Here are proposed changes to the tz data reflecting most of the changes circulated recently. The changes for Cuba are the most pressing (the tz database is incorrect for today's time stamps). We still don't have reliable info for Haiti so I left it alone. I have not yet had time to carefully review the historical data for Mexico so that one is still in my in-box; sorry. Changes affecting current time stamps * Cuba observed DST starting Sunday. * Resolute, Nunavut switched from Central to Eastern time last November. (Thanks to Chris Walton.) Changes affecting near-future time stamps. * Mongolia has abolished DST. (Thanks to Ganbold Ts.) * Turkey will use EU rules this year, changing at 01:00 UTC rather than 01:00 standard time. (Thanks to Steffen Thorsen.) Changes affecting historical time stamps * Indonesia couldn't have switched from JST on August 1, 1945. Use September 23 instead, as we have a source for that date. Similarly, change Jayapura's 1944-01-01 to 1944-09-01. (Thanks to JohnTWB.) * Pangnirtung was founded in 1921, so it couldn't have been observing local time before that. Similarly, Iqaluit was founded August 1942, Rankin Inlet 1957, Cambridge Bay 1920, Yellowknife 1935, Inuvik 1953. (Some of these dates are approximate; corrections welcome.) Changes affecting comments only * Ecuador observed DST in 1992, but we have no data. (Thanks to Ron Echeverri.) * We have more formal announcements for Canada. (Thanks to Chris Walton.) * Wisconsin's legal time now matches the US's. (THanks to Douglas R. Bomberg.) Changes affecting the web page only. * AIX now uses the tz database, since 2002 apparently. * Add reference to tziCal. * The Australian reference is to the Bureau of Meteorology, not Metrology. (Thanks to data2doc.) * The Austrian reference is to the National Metrology Institute, the new name for the Office of Metrology. =================================================================== RCS file: RCS/asia,v retrieving revision 2006.15 retrieving revision 2006.15.0.1 diff -pu -r2006.15 -r2006.15.0.1 --- asia 2006/11/06 14:17:49 2006.15 +++ asia 2007/03/13 22:39:25 2006.15.0.1 @@ -413,6 +413,8 @@ Zone Asia/Tbilisi 2:59:16 - LMT 1880 # East Timor +# See Indonesia for the 1945 transition. + # From Joao Carrascalao, brother of the former governor of East Timor, in # <a href="http://etan.org/et99c/december/26-31/30ETMAY.htm"> # East Timor may be late for its millennium @@ -437,7 +439,7 @@ Zone Asia/Tbilisi 2:59:16 - LMT 1880 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dili 8:22:20 - LMT 1912 8:00 - TLT 1942 Feb 21 23:00 # E Timor Time - 9:00 - JST 1945 Aug + 9:00 - JST 1945 Sep 23 9:00 - TLT 1976 May 3 8:00 - CIT 2000 Sep 17 00:00 9:00 - TLT @@ -463,6 +465,19 @@ Zone Asia/Calcutta 5:53:28 - LMT 1880 # # time zone maps, I think that must refer to Western Borneo (Kalimantan Barat # and Kalimantan Tengah) switching from UTC+8 to UTC+7. # +# From Paul Eggert (2007-03-10): +# Here is another correction to Shanks & Pottenger. +# JohnTWB writes that Japanese forces did not surrender control in +# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and +# other formal surrender ceremonies were September 9, 11, and 13, plus +# September 12 for the regional surrender to Mountbatten in Singapore. +# These would be the earliest possible times for a change. +# Regimes horaires pour le monde entier, by Henri Le Corre, (Editions +# Traditionnelles, 1987, Paris) says that Java and Madura switched +# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura +# (Hollandia). For now, assume all Indonesian locations other than Jayapura +# switched on 1945-09-23. +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10 # Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13, @@ -470,7 +485,7 @@ Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta 7:20 - JAVT 1932 Nov # Java Time 7:30 - WIT 1942 Mar 23 - 9:00 - JST 1945 Aug + 9:00 - JST 1945 Sep 23 7:30 - WIT 1948 May 8:00 - WIT 1950 May 7:30 - WIT 1964 @@ -478,7 +493,7 @@ Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug Zone Asia/Pontianak 7:17:20 - LMT 1908 May 7:17:20 - PMT 1932 Nov # Pontianak MT 7:30 - WIT 1942 Jan 29 - 9:00 - JST 1945 Aug + 9:00 - JST 1945 Sep 23 7:30 - WIT 1948 May 8:00 - WIT 1950 May 7:30 - WIT 1964 @@ -487,10 +502,10 @@ Zone Asia/Pontianak 7:17:20 - LMT 1908 M Zone Asia/Makassar 7:57:36 - LMT 1920 7:57:36 - MMT 1932 Nov # Macassar MT 8:00 - CIT 1942 Feb 9 - 9:00 - JST 1945 Aug + 9:00 - JST 1945 Sep 23 8:00 - CIT Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov - 9:00 - EIT 1944 + 9:00 - EIT 1944 Sep 1 9:30 - CST 1964 9:00 - EIT @@ -1293,6 +1308,11 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # parliament passed during the tumultuous winter session." # For now, let's ignore this information, until we have more confirmation. +# From Ganbold Ts. (2007-02-26): +# Parliament of Mongolia has just changed the daylight-saving rule in February. +# They decided not to adopt daylight-saving time.... +# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742 + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S Rule Mongol 1983 only - Oct 1 0:00 0 - @@ -1311,8 +1331,8 @@ Rule Mongol 1985 1998 - Mar lastSun 0:00 Rule Mongol 1984 1998 - Sep lastSun 0:00 0 - # IATA SSIM (1999-09) says Mongolia no longer observes DST. Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S -Rule Mongol 2001 max - Sep lastSat 2:00 0 - -Rule Mongol 2002 max - Mar lastSat 2:00 1:00 S +Rule Mongol 2001 2006 - Sep lastSat 2:00 0 - +Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta =================================================================== RCS file: RCS/europe,v retrieving revision 2007.3 retrieving revision 2007.3.0.1 diff -pu -r2007.3 -r2007.3.0.1 --- europe 2007/02/26 14:09:16 2007.3 +++ europe 2007/03/13 22:39:25 2007.3.0.1 @@ -2296,6 +2296,16 @@ Zone Europe/Zurich 0:34:08 - LMT 1848 Se # From Paul Eggert (2007-01-03): # Prefer the above source to Shanks & Pottenger for time stamps after 1990. +# From Steffen Thorsen (2007-03-09): +# Starting 2007 though, it seems that they are adopting EU's 1:00 UTC +# start/end time, according to the following page (2007-03-07): +# http://www.ntvmsnbc.com/news/402029.asp +# The official document is located here - it is in Turkish...: +# http://rega.basbakanlik.gov.tr/eskiler/2007/03/20070307-7.htm +# I was able to locate the following seemingly official document +# (on a non-government server though) describing dates between 2002 and 2006: +# http://www.alomaliye.com/bkk_2002_3769.htm + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Turkey 1916 only - May 1 0:00 1:00 S Rule Turkey 1916 only - Oct 1 0:00 0 - @@ -2352,15 +2362,16 @@ Rule Turkey 1985 only - Apr 20 0:00 1:00 Rule Turkey 1985 only - Sep 28 0:00 0 - Rule Turkey 1986 1990 - Mar lastSun 2:00s 1:00 S Rule Turkey 1986 1990 - Sep lastSun 2:00s 0 - -Rule Turkey 1991 max - Mar lastSun 1:00s 1:00 S +Rule Turkey 1991 2006 - Mar lastSun 1:00s 1:00 S Rule Turkey 1991 1995 - Sep lastSun 1:00s 0 - -Rule Turkey 1996 max - Oct lastSun 1:00s 0 - +Rule Turkey 1996 2006 - Oct lastSun 1:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Istanbul 1:55:52 - LMT 1880 1:56:56 - IMT 1910 Oct # Istanbul Mean Time? 2:00 Turkey EE%sT 1978 Oct 15 3:00 Turkey TR%sT 1985 Apr 20 # Turkey Time - 2:00 Turkey EE%sT + 2:00 Turkey EE%sT 2007 + 2:00 EU EE%sT Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # Ukraine =================================================================== RCS file: RCS/northamerica,v retrieving revision 2007.3 retrieving revision 2007.3.0.1 diff -pu -r2007.3 -r2007.3.0.1 --- northamerica 2007/02/26 14:09:16 2007.3 +++ northamerica 2007/03/13 22:39:25 2007.3.0.1 @@ -307,6 +307,11 @@ Zone America/New_York -4:56:02 - LMT 188 # "bar time" in the state corresponds to 02:00, a number of citations # are issued for the "sale of class 'B' alcohol after prohibited # hours" within the deviated hour of this change every year.... +# +# From Douglas R. Bomberg (2007-03-12): +# Wisconsin has enacted (nearly eleventh-hour) legislation to get WI +# Statue 175 closer in synch with the US Congress' intent.... +# http://www.legis.state.wi.us/2007/data/acts/07Act3.pdf # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Chicago 1920 only - Jun 13 2:00 1:00 D @@ -916,7 +921,8 @@ Zone America/Menominee -5:50:27 - LMT 18 # Unless otherwise specified, the data for Canada are all from Shanks # & Pottenger. -# From Chris Walton (2006-04-01, 2006-04-25, 2006-06-26, 2007-01-31): +# From Chris Walton (2006-04-01, 2006-04-25, 2006-06-26, 2007-01-31, +# 2007-03-01): # The British Columbia government announced yesterday that it will # adjust daylight savings next year to align with changes in the # U.S. and the rest of Canada.... @@ -955,14 +961,9 @@ Zone America/Menominee -5:50:27 - LMT 18 # JavaScript. # http://www.exec.gov.nt.ca/currentnews/currentPR.asp?mode=archive # ... -# No formal announcement has been made from the Nunavut Government. -# The premier of Nunavut claimed in August of 2005 that he did not -# want to touch the issue; nothing more has been heard since. It is -# likely Nunavut will eventually follow the rest of the country but -# there will certainly be confusion on March 11/2007 if no formal -# announcement is made. Currently the TZ database and Microsoft make -# assumptions that Nunavut will follow the rest of the country. - +# Nunavut +# An amendment to the Interpretation Act was registered on February 19/2007.... +# http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf # From Paul Eggert (2006-04-25): # H. David Matthews and Mary Vincent's map @@ -1705,6 +1706,13 @@ Zone America/Dawson_Creek -8:00:56 - LMT # For lack of better information, assume that Southampton Island observed # daylight saving only during wartime. +# From Chris Walton (2007-03-01): +# ... the community of Resolute (located on Cornwallis Island in +# Nunavut) moved from Central Time to Eastern Time last November. +# Basically the community did not change its clocks at the end of +# daylight saving.... +# http://www.nnsl.com/frames/newspapers/2006-11/nov13_06none.html + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NT_YK 1918 only - Apr 14 2:00 1:00 D Rule NT_YK 1918 only - Oct 27 2:00 0 S @@ -1719,33 +1727,39 @@ Rule NT_YK 1980 1986 - Apr lastSun 2:00 Rule NT_YK 1980 2006 - Oct lastSun 2:00 0 S Rule NT_YK 1987 2006 - Apr Sun>=1 2:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] -Zone America/Pangnirtung -4:22:56 - LMT 1884 +# aka Panniqtuuq +Zone America/Pangnirtung 0 - zzz 1921 # trading post est. -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 -5:00 Canada E%sT 1999 Oct 31 2:00 -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 Canada E%sT -Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay before 1987 +# formerly Frobisher Bay +Zone America/Iqaluit 0 - zzz 1942 Aug # Frobisher Bay est. -5:00 NT_YK E%sT 1999 Oct 31 2:00 -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 Canada E%sT -# Now subsumed by America/Atikokan. -#Zone America/Coral_Harbour -5:32:40 - LMT 1884 -# -5:00 NT_YK E%sT 1946 -# -5:00 - EST -Zone America/Rankin_Inlet -6:08:20 - LMT 1884 +# aka Qausuittuq +Zone America/Resolute 0 - zzz 1947 Aug 31 # Resolute founded + -6:00 NT_YK C%sT 2000 Oct 29 2:00 + -5:00 - EST 2001 Apr 1 3:00 + -6:00 Canada C%sT 2006 Oct 29 2:00 + -5:00 Canada E%sT +# aka Kangiqiniq +Zone America/Rankin_Inlet 0 - zzz 1957 # Rankin Inlet founded -6:00 NT_YK C%sT 2000 Oct 29 2:00 -5:00 - EST 2001 Apr 1 3:00 -6:00 Canada C%sT -Zone America/Cambridge_Bay -7:00:20 - LMT 1884 +# aka Iqaluktuuttiaq +Zone America/Cambridge_Bay 0 - zzz 1920 # trading post est.? -7:00 NT_YK M%sT 1999 Oct 31 2:00 -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 - EST 2000 Nov 5 0:00 -6:00 - CST 2001 Apr 1 3:00 -7:00 Canada M%sT -Zone America/Yellowknife -7:37:24 - LMT 1884 +Zone America/Yellowknife 0 - zzz 1935 # Yellowknife founded? -7:00 NT_YK M%sT 1980 -7:00 Canada M%sT -Zone America/Inuvik -8:54:52 - LMT 1884 +Zone America/Inuvik 0 - zzz 1953 # Inuvik founded -8:00 NT_YK P%sT 1979 Apr lastSun 2:00 -7:00 NT_YK M%sT 1980 -7:00 Canada M%sT @@ -2135,6 +2149,12 @@ Zone America/Costa_Rica -5:36:20 - LMT 1 # watches should be set back one hour -- going back to 00:00 hours -- returning # to the normal schedule.... +# From Paul Eggert (2007-03-02): +# http://www.granma.cubaweb.cu/english/news/art89.html, dated yesterday, +# says Cuban clocks will advance at midnight on March 10. +# For lack of better information, assume Cuba will use US rules, +# except that it switches at midnight standard time as usual. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Cuba 1928 only - Jun 10 0:00 1:00 D Rule Cuba 1928 only - Oct 10 0:00 0 S @@ -2164,8 +2184,10 @@ Rule Cuba 1996 only - Oct 6 0:00s 0 S Rule Cuba 1997 only - Oct 12 0:00s 0 S Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D Rule Cuba 1998 2003 - Oct lastSun 0:00s 0 S -Rule Cuba 2000 max - Apr Sun>=1 0:00s 1:00 D -Rule Cuba 2006 max - Oct lastSun 0:00s 0 S +Rule Cuba 2000 2006 - Apr Sun>=1 0:00s 1:00 D +Rule Cuba 2006 only - Oct lastSun 0:00s 0 S +Rule Cuba 2007 max - Mar Sun>=8 0:00s 1:00 D +Rule Cuba 2007 max - Nov Sun>=1 0:00s 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Havana -5:29:28 - LMT 1890 =================================================================== RCS file: RCS/southamerica,v retrieving revision 2007.3 retrieving revision 2007.3.0.1 diff -pu -r2007.3 -r2007.3.0.1 --- southamerica 2007/02/26 14:09:16 2007.3 +++ southamerica 2007/03/13 22:39:25 2007.3.0.1 @@ -806,6 +806,13 @@ Zone America/Curacao -4:35:44 - LMT 1912 -4:00 - AST # Ecuador +# +# From Paul Eggert (2007-03-04): +# Apparently Ecuador had a failed experiment with DST in 1992. +# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and +# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both +# talk about "hora Sixto". Leave this alone for now, as we have no data. +# # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guayaquil -5:19:20 - LMT 1890 -5:14:00 - QMT 1931 # Quito Mean Time =================================================================== RCS file: RCS/zone.tab,v retrieving revision 2007.3 retrieving revision 2007.3.0.1 diff -pu -r2007.3 -r2007.3.0.1 --- zone.tab 2007/02/26 14:09:16 2007.3 +++ zone.tab 2007/03/13 22:39:25 2007.3.0.1 @@ -110,8 +110,9 @@ CA +4531-07334 America/Montreal Eastern CA +4339-07923 America/Toronto Eastern Time - Ontario - most locations CA +4901-08816 America/Nipigon Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973 CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario +CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut - most locations CA +6608-06544 America/Pangnirtung Eastern Time - Pangnirtung, Nunavut -CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut +CA +744144-0944945 America/Resolute Eastern Time - Resolute, Nunavut CA +484531-0913718 America/Atikokan Eastern Standard Time - Atikokan, Ontario and Southampton I, Nunavut CA +624900-0920459 America/Rankin_Inlet Central Time - central Nunavut CA +4953-09709 America/Winnipeg Central Time - Manitoba & west Ontario =================================================================== RCS file: RCS/tz-link.htm,v retrieving revision 2007.3 retrieving revision 2007.3.0.1 diff -pu -r2007.3 -r2007.3.0.1 --- tz-link.htm 2007/02/26 14:09:16 2007.3 +++ tz-link.htm 2007/03/13 22:39:25 2007.3.0.1 @@ -8,7 +8,7 @@ <meta http-equiv="Content-type" content='text/html; charset="US-ASCII"'> <meta name="DC.Creator" content="Eggert, Paul"> <meta name="DC.Contributor" content="Olson, Arthur David"> -<meta name="DC.Date" content="2007-02-22"> +<meta name="DC.Date" content="2007-03-13"> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time"> <meta name="DC.Identifier" content="http://www.twinsun.com/tz/tz-link.htm"> @@ -49,6 +49,7 @@ C Library</a> used in <a href="http://www.cygwin.com/">Cygwin</a>, <a href="http://www.delorie.com/djgpp/"><abbr title="DJ's GNU Programming Platform">DJGPP</abbr></a>, +<a href="http://www.ibm.com/servers/aix/">AIX</a>, <a href="http://www.hp.com/products1/unix/operating/">HP-UX</a>, <a href="http://www.sgi.com/developers/technology/irix/">IRIX</a>, <a href="http://www.apple.com/macosx/">Mac OS X</a>, @@ -176,13 +177,18 @@ href="http://www.w3.org/2000/01/foo">sch <h2>Other <code>tz</code> compilers</h2> <ul> <li><a href="http://dialspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/">Vzic iCalendar -Timezone Converter</a> describes a program Vzic that compiles +Timezone Converter</a> describes a <a +href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> +program that compiles <code>tz</code> source into iCalendar-compatible VTIMEZONE files. Vzic is freely available under the <a href="http://www.gnu.org/copyleft/gpl.html"><abbr>GNU</abbr> General Public License (<abbr title="General Public License">GPL</abbr>)</a>.</li> +<li><a href="http://sourceforge.net/projects/tzical/">tziCal - tz +database conversion utility</a> is like Vzic, except for the <a +href="http://msdn.microsoft.com/netframework/">.NET framework</a>.</li> <li><a href="http://search.cpan.org/dist/DateTime-TimeZone/">DateTime::TimeZone</a> contains a script <code>parse_olson</code> that compiles @@ -392,10 +398,10 @@ Zone Concepts</a> discusses terminologic <dd>The Parliamentary Library has commissioned <a href="http://www.aph.gov.au/LIBRARY/Pubs/rn/2006-07/07rn13.pdf">research note on daylight saving time in Australia</a>. -The Bureau of Metrology publishes a list of +The Bureau of Meteorology publishes a list of <a href="http://www.bom.gov.au/climate/averages/tables/dst_times.shtml">Implementation Dates of Daylight Savings Time within Australia</a>.</dd> <dt>Austria</dt> -<dd>The Federal Office of Metrology and Surveying publishes a +<dd>The National Metrology Institute publishes a table of <a href="http://www.metrologie.at/pdf/sommerzeit.pdf" hreflang="de">daylight saving time in Austria (in German)</a>.</dd> <dt>Belgium</dt>