svn commit: r257684 - stable/7/share/zoneinfo
Edwin Groothuis
edwin at FreeBSD.org
Tue Nov 5 06:40:38 UTC 2013
Author: edwin
Date: Tue Nov 5 06:40:35 2013
New Revision: 257684
URL: http://svnweb.freebsd.org/changeset/base/257684
Log:
MFC of 257681
tzdata2013f
- Jordan goes to winter time on the last Friday in October.
- Tocantins in Brazil will not go into summer time in October.
- Indonesian time zones renames.
- Lots of cleanups in with regarding to links and historical data.
tzdata2013h
- Libya didn't go back to DST.
- Fix Morocco 2038 issue.
- Brazil/Acre and ?Western Amazonas are chaning timezones.
Added:
stable/7/share/zoneinfo/leap-seconds.list
- copied unchanged from r257681, head/contrib/tzdata/leap-seconds.list
Modified:
stable/7/share/zoneinfo/africa
stable/7/share/zoneinfo/antarctica
stable/7/share/zoneinfo/asia
stable/7/share/zoneinfo/australasia
stable/7/share/zoneinfo/backward
stable/7/share/zoneinfo/etcetera
stable/7/share/zoneinfo/europe
stable/7/share/zoneinfo/northamerica
stable/7/share/zoneinfo/southamerica
stable/7/share/zoneinfo/zone.tab
Directory Properties:
stable/7/share/zoneinfo/ (props changed)
Modified: stable/7/share/zoneinfo/africa
==============================================================================
--- stable/7/share/zoneinfo/africa Tue Nov 5 06:39:23 2013 (r257683)
+++ stable/7/share/zoneinfo/africa Tue Nov 5 06:40:35 2013 (r257684)
@@ -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
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 J
# 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 J
# 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 J
# (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:
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]
@@ -1100,9 +1139,7 @@ Zone Africa/Khartoum 2:10:08 - LMT 1931
3:00 - EAT
# South Sudan
-Zone Africa/Juba 2:06:24 - LMT 1931
- 2:00 Sudan CA%sT 2000 Jan 15 12:00
- 3:00 - EAT
+Link Africa/Khartoum Africa/Juba
# Swaziland
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Modified: stable/7/share/zoneinfo/antarctica
==============================================================================
--- stable/7/share/zoneinfo/antarctica Tue Nov 5 06:39:23 2013 (r257683)
+++ stable/7/share/zoneinfo/antarctica Tue Nov 5 06:40:35 2013 (r257684)
@@ -16,9 +16,9 @@
#
# Except for the French entries,
# I made up all time zone abbreviations mentioned here; corrections welcome!
-# FORMAT is `zzz' and GMTOFF is 0 for locations while uninhabited.
+# FORMAT is 'zzz' and GMTOFF is 0 for locations while uninhabited.
-# These rules are stolen from the `southamerica' file.
+# 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
@@ -228,9 +228,10 @@ Zone Antarctica/Syowa 0 - zzz 1957 Jan 2
# Scott Island (never inhabited)
#
# year-round base
-# Scott, Ross Island, since 1957-01, is like Antarctica/McMurdo.
+# Scott Base, Ross Island, since 1957-01.
+# See Pacific/Auckland.
#
-# These rules for New Zealand are stolen from the `australasia' file.
+# These rules for New Zealand are stolen from the 'australasia' file.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule NZAQ 1974 only - Nov 3 2:00s 1:00 D
Rule NZAQ 1975 1988 - Oct lastSun 2:00s 1:00 D
@@ -268,11 +269,11 @@ Rule NZAQ 2008 max - Apr Sun>=1 2:00s 0
# From Lee Hotz (2001-03-08):
# I queried the folks at Columbia who spent the summer at Vostok and this is
# what they had to say about time there:
-# ``in the US Camp (East Camp) we have been on New Zealand (McMurdo)
+# "in the US Camp (East Camp) we have been on New Zealand (McMurdo)
# time, which is 12 hours ahead of GMT. The Russian Station Vostok was
# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead
# of GMT). This is a time zone I think two hours east of Moscow. The
-# natural time zone is in between the two: 8 hours ahead of GMT.''
+# natural time zone is in between the two: 8 hours ahead of GMT."
#
# From Paul Eggert (2001-05-04):
# This seems to be hopelessly confusing, so I asked Lee Hotz about it
@@ -337,16 +338,8 @@ Zone Antarctica/Palmer 0 - zzz 1965
-4:00 ChileAQ CL%sT
#
#
-# McMurdo, Ross Island, since 1955-12
-# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Antarctica/McMurdo 0 - zzz 1956
- 12:00 NZAQ NZ%sT
-#
-# Amundsen-Scott, South Pole, continuously occupied since 1956-11-20
-#
-# From Paul Eggert (1996-09-03):
-# Normally it wouldn't have a separate entry, since it's like the
-# larger Antarctica/McMurdo since 1970, but it's too famous to omit.
+# McMurdo Station, Ross Island, since 1955-12
+# Amundsen-Scott South Pole Station, continuously occupied since 1956-11-20
#
# From Chris Carrier (1996-06-27):
# Siple, the first commander of the South Pole station,
@@ -368,4 +361,4 @@ Zone Antarctica/McMurdo 0 - zzz 1956
# we have to go around and set them back 5 minutes or so.
# Maybe if we let them run fast all of the time, we'd get to leave here sooner!!
#
-Link Antarctica/McMurdo Antarctica/South_Pole
+# See 'australasia' for Antarctica/McMurdo.
Modified: stable/7/share/zoneinfo/asia
==============================================================================
--- stable/7/share/zoneinfo/asia Tue Nov 5 06:39:23 2013 (r257683)
+++ stable/7/share/zoneinfo/asia Tue Nov 5 06:40:35 2013 (r257684)
@@ -6,7 +6,7 @@
# go ahead and edit the file (and please send any changes to
# tz at iana.org for general use in the future).
-# From Paul Eggert (2013-02-21):
+# From Paul Eggert (2013-08-11):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
@@ -44,11 +44,11 @@
# 4:00 GST Gulf*
# 5:30 IST India
# 7:00 ICT Indochina*
-# 7:00 WIT west Indonesia
-# 8:00 CIT central Indonesia
+# 7:00 WIB west Indonesia (Waktu Indonesia Barat)
+# 8:00 WITA central Indonesia (Waktu Indonesia Tengah)
# 8:00 CST China
# 9:00 CJT Central Japanese Time (1896/1937)*
-# 9:00 EIT east Indonesia
+# 9:00 WIT east Indonesia (Waktu Indonesia Timur)
# 9:00 JST JDT Japan
# 9:00 KST KDT Korea
# 9:30 CST (Australian) Central Standard Time
@@ -756,7 +756,7 @@ Zone Asia/Dili 8:22:20 - LMT 1912
8:00 - TLT 1942 Feb 21 23:00 # E Timor Time
9:00 - JST 1945 Sep 23
9:00 - TLT 1976 May 3
- 8:00 - CIT 2000 Sep 17 00:00
+ 8:00 - WITA 2000 Sep 17 00:00
9:00 - TLT
# India
@@ -793,36 +793,53 @@ Zone Asia/Kolkata 5:53:28 - LMT 1880 # K
# (Hollandia). For now, assume all Indonesian locations other than Jayapura
# switched on 1945-09-23.
#
+# From Paul Eggert (2013-08-11):
+# Normally the tz database uses English-language abbreviations, but in
+# Indonesia it's typical to use Indonesian-language abbreviations even
+# when writing in English. For example, see the English-language
+# summary published by the Time and Frequency Laboratory of the
+# Research Center for Calibration, Instrumentation and Metrology,
+# Indonesia, <http://time.kim.lipi.go.id/time-eng.php> (2006-09-29).
+# The abbreviations are:
+#
+# WIB - UTC+7 - Waktu Indonesia Barat (Indonesia western time)
+# WITA - UTC+8 - Waktu Indonesia Tengah (Indonesia central time)
+# WIT - UTC+9 - Waktu Indonesia Timur (Indonesia eastern time)
+#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
+# Java, Sumatra
Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
# but this must be a typo.
- 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta
+ 7:07:12 - BMT 1923 Dec 31 23:47:12 # Batavia
7:20 - JAVT 1932 Nov # Java Time
- 7:30 - WIT 1942 Mar 23
+ 7:30 - WIB 1942 Mar 23
9:00 - JST 1945 Sep 23
- 7:30 - WIT 1948 May
- 8:00 - WIT 1950 May
- 7:30 - WIT 1964
- 7:00 - WIT
+ 7:30 - WIB 1948 May
+ 8:00 - WIB 1950 May
+ 7:30 - WIB 1964
+ 7:00 - WIB
+# west and central Borneo
Zone Asia/Pontianak 7:17:20 - LMT 1908 May
7:17:20 - PMT 1932 Nov # Pontianak MT
- 7:30 - WIT 1942 Jan 29
+ 7:30 - WIB 1942 Jan 29
9:00 - JST 1945 Sep 23
- 7:30 - WIT 1948 May
- 8:00 - WIT 1950 May
- 7:30 - WIT 1964
- 8:00 - CIT 1988 Jan 1
- 7:00 - WIT
+ 7:30 - WIB 1948 May
+ 8:00 - WIB 1950 May
+ 7:30 - WIB 1964
+ 8:00 - WITA 1988 Jan 1
+ 7:00 - WIB
+# Sulawesi, Lesser Sundas, east and south Borneo
Zone Asia/Makassar 7:57:36 - LMT 1920
7:57:36 - MMT 1932 Nov # Macassar MT
- 8:00 - CIT 1942 Feb 9
+ 8:00 - WITA 1942 Feb 9
9:00 - JST 1945 Sep 23
- 8:00 - CIT
+ 8:00 - WITA
+# Maluku Islands, West Papua, Papua
Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
- 9:00 - EIT 1944 Sep 1
+ 9:00 - WIT 1944 Sep 1
9:30 - CST 1964
- 9:00 - EIT
+ 9:00 - WIT
# Iran
@@ -1364,9 +1381,11 @@ Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 3
# until about the same time next year (at least).
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950
#
-# From Paul Eggert (2012-10-25):
-# For now, assume this is just a one-year measure. If it becomes
-# permanent, we should move Jordan from EET to AST effective tomorrow.
+# From Paul Eggert (2013-09-21):
+# It's looking like this change will be permanent; see
+# Petra News Agency, Cancelling winter saved Jordan $7 million (2013-02-20)
+# <http://www.albawaba.com/business/jordan-winter-electricity--472005>.
+# So move Jordan to UTC+3 as of the abovementioned date.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Jordan 1973 only - Jun 6 0:00 1:00 S
@@ -1392,15 +1411,15 @@ Rule Jordan 1995 1998 - Sep Fri>=15 0:00
Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 -
Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S
-Rule Jordan 2002 max - Mar lastThu 24:00 1:00 S
+Rule Jordan 2002 2012 - Mar lastThu 24:00 1:00 S
Rule Jordan 2003 only - Oct 24 0:00s 0 -
Rule Jordan 2004 only - Oct 15 0:00s 0 -
Rule Jordan 2005 only - Sep lastFri 0:00s 0 -
-Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 -
-Rule Jordan 2013 max - Oct lastFri 0:00s 0 -
+Rule Jordan 2006 2012 - Oct lastFri 0:00s 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Amman 2:23:44 - LMT 1931
- 2:00 Jordan EE%sT
+ 2:00 Jordan EE%sT 2012 Oct 26 0:00s
+ 3:00 - AST
# Kazakhstan
@@ -2280,9 +2299,18 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
# http://www.samanews.com/index.php?act=Show&id=154120
# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html
-# From Paul Eggert (2013-04-15):
+# From Steffen Thorsen (2013-09-24):
+# The Gaza and West Bank are ending DST Thursday at midnight
+# (2013-09-27 00:00:00) (one hour earlier than last year...).
+# This source in English, says "that winter time will go into effect
+# at midnight on Thursday in the West Bank and Gaza Strip":
+# http://english.wafa.ps/index.php?action=detail&id=23246
+# official source...:
+# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252
+
+# From Paul Eggert (2013-09-24):
# For future dates, guess the last Thursday in March at 24:00 through
-# the first Friday on or after September 21 at 01:00. This is consistent with
+# the first Friday on or after September 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs,
# which are for Gaza and Hebron respectively:
# http://www.timeanddate.com/worldclock/timezone.html?n=702
@@ -2313,7 +2341,8 @@ Rule Palestine 2011 only - Aug 1 0:00 0
Rule Palestine 2011 only - Aug 30 0:00 1:00 S
Rule Palestine 2011 only - Sep 30 0:00 0 -
Rule Palestine 2012 max - Mar lastThu 24:00 1:00 S
-Rule Palestine 2012 max - Sep Fri>=21 1:00 0 -
+Rule Palestine 2012 only - Sep 21 1:00 0 -
+Rule Palestine 2013 max - Sep Fri>=21 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
Modified: stable/7/share/zoneinfo/australasia
==============================================================================
--- stable/7/share/zoneinfo/australasia Tue Nov 5 06:39:23 2013 (r257683)
+++ stable/7/share/zoneinfo/australasia Tue Nov 5 06:40:35 2013 (r257684)
@@ -352,16 +352,25 @@ Zone Indian/Cocos 6:27:40 - LMT 1900
# today confirmed that Fiji will start daylight savings at 2 am on Sunday 21st
# October 2012 and end at 3 am on Sunday 20th January 2013.
# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=6702&catid=71&Itemid=155
-#
-# From Paul Eggert (2012-08-31):
-# For now, guess a pattern of the penultimate Sundays in October and January.
+
+# From the Fijian Government Media Center (2013-08-30) via David Wheeler:
+# Fiji will start daylight savings on Sunday 27th October, 2013 and end at 3am
+# on Sunday 19th January, 2014.... move clocks forward by one hour from 2am
+# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVING-STARTS-ON-SUNDAY,-27th-OCTOBER-201.aspx
+#
+# From Paul Eggert (2013-09-09):
+# For now, guess that Fiji springs forward the Sunday before the fourth
+# Monday in October. This matches both recent practice and
+# timeanddate.com's current spring-forward prediction.
+# For the January 2014 transition we guessed right while timeanddate.com
+# guessed wrong, so leave the fall-back prediction alone.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Fiji 1998 1999 - Nov Sun>=1 2:00 1:00 S
Rule Fiji 1999 2000 - Feb lastSun 3:00 0 -
Rule Fiji 2009 only - Nov 29 2:00 1:00 S
Rule Fiji 2010 only - Mar lastSun 3:00 0 -
-Rule Fiji 2010 max - Oct Sun>=18 2:00 1:00 S
+Rule Fiji 2010 max - Oct Sun>=21 2:00 1:00 S
Rule Fiji 2011 only - Mar Sun>=1 3:00 0 -
Rule Fiji 2012 max - Jan Sun>=18 3:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@@ -487,6 +496,7 @@ Zone Pacific/Auckland 11:39:04 - LMT 186
Zone Pacific/Chatham 12:13:48 - LMT 1957 Jan 1
12:45 Chatham CHA%sT
+Link Pacific/Auckland Antarctica/McMurdo
# Auckland Is
# uninhabited; Maori and Moriori, colonial settlers, pastoralists, sealers,
@@ -736,7 +746,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 190
# 1886-1891; Baker was similar but exact dates are not known.
# Inhabited by civilians 1935-1942; U.S. military bases 1943-1944;
# uninhabited thereafter.
-# Howland observed Hawaii Standard Time (UTC-10:30) in 1937;
+# Howland observed Hawaii Standard Time (UT-10:30) in 1937;
# see page 206 of Elgen M. Long and Marie K. Long,
# Amelia Earhart: the Mystery Solved, Simon & Schuster (2000).
# So most likely Howland and Baker observed Hawaii Time from 1935
@@ -749,8 +759,17 @@ Zone Pacific/Funafuti 11:56:52 - LMT 190
# no information; was probably like Pacific/Kiritimati
# Johnston
-# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Pacific/Johnston -10:00 - HST
+#
+# From Paul Eggert (2013-09-03):
+# In his memoirs of June 6th to October 4, 1945
+# <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes,
+# "We started our letdown to Kwajalein Atoll and landed there at 5:00 AM
+# Johnston time, 1:30 AM Kwajalein time." This was in June 1945, and
+# confirms that Johnston kept the same time as Honolulu in summer 1945.
+# We have no better information, so for now, assume this has been true
+# indefinitely into the past.
+#
+# See 'northamerica' for Pacific/Johnston.
# Kingman
# uninhabited
Modified: stable/7/share/zoneinfo/backward
==============================================================================
--- stable/7/share/zoneinfo/backward Tue Nov 5 06:39:23 2013 (r257683)
+++ stable/7/share/zoneinfo/backward Tue Nov 5 06:40:35 2013 (r257684)
@@ -22,15 +22,17 @@ Link America/Kentucky/Louisville America
Link America/Argentina/Mendoza America/Mendoza
Link America/Rio_Branco America/Porto_Acre
Link America/Argentina/Cordoba America/Rosario
-Link America/St_Thomas America/Virgin
+Link America/Denver America/Shiprock
+Link America/Port_of_Spain America/Virgin
+Link Pacific/Auckland Antarctica/South_Pole
Link Asia/Ashgabat Asia/Ashkhabad
+Link Asia/Kolkata Asia/Calcutta
Link Asia/Chongqing Asia/Chungking
Link Asia/Dhaka Asia/Dacca
Link Asia/Kathmandu Asia/Katmandu
-Link Asia/Kolkata Asia/Calcutta
Link Asia/Macau Asia/Macao
-Link Asia/Jerusalem Asia/Tel_Aviv
Link Asia/Ho_Chi_Minh Asia/Saigon
+Link Asia/Jerusalem Asia/Tel_Aviv
Link Asia/Thimphu Asia/Thimbu
Link Asia/Makassar Asia/Ujung_Pandang
Link Asia/Ulaanbaatar Asia/Ulan_Bator
@@ -88,10 +90,10 @@ Link Pacific/Auckland NZ
Link Pacific/Chatham NZ-CHAT
Link America/Denver Navajo
Link Asia/Shanghai PRC
+Link Pacific/Pohnpei Pacific/Ponape
Link Pacific/Pago_Pago Pacific/Samoa
-Link Pacific/Chuuk Pacific/Yap
Link Pacific/Chuuk Pacific/Truk
-Link Pacific/Pohnpei Pacific/Ponape
+Link Pacific/Chuuk Pacific/Yap
Link Europe/Warsaw Poland
Link Europe/Lisbon Portugal
Link Asia/Taipei ROC
Modified: stable/7/share/zoneinfo/etcetera
==============================================================================
--- stable/7/share/zoneinfo/etcetera Tue Nov 5 06:39:23 2013 (r257683)
+++ stable/7/share/zoneinfo/etcetera Tue Nov 5 06:40:35 2013 (r257684)
@@ -31,9 +31,9 @@ Link Etc/GMT Etc/GMT0
# even though this is the opposite of what many people expect.
# POSIX has positive signs west of Greenwich, but many people expect
# positive signs east of Greenwich. For example, TZ='Etc/GMT+4' uses
-# the abbreviation "GMT+4" and corresponds to 4 hours behind UTC
+# the abbreviation "GMT+4" and corresponds to 4 hours behind UT
# (i.e. west of Greenwich) even though many people would expect it to
-# mean 4 hours ahead of UTC (i.e. east of Greenwich).
+# mean 4 hours ahead of UT (i.e. east of Greenwich).
#
# In the draft 5 of POSIX 1003.1-200x, the angle bracket notation allows for
# TZ='<GMT-4>+4'; if you want time zone abbreviations conforming to
Modified: stable/7/share/zoneinfo/europe
==============================================================================
--- stable/7/share/zoneinfo/europe Tue Nov 5 06:39:23 2013 (r257683)
+++ stable/7/share/zoneinfo/europe Tue Nov 5 06:40:35 2013 (r257684)
@@ -42,7 +42,7 @@
# </a> (1998-09-21, in Portuguese)
#
-# I invented the abbreviations marked `*' in the following table;
+# I invented the abbreviations marked '*' in the following table;
# the rest are from earlier versions of this file, or from other sources.
# Corrections are welcome!
# std dst 2dst
@@ -96,7 +96,7 @@
# and a sketch map showing some of the sightlines involved. One paragraph
# of the text said:
#
-# `An old stone obelisk marking a forgotten terrestrial meridian stands
+# 'An old stone obelisk marking a forgotten terrestrial meridian stands
# beside the river at Kew. In the 18th century, before time and longitude
# was standardised by the Royal Observatory in Greenwich, scholars observed
# this stone and the movement of stars from Kew Observatory nearby. They
@@ -140,7 +140,7 @@
# From Paul Eggert (2003-09-27):
# Summer Time was first seriously proposed by William Willett (1857-1915),
# a London builder and member of the Royal Astronomical Society
-# who circulated a pamphlet ``The Waste of Daylight'' (1907)
+# who circulated a pamphlet "The Waste of Daylight" (1907)
# that proposed advancing clocks 20 minutes on each of four Sundays in April,
# and retarding them by the same amount on four Sundays in September.
# A bill was drafted in 1909 and introduced in Parliament several times,
@@ -165,10 +165,10 @@
# </a>
# From Paul Eggert (1996-09-03):
-# The OED Supplement says that the English originally said ``Daylight Saving''
+# The OED Supplement says that the English originally said "Daylight Saving"
# when they were debating the adoption of DST in 1908; but by 1916 this
# term appears only in quotes taken from DST's opponents, whereas the
-# proponents (who eventually won the argument) are quoted as using ``Summer''.
+# proponents (who eventually won the argument) are quoted as using "Summer".
# From Arthur David Olson (1989-01-19):
#
@@ -208,9 +208,9 @@
# which could not be said to run counter to any official description.
# From Paul Eggert (2000-10-02):
-# Howse writes (p 157) `DBST' too, but `BDST' seems to have been common
+# Howse writes (p 157) 'DBST' too, but 'BDST' seems to have been common
# and follows the more usual convention of putting the location name first,
-# so we use `BDST'.
+# so we use 'BDST'.
# Peter Ilieve (1998-04-19) described at length
# the history of summer time legislation in the United Kingdom.
@@ -431,6 +431,8 @@ Rule GB-Eire 1981 1989 - Oct Sun>=23 1:0
Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT
# Summer Time Order 1997 (S.I. 1997/2982)
# See EU for rules starting in 1996.
+#
+# Use Europe/London for Jersey, Guernsey, and the Isle of Man.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Europe/London -0:01:15 - LMT 1847 Dec 1 0:00s
@@ -797,7 +799,7 @@ Zone Europe/Brussels 0:17:30 - LMT 1880
1:00 EU CE%sT
# Bosnia and Herzegovina
-# see Serbia
+# See Europe/Belgrade.
# Bulgaria
#
@@ -825,10 +827,10 @@ Zone Europe/Sofia 1:33:16 - LMT 1880
2:00 EU EE%sT
# Croatia
-# see Serbia
+# See Europe/Belgrade.
# Cyprus
-# Please see the `asia' file for Asia/Nicosia.
+# Please see the 'asia' file for Asia/Nicosia.
# Czech Republic
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
@@ -845,6 +847,7 @@ Zone Europe/Prague 0:57:44 - LMT 1850
1:00 C-Eur CE%sT 1944 Sep 17 2:00s
1:00 Czech CE%sT 1979
1:00 EU CE%sT
+# Use Europe/Prague also for Slovakia.
# Denmark, Faroe Islands, and Greenland
@@ -1008,12 +1011,12 @@ Zone America/Thule -4:35:08 - LMT 1916 J
# From Peter Ilieve (1996-10-28):
# [IATA SSIM (1992/1996) claims that the Baltic republics switch at 01:00s,
# but a relative confirms that Estonia still switches at 02:00s, writing:]
-# ``I do not [know] exactly but there are some little different
+# "I do not [know] exactly but there are some little different
# (confusing) rules for International Air and Railway Transport Schedules
# conversion in Sunday connected with end of summer time in Estonia....
# A discussion is running about the summer time efficiency and effect on
# human physiology. It seems that Estonia maybe will not change to
-# summer time next spring.''
+# summer time next spring."
# From Peter Ilieve (1998-11-04), heavily edited:
# <a href="http://trip.rk.ee/cgi-bin/thw?${BASE}=akt&${OOHTML}=rtd&TA=1998&TO=1&AN=1390">
@@ -1068,7 +1071,7 @@ Zone Europe/Tallinn 1:39:00 - LMT 1880
# Well, here in Helsinki we're just changing from summer time to regular one,
# and it's supposed to change at 4am...
-# From Janne Snabb (2010-0715):
+# From Janne Snabb (2010-07-15):
#
# I noticed that the Finland data is not accurate for years 1981 and 1982.
# During these two first trial years the DST adjustment was made one hour
@@ -1125,7 +1128,7 @@ Link Europe/Helsinki Europe/Mariehamn
#
-# Shank & Pottenger seem to use `24:00' ambiguously; resolve it with Whitman.
+# Shank & Pottenger seem to use '24:00' ambiguously; resolve it with Whitman.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule France 1916 only - Jun 14 23:00s 1:00 S
Rule France 1916 1919 - Oct Sun>=1 23:00s 0 -
@@ -1415,7 +1418,7 @@ Zone Atlantic/Reykjavik -1:27:24 - LMT 1
# <a href="http://toi.iriti.cnr.it/uk/ienitlt.html">
# Day-light Saving Time in Italy (2006-02-03)
# </a>
-# (`FP' below), taken from an Italian National Electrotechnical Institute
+# ('FP' below), taken from an Italian National Electrotechnical Institute
# publication. When the three sources disagree, guess who's right, as follows:
#
# year FP Shanks&P. (S) Whitman (W) Go with:
@@ -1561,10 +1564,22 @@ Zone Europe/Riga 1:36:24 - LMT 1880
2:00 EU EE%sT
# Liechtenstein
-# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun
- 1:00 - CET 1981
- 1:00 EU CE%sT
+
+# From Paul Eggert (2013-09-09):
+# Shanks & Pottenger say Vaduz is like Zurich.
+
+# From Alois Treindl (2013-09-18):
+# http://www.eliechtensteinensia.li/LIJ/1978/1938-1978/1941.pdf
+# ... confirms on p. 6 that Liechtenstein followed Switzerland in 1941 and 1942.
+# I ... translate only the last two paragraphs:
+# ... during second world war, in the years 1941 and 1942, Liechtenstein
+# introduced daylight saving time, adapting to Switzerland. From 1943 on
+# central European time was in force throughout the year.
+# From a report of the duke's government to the high council,
+# regarding the introduction of a time law, of 31 May 1977.
+
+Link Europe/Zurich Europe/Vaduz
+
# Lithuania
@@ -1652,7 +1667,7 @@ Zone Europe/Luxembourg 0:24:36 - LMT 190
1:00 EU CE%sT
# Macedonia
-# see Serbia
+# See Europe/Belgrade.
# Malta
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
@@ -1745,7 +1760,7 @@ Zone Europe/Monaco 0:29:32 - LMT 1891 Ma
1:00 EU CE%sT
# Montenegro
-# see Serbia
+# See Europe/Belgrade.
# Netherlands
@@ -1860,7 +1875,7 @@ Zone Europe/Oslo 0:43:00 - LMT 1895 Jan
# before 1895, and therefore probably changed the local time somewhere
# between 1895 and 1925 (inclusive).
-# From Paul Eggert (2001-05-01):
+# From Paul Eggert (2013-09-04):
#
# Actually, Jan Mayen was never occupied by Germany during World War II,
# so it must have diverged from Oslo time during the war, as Oslo was
@@ -1871,7 +1886,7 @@ Zone Europe/Oslo 0:43:00 - LMT 1895 Jan
# 1941 with a small Norwegian garrison and continued operations despite
# frequent air ttacks from Germans. In 1943 the Americans established a
# radiolocating station on the island, called "Atlantic City". Possibly
-# the UTC offset changed during the war, but I think it unlikely that
+# the UT offset changed during the war, but I think it unlikely that
# Jan Mayen used German daylight-saving rules.
#
# Svalbard is more complicated, as it was raided in August 1941 by an
@@ -1884,9 +1899,8 @@ Zone Europe/Oslo 0:43:00 - LMT 1895 Jan
# the German armed forces at the Svalbard weather station code-named
# Haudegen did not surrender to the Allies until September 1945.
#
-# All these events predate our cutoff date of 1970. Unless we can
-# come up with more definitive info about the timekeeping during the
-# war years it's probably best just do...the following for now:
+# All these events predate our cutoff date of 1970, so use Europe/Oslo
+# for these regions.
Link Europe/Oslo Arctic/Longyearbyen
# Poland
@@ -2144,7 +2158,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891
# so we (Novosibirsk) simply did not switch.
#
# From Andrey A. Chernov (1996-10-04):
-# `MSK' and `MSD' were born and used initially on Moscow computers with
+# 'MSK' and 'MSD' were born and used initially on Moscow computers with
# UNIX-like OSes by several developer groups (e.g. Demos group, Kiae group)....
# The next step was the UUCP network, the Relcom predecessor
# (used mainly for mail), and MSK/MSD was actively used there.
@@ -2443,6 +2457,9 @@ Zone Asia/Anadyr 11:49:56 - LMT 1924 May
11:00 Russia ANA%sT 2011 Mar 27 2:00s
12:00 - ANAT
+# San Marino
+# See Europe/Rome.
+
# Serbia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Europe/Belgrade 1:22:00 - LMT 1884
@@ -2465,7 +2482,7 @@ Link Europe/Belgrade Europe/Zagreb # Cro
Link Europe/Prague Europe/Bratislava
# Slovenia
-# see Serbia
+# See Europe/Belgrade.
# Spain
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
@@ -2599,7 +2616,7 @@ Zone Europe/Stockholm 1:12:12 - LMT 1879
# and their performance improved enormously. Communities began to keep
# mean time in preference to apparent time -- Geneva from 1780 ....
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
-# From Whitman (who writes ``Midnight?''):
+# From Whitman (who writes "Midnight?"):
# Rule Swiss 1940 only - Nov 2 0:00 1:00 S
# Rule Swiss 1940 only - Dec 31 0:00 0 -
# From Shanks & Pottenger:
@@ -2644,23 +2661,53 @@ Zone Europe/Stockholm 1:12:12 - LMT 1879
# The 1940 rules must be deleted.
#
# One further detail for Switzerland, which is probably out of scope for
-# most users of tzdata:
-# The zone file
-# Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12
-# 0:29:44 - BMT 1894 Jun #Bern Mean Time
-# 1:00 Swiss CE%sT 1981
-# 1:00 EU CE%sT
+# most users of tzdata: The [Europe/Zurich zone] ...
# describes all of Switzerland correctly, with the exception of
# the Cantone Geneve (Geneva, Genf). Between 1848 and 1894 Geneve did not
# follow Bern Mean Time but kept its own local mean time.
# To represent this, an extra zone would be needed.
+#
+# From Alois Treindl (2013-09-11):
+# The Federal regulations say
+# http://www.admin.ch/opc/de/classified-compilation/20071096/index.html
+# ... the meridian for Bern mean time ... is 7 degrees 26'22.50".
+# Expressed in time, it is 0h29m45.5s.
+
+# From Pierre-Yves Berger (2013-09-11):
+# the "Circulaire du conseil federal" (December 11 1893)
+# <http://www.amtsdruckschriften.bar.admin.ch/viewOrigDoc.do?id=10071353> ...
+# clearly states that the [1894-06-01] change should be done at midnight
+# but if no one is present after 11 at night, could be postponed until one
+# hour before the beginning of service.
+
+# From Paul Eggert (2013-09-11):
+# Round BMT to the nearest even second, 0:29:46.
+#
+# We can find no reliable source for Shanks's assertion that all of Switzerland
+# except Geneva switched to Bern Mean Time at 00:00 on 1848-09-12. This book:
+#
+# Jakob Messerli. Gleichmassig, punktlich, schnell: Zeiteinteilung und
+# Zeitgebrauch in der Schweiz im 19. Jahrhundert. Chronos, Zurich 1995,
+# ISBN 3-905311-68-2, OCLC 717570797.
+#
+# suggests that the transition was more gradual, and that the Swiss did not
+# agree about civil time during the transition. The timekeeping it gives the
+# most detail for is postal and telegraph time: here, federal legislation (the
+# "Bundesgesetz uber die Erstellung von elektrischen Telegraphen") passed on
+# 1851-11-23, and an official implementation notice was published 1853-07-16
+# (Bundesblatt 1853, Bd. II, S. 859). On p 72 Messerli writes that in
+# practice since July 1853 Bernese time was used in "all postal and telegraph
+# offices in Switzerland from Geneva to St. Gallen and Basel to Chiasso"
+# (Google translation). For now, model this transition as occurring on
+# 1853-07-16, though it probably occurred at some other date in Zurich, and
+# legal civil time probably changed at still some other transition date.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S
Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12
- 0:29:44 - BMT 1894 Jun # Bern Mean Time
+Zone Europe/Zurich 0:34:08 - LMT 1853 Jul 16 # See above comment.
+ 0:29:46 - BMT 1894 Jun # Bern Mean Time
1:00 Swiss CE%sT 1981
1:00 EU CE%sT
@@ -2884,7 +2931,7 @@ Zone Europe/Simferopol 2:16:24 - LMT 188
# From Paul Eggert (2006-03-22):
# The _Economist_ (1994-05-28, p 45) reports that central Crimea switched
# from Kiev to Moscow time sometime after the January 1994 elections.
-# Shanks (1999) says ``date of change uncertain'', but implies that it happened
+# Shanks (1999) says "date of change uncertain", but implies that it happened
# sometime between the 1994 DST switches. Shanks & Pottenger simply say
# 1994-09-25 03:00, but that can't be right. For now, guess it
# changed in May.
@@ -2898,6 +2945,9 @@ Zone Europe/Simferopol 2:16:24 - LMT 188
3:00 - MSK 1997 Mar lastSun 1:00u
2:00 EU EE%sT
+# Vatican City
+# See Europe/Rome.
+
###############################################################################
# One source shows that Bulgaria, Cyprus, Finland, and Greece observe DST from
Copied: stable/7/share/zoneinfo/leap-seconds.list (from r257681, head/contrib/tzdata/leap-seconds.list)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/7/share/zoneinfo/leap-seconds.list Tue Nov 5 06:40:35 2013 (r257684, copy of r257681, head/contrib/tzdata/leap-seconds.list)
@@ -0,0 +1,231 @@
+#
+# In the following text, the symbol '#' introduces
+# a comment, which continues from that symbol until
+# the end of the line. A plain comment line has a
+# whitespace character following the comment indicator.
+# There are also special comment lines defined below.
+# A special comment will always have a non-whitespace
+# character in column 2.
+#
+# A blank line should be ignored.
+#
+# The following table shows the corrections that must
+# be applied to compute International Atomic Time (TAI)
+# from the Coordinated Universal Time (UTC) values that
+# are transmitted by almost all time services.
+#
+# The first column shows an epoch as a number of seconds
+# since 1900.0 and the second column shows the number of
+# seconds that must be added to UTC to compute TAI for
+# any timestamp at or after that epoch. The value on
+# each line is valid from the indicated initial instant
+# until the epoch given on the next one or indefinitely
+# into the future if there is no next line.
+# (The comment on each line shows the representation of
+# the corresponding initial epoch in the usual
+# day-month-year format. The epoch always begins at
+# 00:00:00 UTC on the indicated day. See Note 5 below.)
+#
+# Important notes:
+#
+# 1. Coordinated Universal Time (UTC) is often referred to
+# as Greenwich Mean Time (GMT). The GMT time scale is no
+# longer used, and the use of GMT to designate UTC is
+# discouraged.
+#
+# 2. The UTC time scale is realized by many national
+# laboratories and timing centers. Each laboratory
+# identifies its realization with its name: Thus
+# UTC(NIST), UTC(USNO), etc. The differences among
+# these different realizations are typically on the
+# order of a few nanoseconds (i.e., 0.000 000 00x s)
+# and can be ignored for many purposes. These differences
+# are tabulated in Circular T, which is published monthly
+# by the International Bureau of Weights and Measures
+# (BIPM). See www.bipm.fr for more information.
+#
+# 3. The current defintion of the relationship between UTC
+# and TAI dates from 1 January 1972. A number of different
+# time scales were in use before than epoch, and it can be
+# quite difficult to compute precise timestamps and time
+# intervals in those "prehistoric" days. For more information,
+# consult:
+#
+# The Explanatory Supplement to the Astronomical
+# Ephemeris.
+# or
+# Terry Quinn, "The BIPM and the Accurate Measurement
+# of Time," Proc. of the IEEE, Vol. 79, pp. 894-905,
+# July, 1991.
+#
+# 4. The insertion of leap seconds into UTC is currently the
+# responsibility of the International Earth Rotation Service,
+# which is located at the Paris Observatory:
+#
+# Central Bureau of IERS
+# 61, Avenue de l'Observatoire
+# 75014 Paris, France.
+#
+# Leap seconds are announced by the IERS in its Bulletin C
+#
+# See hpiers.obspm.fr or www.iers.org for more details.
+#
+# All national laboratories and timing centers use the
+# data from the BIPM and the IERS to construct their
+# local realizations of UTC.
+#
+# Although the definition also includes the possibility
+# of dropping seconds ("negative" leap seconds), this has
+# never been done and is unlikely to be necessary in the
+# foreseeable future.
+#
+# 5. If your system keeps time as the number of seconds since
+# some epoch (e.g., NTP timestamps), then the algorithm for
+# assigning a UTC time stamp to an event that happens during a positive
+# leap second is not well defined. The official name of that leap
+# second is 23:59:60, but there is no way of representing that time
+# in these systems.
+# Many systems of this type effectively stop the system clock for
+# one second during the leap second and use a time that is equivalent
+# to 23:59:59 UTC twice. For these systems, the corresponding TAI
+# timestamp would be obtained by advancing to the next entry in the
+# following table when the time equivalent to 23:59:59 UTC
+# is used for the second time. Thus the leap second which
+# occurred on 30 June 1972 at 23:59:59 UTC would have TAI
+# timestamps computed as follows:
+#
+# ...
+# 30 June 1972 23:59:59 (2287785599, first time): TAI= UTC + 10 seconds
+# 30 June 1972 23:59:60 (2287785599,second time): TAI= UTC + 11 seconds
+# 1 July 1972 00:00:00 (2287785600) TAI= UTC + 11 seconds
+# ...
+#
+# If your system realizes the leap second by repeating 00:00:00 UTC twice
+# (this is possible but not usual), then the advance to the next entry
+# in the table must occur the second time that a time equivlent to
+# 00:00:00 UTC is used. Thus, using the same example as above:
+#
+# ...
+# 30 June 1972 23:59:59 (2287785599): TAI= UTC + 10 seconds
+# 30 June 1972 23:59:60 (2287785600, first time): TAI= UTC + 10 seconds
+# 1 July 1972 00:00:00 (2287785600,second time): TAI= UTC + 11 seconds
+# ...
+#
+# in both cases the use of timestamps based on TAI produces a smooth
+# time scale with no discontinuity in the time interval.
+#
+# This complexity would not be needed for negative leap seconds (if they
+# are ever used). The UTC time would skip 23:59:59 and advance from
+# 23:59:58 to 00:00:00 in that case. The TAI offset would decrease by
+# 1 second at the same instant. This is a much easier situation to deal
+# with, since the difficulty of unambiguously representing the epoch
+# during the leap second does not arise.
+#
+# Questions or comments to:
+# Judah Levine
+# Time and Frequency Division
+# NIST
+# Boulder, Colorado
+# jlevine at boulder.nist.gov
+#
+# Last Update of leap second values: 11 January 2012
+#
+# The following line shows this last update date in NTP timestamp
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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