
# will be no time step at the next possible date.
#
#
# Daniel GAMBIS
# Head
# Earth Orientation Center of the IERS
# Head
# Earth Orientation Center of IERS
# Observatoire de Paris, France
93 changes: 86 additions & 7 deletions contrib/tzdata/northamerica
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# <pre>
# @(#)northamerica 8.51
# @(#)northamerica 8.52
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.

Expand Down Expand Up @@ -1120,9 +1120,26 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
# For now, assume all of DST-observing Canada will fall into line with the
# new US DST rules,

# From Chris Walton (2011-12-01)
# In the first of Tammy Hardwick's articles
# <a href="http://www.ilovecreston.com/?p=articles&t=spec&ar=260">
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
# </a>
# she quotes the Friday November 1/1918 edition of the Creston Review.
# The quote includes these two statements:
# 'Sunday the CPR went back to the old system of time...'
# '... The daylight saving scheme was dropped all over Canada at the same time,'
# These statements refer to a transition from daylight time to standard time
# that occurred nationally on Sunday October 27/1918. This transition was
# also documented in the Saturday October 26/1918 edition of the Toronto Star.

# In light of that evidence, we alter the date from the earlier believed
# Oct 31, to Oct 27, 1918 (and Sunday is a more likely transition day
# than Thursday) in all Canadian rulesets.

# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Canada 1918 only - Apr 14 2:00 1:00 D
Rule Canada 1918 only - Oct 31 2:00 0 S
Rule Canada 1918 only - Oct 27 2:00 0 S
Rule Canada 1942 only - Feb 9 2:00 1:00 W # War
Rule Canada 1945 only - Aug 14 23:00u 1:00 P # Peace
Rule Canada 1945 only - Sep 30 2:00 0 S
Expand Down Expand Up @@ -1645,7 +1662,7 @@ Zone America/Atikokan -6:06:28 - LMT 1895
Rule Winn 1916 only - Apr 23 0:00 1:00 D
Rule Winn 1916 only - Sep 17 0:00 0 S
Rule Winn 1918 only - Apr 14 2:00 1:00 D
Rule Winn 1918 only - Oct 31 2:00 0 S
Rule Winn 1918 only - Oct 27 2:00 0 S
Rule Winn 1937 only - May 16 2:00 1:00 D
Rule Winn 1937 only - Sep 26 2:00 0 S
Rule Winn 1942 only - Feb 9 2:00 1:00 W # War
Expand Down Expand Up @@ -1728,7 +1745,7 @@ Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16

# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Regina 1918 only - Apr 14 2:00 1:00 D
Rule Regina 1918 only - Oct 31 2:00 0 S
Rule Regina 1918 only - Oct 27 2:00 0 S
Rule Regina 1930 1934 - May Sun>=1 0:00 1:00 D
Rule Regina 1930 1934 - Oct Sun>=1 0:00 0 S
Rule Regina 1937 1941 - Apr Sun>=8 0:00 1:00 D
Expand Down Expand Up @@ -1765,7 +1782,7 @@ Zone America/Swift_Current -7:11:20 - LMT 1905 Sep

# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Edm 1918 1919 - Apr Sun>=8 2:00 1:00 D
Rule Edm 1918 only - Oct 31 2:00 0 S
Rule Edm 1918 only - Oct 27 2:00 0 S
Rule Edm 1919 only - May 27 2:00 0 S
Rule Edm 1920 1923 - Apr lastSun 2:00 1:00 D
Rule Edm 1920 only - Oct lastSun 2:00 0 S
Expand Down Expand Up @@ -1795,9 +1812,68 @@ Zone America/Edmonton -7:33:52 - LMT 1906 Sep
# Dawson Creek uses MST. Much of east BC is like Edmonton.
# Matthews and Vincent (1998) write that Creston is like Dawson Creek.

# It seems though that (re: Creston) is not entirely correct:

# From Chris Walton (2011-12-01):
# There are two areas within the Canadian province of British Columbia
# that do not currently observe daylight saving:
# a) The Creston Valley (includes the town of Creston and surrounding area)
# b) The eastern half of the Peace River Regional District
# (includes the cities of Dawson Creek and Fort St. John)

# Earlier this year I stumbled across a detailed article about the time
# keeping history of Creston; it was written by Tammy Hardwick who is the
# manager of the Creston & District Museum. The article was written in May 2009.
# <a href="http://www.ilovecreston.com/?p=articles&t=spec&ar=260">
# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
# </a>
# According to the article, Creston has not changed its clocks since June 1918.
# i.e. Creston has been stuck on UTC-7 for 93 years.
# Dawson Creek, on the other hand, changed its clocks as recently as April 1972.

# Unfortunately the exact date for the time change in June 1918 remains
# unknown and will be difficult to ascertain. I e-mailed Tammy a few months
# ago to ask if Sunday June 2 was a reasonable guess. She said it was just
# as plausible as any other date (in June). She also said that after writing the
# article she had discovered another time change in 1916; this is the subject
# of another article which she wrote in October 2010.
# <a href="http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56">
# http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56
# </a>

# Here is a summary of the three clock change events in Creston's history:
# 1. 1884 or 1885: adoption of Mountain Standard Time (GMT-7)
# Exact date unknown
# 2. Oct 1916: switch to Pacific Standard Time (GMT-8)
# Exact date in October unknown; Sunday October 1 is a reasonable guess.
# 3. June 1918: switch to Pacific Daylight Time (GMT-7)
# Exact date in June unknown; Sunday June 2 is a reasonable guess.
# note#1:
# On Oct 27/1918 when daylight saving ended in the rest of Canada,
# Creston did not change its clocks.
# note#2:
# During WWII when the Federal Government legislated a mandatory clock change,
# Creston did not oblige.
# note#3:
# There is no guarantee that Creston will remain on Mountain Standard Time
# (UTC-7) forever.
# The subject was debated at least once this year by the town Council.
# <a href="http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html">
# http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html
# </a>

# During a period WWII, summer time (Daylight saying) was mandatory in Canada.
# In Creston, that was handled by shifting the area to PST (-8:00) then applying
# summer time to cause the offset to be -7:00, the same as it had been before
# the change. It can be argued that the timezone abbreviation during this
# period should be PDT rather than MST, but that doesn't seem important enough
# (to anyone) to further complicate the rules.

# The transition dates (and times) are guesses.

# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Vanc 1918 only - Apr 14 2:00 1:00 D
Rule Vanc 1918 only - Oct 31 2:00 0 S
Rule Vanc 1918 only - Oct 27 2:00 0 S
Rule Vanc 1942 only - Feb 9 2:00 1:00 W # War
Rule Vanc 1945 only - Aug 14 23:00u 1:00 P # Peace
Rule Vanc 1945 only - Sep 30 2:00 0 S
Expand All @@ -1813,7 +1889,10 @@ Zone America/Dawson_Creek -8:00:56 - LMT 1884
-8:00 Canada P%sT 1947
-8:00 Vanc P%sT 1972 Aug 30 2:00
-7:00 - MST

Zone America/Creston -7:46:04 - LMT 1884
-7:00 - MST 1916 Oct 1
-8:00 - PST 1918 Jun 2
-7:00 - MST

# Northwest Territories, Nunavut, Yukon

Expand Down
Loading

0 comments on commit aad8a35

Please sign in to comment.