July 2012 - tz - lists.iana.org

proposed time zone package changes (Samoa, Factory, et al.)
by Arthur David Olson Aug. 28, 2019

Aug. 28, 2019

Below find proposed time zone package changes; the executive summary: * Makefile Change LOCALTIME default from "Factory" to "GMT"; do not compile "factory" file (but keep it in the distribution). * Theory Remove reference to "Factory" zone. * australasia Change end of DST in Samoa in 2011 from 2011-04-03 0:00 to 2011-04-03 1:00 (thanks to Raymond Hughes for a reference). * localtime.c Initialize ttinfo structures filled by tzparse (thanks to Ravindra for reporting a valgrind warning). * zic.c Fix generation of POSIX strings for zones with rules using "weekday<=n" forms of dates (thanks to Lei Liu for finding the problem). Also, limit output for non-POSIX-specificable zones defined to follow the same rules every year. (Note that no zones of either of the above types appear in the distribution; these changes cater to add-on zones). If no problems are found, 2010n will appear on 2010-10-25. --ado diff -r -c old/Makefile new/Makefile *** old/Makefile Mon Sep 27 09:24:25 2010 --- new/Makefile Tue Oct 12 12:36:50 2010 *************** *** 1,5 **** # <pre> ! # @(#)Makefile 8.8 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)Makefile 8.9 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 12,18 **** # make zonenames # to get a list of the values you can use for LOCALTIME. ! LOCALTIME= Factory # If you want something other than Eastern United States time as a template # for handling POSIX-style time zone environment variables, --- 12,18 ---- # make zonenames # to get a list of the values you can use for LOCALTIME. ! LOCALTIME= GMT # If you want something other than Eastern United States time as a template # for handling POSIX-style time zone environment variables, *************** *** 262,269 **** DOCS= README Theory $(MANS) date.1 Makefile PRIMARY_YDATA= africa antarctica asia australasia \ europe northamerica southamerica ! YDATA= $(PRIMARY_YDATA) pacificnew etcetera factory backward ! NDATA= systemv SDATA= solar87 solar88 solar89 TDATA= $(YDATA) $(NDATA) $(SDATA) TABDATA= iso3166.tab zone.tab --- 262,269 ---- DOCS= README Theory $(MANS) date.1 Makefile PRIMARY_YDATA= africa antarctica asia australasia \ europe northamerica southamerica ! YDATA= $(PRIMARY_YDATA) pacificnew etcetera backward ! NDATA= systemv factory SDATA= solar87 solar88 solar89 TDATA= $(YDATA) $(NDATA) $(SDATA) TABDATA= iso3166.tab zone.tab diff -r -c old/Theory new/Theory *** old/Theory Mon Sep 27 09:24:25 2010 --- new/Theory Tue Oct 12 12:36:50 2010 *************** *** 1,4 **** ! @(#)Theory 8.4 This file is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! @(#)Theory 8.5 This file is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. *************** *** 287,294 **** See the file `backward' for most of these older names (e.g. `US/Eastern' instead of `America/New_York'). The other old-fashioned names still supported are ! `WET', `CET', `MET', `EET' (see the file `europe'), ! and `Factory' (see the file `factory'). ----- Time zone abbreviations ----- --- 287,293 ---- See the file `backward' for most of these older names (e.g. `US/Eastern' instead of `America/New_York'). The other old-fashioned names still supported are ! `WET', `CET', `MET', and `EET' (see the file `europe'). ----- Time zone abbreviations ----- diff -r -c old/australasia new/australasia *** old/australasia Mon Sep 27 09:24:27 2010 --- new/australasia Tue Oct 12 13:14:56 2010 *************** *** 1,5 **** # <pre> ! # @(#)australasia 8.18 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)australasia 8.19 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 487,497 **** # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 ! -11:00 1:00 WSDT 2011 Apr 3 -11:00 - WST # Solomon Is --- 487,507 ---- # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> + # From Raymond Hughes (2010-10-07): + # Please see + # <a href="http://www.mcil.gov.ws"> + # http://www.mcil.gov.ws + # </a>, + # the Ministry of Commerce, Industry and Labour (sideframe) "Last Sunday + # September 2010 (26/09/10) - adjust clocks forward from 12:00 midnight + # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks + # backwards from 1:00am to 12:00am" + Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 ! -11:00 1:00 WSDT 2011 Apr 3 1:00 -11:00 - WST # Solomon Is diff -r -c old/localtime.c new/localtime.c *** old/localtime.c Mon Sep 27 09:24:26 2010 --- new/localtime.c Tue Oct 12 12:36:51 2010 *************** *** 5,11 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 8.14"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 8.15"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 914,919 **** --- 914,920 ---- register unsigned char * typep; register char * cp; register int load_result; + static struct ttinfo zttinfo; INITIALIZE(dstname); stdname = name; *************** *** 986,991 **** --- 987,993 ---- /* ** Two transitions per year, from EPOCH_YEAR forward. */ + sp->ttis[0] = sp->ttis[1] = zttinfo; sp->ttis[0].tt_gmtoff = -dstoffset; sp->ttis[0].tt_isdst = 1; sp->ttis[0].tt_abbrind = stdlen + 1; *************** *** 1099,1106 **** } /* ** Finally, fill in ttis. - ** ttisstd and ttisgmt need not be handled. */ sp->ttis[0].tt_gmtoff = -stdoffset; sp->ttis[0].tt_isdst = FALSE; sp->ttis[0].tt_abbrind = 0; --- 1101,1108 ---- } /* ** Finally, fill in ttis. */ + sp->ttis[0] = sp->ttis[1] = zttinfo; sp->ttis[0].tt_gmtoff = -stdoffset; sp->ttis[0].tt_isdst = FALSE; sp->ttis[0].tt_abbrind = 0; *************** *** 1113,1118 **** --- 1115,1121 ---- dstlen = 0; sp->typecnt = 1; /* only standard time */ sp->timecnt = 0; + sp->ttis[0] = zttinfo; sp->ttis[0].tt_gmtoff = -stdoffset; sp->ttis[0].tt_isdst = 0; sp->ttis[0].tt_abbrind = 0; diff -r -c old/zic.c new/zic.c *** old/zic.c Mon Sep 27 09:24:26 2010 --- new/zic.c Tue Oct 12 13:37:29 2010 *************** *** 3,9 **** ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.22"; #include "private.h" #include "locale.h" --- 3,9 ---- ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.24"; #include "private.h" #include "locale.h" *************** *** 1881,1896 **** register int week; if (rp->r_dycode == DC_DOWGEQ) { ! week = 1 + rp->r_dayofmonth / DAYSPERWEEK; ! if ((week - 1) * DAYSPERWEEK + 1 != rp->r_dayofmonth) return -1; } else if (rp->r_dycode == DC_DOWLEQ) { if (rp->r_dayofmonth == len_months[1][rp->r_month]) week = 5; else { ! week = 1 + rp->r_dayofmonth / DAYSPERWEEK; ! if (week * DAYSPERWEEK - 1 != rp->r_dayofmonth) return -1; } } else return -1; /* "cannot happen" */ (void) sprintf(result, "M%d.%d.%d", --- 1881,1896 ---- register int week; if (rp->r_dycode == DC_DOWGEQ) { ! if ((rp->r_dayofmonth % DAYSPERWEEK) != 1) return -1; + week = 1 + rp->r_dayofmonth / DAYSPERWEEK; } else if (rp->r_dycode == DC_DOWLEQ) { if (rp->r_dayofmonth == len_months[1][rp->r_month]) week = 5; else { ! if ((rp->r_dayofmonth % DAYSPERWEEK) != 0) return -1; + week = rp->r_dayofmonth / DAYSPERWEEK; } } else return -1; /* "cannot happen" */ (void) sprintf(result, "M%d.%d.%d", *************** *** 2018,2023 **** --- 2018,2024 ---- register char * envvar; register int max_abbr_len; register int max_envvar_len; + register int prodstic; /* all rules are min to max */ max_abbr_len = 2 + max_format_len + max_abbrvar_len; max_envvar_len = 2 * max_abbr_len + 5 * 9; *************** *** 2032,2037 **** --- 2033,2039 ---- timecnt = 0; typecnt = 0; charcnt = 0; + prodstic = zonecount == 1; /* ** Thanks to Earl Chew ** for noting the need to unconditionally initialize startttisstd. *************** *** 2053,2058 **** --- 2055,2062 ---- updateminmax(rp->r_loyear); if (rp->r_hiwasnum) updateminmax(rp->r_hiyear); + if (rp->r_lowasnum || rp->r_hiwasnum) + prodstic = FALSE; } } /* *************** *** 2075,2080 **** --- 2079,2094 ---- if (max_year <= INT_MAX - YEARSPERREPEAT) max_year += YEARSPERREPEAT; else max_year = INT_MAX; + /* + ** Regardless of any of the above, + ** for a "proDSTic" zone which specifies that its rules + ** always have and always will be in effect, + ** we only need one cycle to define the zone. + */ + if (prodstic) { + min_year = 1900; + max_year = min_year + YEARSPERREPEAT; + } } /* ** For the benefit of older systems,

5 6

proposed tz change for Latvia, Lithuania
by Paul Eggert May 25, 2015

May 25, 2015

It's March Madness time for daylight-saving rule changes. Here's a proposed change to the tz database to keep up with the latest political development, which affects time stamps starting March 29: * Latvia and Lithuania will not observe DST, starting this year. Thanks to Andrei Ivanov for this info. =================================================================== RCS file: RCS/europe,v retrieving revision 2000.3 retrieving revision 2000.3.0.1 diff -pu -r2000.3 -r2000.3.0.1 --- europe 2000/03/04 15:31:08 2000.3 +++ europe 2000/03/08 17:48:59 2000.3.0.1 @@ -1135,6 +1135,12 @@ Link Europe/Rome Europe/San_Marino # 1997-01-21 on transition to Summer time ... established the same order of # daylight savings time settings as in the States of the European Union. +# From Andrei Ivanov (2000-03-06): +# This year Latvia will not switch to Daylight Savings Time (as specified in +# <a href="http://www.lv-laiks.lv/wwwraksti/2000/071072/vd4.htm"> +# The Regulations of the Cabinet of Ministers of the Rep. of Latvia of +# 29-Feb-2000 (#79)</a>, in Latvian for subscribers only). + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Latvia 1989 1996 - Mar lastSun 2:00s 1:00 S Rule Latvia 1989 1996 - Sep lastSun 2:00s 0 - @@ -1151,7 +1157,8 @@ Zone Europe/Riga 1:36:24 - LMT 1880 3:00 Russia MSK/MSD 1989 Mar lastSun 2:00s 2:00 1:00 EEST 1989 Sep lastSun 2:00s 2:00 Latvia EE%sT 1997 Jan 21 - 2:00 EU EE%sT + 2:00 EU EE%sT 2000 Feb 29 + 2:00 - EET # Liechtenstein # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1178,6 +1185,11 @@ Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun # motion to give up shifting to summer time in spring, as it was # already done by Estonia. +# From Andrei Ivanov (2000-03-06): +# I've heard that Ministers of three Baltic countries on their summit +# somewhere in February decided not to switch to summer time starting from +# this spring. + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Vilnius 1:41:16 - LMT 1880 1:24:00 - WMT 1917 # Warsaw Mean Time @@ -1192,7 +1204,8 @@ Zone Europe/Vilnius 1:41:16 - LMT 1880 2:00 C-Eur EE%sT 1998 2:00 - EET 1998 Mar 29 1:00u 1:00 EU CE%sT 1999 Oct 31 1:00u - 2:00 EU EE%sT + 2:00 EU EE%sT 2000 Feb + 2:00 - EET # Luxembourg # Whitman disagrees with most of these dates in minor ways; go with Shanks.

5 5

Adding Asia/Beijing timezone into the database
by Daoming Qiu Dec. 6, 2014

Dec. 6, 2014

"Beijing Time" is the standard time used for China region, so it is very strange that tzdatabase doesn't have timezone called Asia/Beijing. Strongly suggest to add "Asia/Beijing" zone into the database, and its information is very similar with "Asia/Shanghai".

14 17

a patch for zic.c to allow 'follow rules'
by Alois Treindl Sept. 10, 2013

Sept. 10, 2013

Dear Arthur, I have been preparing a small modification for zic.c which will allow it to understand a 'follow rule' in zone files, like this: # experimental table for Geneva, to test the 'follow' mechanism Zone Europe/Geneva 0:24:37 - LMT 1848 Sep 12 0:24:37 - GET 1894 Jun # Geneva MTime 0 follow Europe/Zurich For test purposes, one can simply insert this zone in the europe file. The feature is helpful in the extension of tzdata to cover complete timezone history. For this purpose, about 1000 additional zone files need to be written, and to be maintained. The process to do so has started in the astrological community, as it needs a complete pre-1970 timezone history. I will not bother you with details. I intend to help creating and maintaining a set of files like 'europe_hist', 'asia_hist' etc which contain the additional zones. The 'follow rule' will allow to keep these extra zone files very small, as usually the additional zones will all have a cross-over moment into a regular tzdata zone. I have for the moment called the modified zic source file zicx.c and prepared a patch file for zic.c to implement the 'follow rule' feature. I have tried to keep the modification very small. Please have a look at the patch, and check for the errors I have probably made. Description of the code: ------------------------ The follow rule must be the last line in a zone, and recursion is not allowed. It is parsed in inzsub() which reacts on GMTOFF = 0 and the word 'follow' in the RULE field. The zone line is stored in zones[] with a special value z_gmtoff = FOLLOW_MARK and the zone_name to follow in field z_rule (which is abused for this purpose). Before the call to outzone() the two sets of zone lines are patched together in a temporary array, so that outzone() and all functions deeper down() need not be modified. Patch ----- --- zic.c 2011-03-09 20:41:27.000000000 +0100 +++ zicx.c 2011-08-25 16:09:04.000000000 +0200 @@ -262,6 +262,17 @@ static int typecnt; #define YR_MAXIMUM 1 #define YR_ONLY 2 +/* +** follow rules, added by Alois Treindl August 2011 +** Zones may end with a line: 0 follow zone_name +** which the parser will represent with FOLLOW_MARK in z_gmtoff, +** and the zone name in z_rule. +** Before the call to outzone() the zone and its follow zone will be +** patched together, so that outzone() sees a regular zone array. +** To keep zone files readable, follow rules cannot be used recursively. +*/ +#define FOLLOW_MARK 999999 + static struct rule * rules; static int nrules; /* number of rules */ @@ -589,7 +600,48 @@ _("%s: More than one -L option specified */ for (j = i + 1; j < nzones && zones[j].z_name == NULL; ++j) continue; - outzone(&zones[i], j - i); + if (zones[j -1].z_gmtoff == FOLLOW_MARK) { + /* copy zone and follow zone into one new array */ + int k,n,m, nrows; + struct zone *xzones, *zp; + nrows = j - i - 1; + zp = &zones[j - 1]; /* line with the follow rule */ + xzones = (struct zone *) (void *) emalloc((int) (nrows * sizeof *xzones)); + for (k = 0; k < nrows; k++) + xzones[k] = zones[i + k]; + /* now find the follow zone in array zones[] */ + for (m = 0; m < nzones; m++) { + if (zones[m].z_name != NULL && strcmp(zp->z_rule, zones[m].z_name) == 0) break; + } + if (m == nzones) { /* error, follow zone not found */ + char *cp; + cp = emalloc(80 + strlen(zp->z_rule) + strlen(zones[i].z_name));; + sprintf(cp, "For zone %s follow zone %s not found, no zonefile created.", zones[i].z_name, zp->z_rule); + eat(zp->z_filename, zp->z_linenum); + error(cp); + ifree(cp); + ifree((void *)xzones); + } + /* now find the next date in the follow zone */ + for (n = m + 1; n < nzones; n++) { + if (zp->z_untiltime < zones[n].z_untiltime) break; + } + /* missing errorcode for case n == nzones, + * assume we are still in same follow zone. + * The follow zone part we need starts at zones[n]. + * Now find where follow zone ends, will be m. + */ + for (m = n; m < nzones && zones[m].z_name == NULL; ++m) + continue; + xzones = (struct zone *) (void *) erealloc((char *) xzones, (int) ((nrows + m - n) * sizeof *xzones)); + for (k = 0; k < m - n; k++) + xzones[nrows + k] = zones[n + k]; + nrows += m - n; + outzone(&xzones[0], nrows); + ifree((void *) xzones); + } else { + outzone(&zones[i], j - i); + } } /* ** Make links. @@ -784,7 +836,7 @@ associate(void) } for (i = 0; i < nzones; ++i) { zp = &zones[i]; - if (zp->z_nrules == 0) { + if (zp->z_nrules == 0 && zp->z_gmtoff != FOLLOW_MARK) { /* ** Maybe we have a local standard time offset. */ @@ -1079,11 +1131,23 @@ const int iscont; return FALSE; } } - z.z_rule = ecpyalloc(fields[i_rule]); - z.z_format = ecpyalloc(fields[i_format]); - if (max_format_len < strlen(z.z_format)) - max_format_len = strlen(z.z_format); - hasuntil = nfields > i_untilyear; + /* check for 0 follow zonename + ** zonename must contain at least one /, and follow must be + * 'follow' or an abbreviation thereof. + */ + if (z.z_gmtoff == 0 && strchr(fields[i_format], '/') != NULL + && itsabbr(fields[i_rule], "follow")) { + z.z_gmtoff = FOLLOW_MARK; + z.z_rule = ecpyalloc(fields[i_format]); + z.z_format = ""; + hasuntil = FALSE; /* no continue of zone now */ + } else { + z.z_rule = ecpyalloc(fields[i_rule]); + z.z_format = ecpyalloc(fields[i_format]); + if (max_format_len < strlen(z.z_format)) + max_format_len = strlen(z.z_format); + hasuntil = nfields > i_untilyear; + } if (hasuntil) { z.z_untilrule.r_filename = filename; z.z_untilrule.r_linenum = linenum;

1 1

[PATCH 4/4] Use a single version number for both code and data.
by Paul Eggert July 25, 2012

July 25, 2012

* Makefile (VERSION): New macro, superseding ... (TZCODE_VERSION, TZDATA_VERSION): Remove. All uses changed. (version.h): Call the variable TZVERSION, not TZCODE_VERSION. All uses changed. (tzselect): Interpolate TZVERSION, not TZCODE_VERSION. (public): Adjust to new versioning scheme. * tzselect.ksh (TZVERSION): Rename from TZCODE_VERSION. * zdump.c, zic.c (main): Use TZVERSION, not TZCODE_VERSION. --- Makefile | 11 +++++------ tzselect.ksh | 4 ++-- zdump.c | 2 +- zic.c | 2 +- 4 files changed, 9 insertions(+), 10 deletions(-) diff --git a/Makefile b/Makefile index 270fbaa..510d77f 100644 --- a/Makefile +++ b/Makefile @@ -3,8 +3,7 @@ # 2009-05-17 by Arthur David Olson. # Version numbers of the code and data distributions. -TZCODE_VERSION = tzcode2012c -TZDATA_VERSION = tzdata2012d +VERSION = 2012d # Change the line below for your time zone (after finding the zone you want in # the time zone files, or adding it to a time zone file). @@ -327,7 +326,7 @@ INSTALL: ALL install date.1 version.h: echo >$@ \ - 'static char const TZCODE_VERSION[]="$(TZCODE_VERSION)";' + 'static char const TZVERSION[]="tz$(VERSION)";' zdump: $(TZDOBJS) $(CC) $(CFLAGS) $(LFLAGS) $(TZDOBJS) $(LDLIBS) -o $@ @@ -379,7 +378,7 @@ tzselect: tzselect.ksh sed \ -e 's|AWK=[^}]*|AWK=$(AWK)|g' \ -e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \ - -e 's|$TZCODE_VERSION$=.*|\1=$(TZCODE_VERSION)|' \ + -e 's|$TZVERSION$=.*|\1=tz$(VERSION)|' \ <$? >$@ chmod +x $@ @@ -437,10 +436,10 @@ public: $(ENCHILADA) set-timestamps $(AWK) -f checktab.awk $(PRIMARY_YDATA) LC_ALL=C && export LC_ALL && \ tar $(TARFLAGS) -cf - $(DOCS) $(SOURCES) $(MISC) *.[1-8].txt | \ - gzip $(GZIPFLAGS) > $(TZCODE_VERSION).tar.gz + gzip $(GZIPFLAGS) > tzcode$(VERSION).tar.gz LC_ALL=C && export LC_ALL && \ tar $(TARFLAGS) -cf - $(DATA) | \ - gzip $(GZIPFLAGS) > $(TZDATA_VERSION).tar.gz + gzip $(GZIPFLAGS) > tzdata$(VERSION).tar.gz typecheck: make clean diff --git a/tzselect.ksh b/tzselect.ksh index 3ebaaa7..9e8ceea 100644 --- a/tzselect.ksh +++ b/tzselect.ksh @@ -1,6 +1,6 @@ #! /bin/ksh -TZCODE_VERSION=see_Makefile +TZVERSION=see_Makefile # Ask the user about the time zone, and output the resulting TZ value to stdout. # Interact with the user via stderr and stdin. @@ -55,7 +55,7 @@ EOF exit 0 elif [ "$1" = "--version" ]; then cat <<EOF -tzselect $TZCODE_VERSION +tzselect $TZVERSION EOF exit 0 fi diff --git a/zdump.c b/zdump.c index cbd3338..7b96a4f 100644 --- a/zdump.c +++ b/zdump.c @@ -282,7 +282,7 @@ char * argv[]; progname = argv[0]; for (i = 1; i < argc; ++i) if (strcmp(argv[i], "--version") == 0) { - (void) printf("%s\n", TZCODE_VERSION); + (void) printf("%s\n", TZVERSION); exit(EXIT_SUCCESS); } else if (strcmp(argv[i], "--help") == 0) { usage(stdout, EXIT_SUCCESS); diff --git a/zic.c b/zic.c index 28d7bcf..4ae31a2 100644 --- a/zic.c +++ b/zic.c @@ -497,7 +497,7 @@ char * argv[]; } for (i = 1; i < argc; ++i) if (strcmp(argv[i], "--version") == 0) { - (void) printf("%s\n", TZCODE_VERSION); + (void) printf("%s\n", TZVERSION); exit(EXIT_SUCCESS); } else if (strcmp(argv[i], "--help") == 0) { usage(stdout, EXIT_SUCCESS); -- 1.7.9.5

2 2

technical details for today's code and data release
by Paul Eggert July 25, 2012

July 25, 2012

# This email documents how I built today's tzcode and tzdata release. # It mostly uses POSIX shell syntax (hence the leading '#' here). # The idea is to document what I did this time, so that more of # this stuff can be done better and/or automated next time. # Here's how I built the release, on Ubuntu 12.04 x86, # starting from the unofficial public repository. git clone -n https://github.com/eggert/tz.git (cd tz git checkout ee42236d5192a0199bbac05385fe2f613b1b30e2 make check make public ) # Here's how I imported the release into the private IANA repository. # This procedure makes sense only if one has access to this repository, # which is not currently public. (cd tz-iana cp ../tz/tzcode2012c.tar.gz ../tz/tzdata2012d.tar.gz releases ln -sf releases/tzcode2012c.tar.gz tzcode-latest.tar.gz ln -sf releases/tzdata2012d.tar.gz tzdata-latest.tar.gz (cd data && tar xf ../tzdata-latest.tar.gz) (cd code && tar xf ../tzcode-latest.tar.gz) git add releases/tzcode2012c.tar.gz releases/tzdata2012d.tar.gz git commit -am'tzcode2012c and tzdata2012d' # Oops, forgot to update '.latest'. Do that now. (echo 'data tzdata2012d.tar.gz 2012-07-20' echo 'code tzcode2012c.tar.gz 2012-07-20' ) >.latest git commit -am'tzcode2012c and tzdata2012d in .latest.' ) # Here's how I created the signatures for the distributions. (cd tz gpg --detach-sign --armor -o tzcode2012c.tar.gz.sign tzcode2012c.tar.gz gpg --detach-sign --armor -o tzdata2012d.tar.gz.sign tzdata2012d.tar.gz ) # Here are the signatures themselves, generated by: (cd tz; more tzcode2012c.tar.gz.sign tzdata2012d.tar.gz.sign) :::::::::::::: tzcode2012c.tar.gz.sign :::::::::::::: -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQCPX9AAoJEO2X6Q5iqn40A+EQAKquIXzcZH92dAoJeGUO3Hfr p0pdz2wXQZvOhBZn3O2MVWZtLgER+e/qRBFi7zAm7/PAjJUwP54mVIdWnDUCGvn1 ieN/qd4qoF00d5g+xHfmo8XmogXfzjiQ6hqRqN3fSz0qzp2D9+8ckPyZyvU9hAYA OfcCB/EeSvi+U2Gg4GZzx0uhq5huhFPl6SRy+SHolAfWb0o+xxYlVsLv94jBX3rv MTEBkNPgx6FXdarfa1agvaJK4j1fWUQ056/80jfmrwZDrewTfaF2hNEDS0MAM9rC VGdbsW5mqikWEt2mFL0n1fn56bgxOFPDJOQvWt2gJ23tfAR/jhSYuQKwuAlwbwTm bTUcrxOJyyh6bUkgujHrkqSOkY+5ya6laF91ejn95tzfcTHqXOQmFT2jVBlZBhey f4pP16QHb5Q7Nf+kA//1oNDSYFrDMtfLoj/9IqLlxgzlfnwNjE+udOWgEVNGS9iF 99Bh+H0GNl1sd2xq65b7Ne+4M6pHuJzOtSCJwmJ+3+owYFs/ocIH97IAEMoFkwWJ 3LPSqLhep5OC+Z2O9OgYREhVjdPuUavz1+UF6xOroEbCAg4Act9Ok8HGlZ+q7gRk FuR/ItM+5dDFBrUQrNXRuAjR9HrcoZ9zyqMtFPzV6indI7EQwMuCtZopsi9PrC6A arMfzjlKJBJ4UCCy45wW =Dfi2 -----END PGP SIGNATURE----- :::::::::::::: tzdata2012d.tar.gz.sign :::::::::::::: -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQCPYfAAoJEO2X6Q5iqn406TwP/RHspsy44+WUFIEbfsijFkEf VW409JP0QSC0ocRe8ir1ijorNggF+j62uAQjvSSVaNb/tLy67/j+sUR5xU1/ccw6 bWM46r5P28ubSX4rs5FHQfOmOgA7LRBP+3+C6TJ8iUzSfHszZI00bOdAZWaFcQxw /hlBK83rp7vwQj2Sk9NU8tzyv1paGOcM8Ps/aL5gsZpkF48v2GQ0kDrZwazTgODD NZ4rvMg4mlNCZz6sSyTRa02B0uDkEXsNKLf/Gf3OfPIkoGdRQT6sa7qDdYXcjM1o QdTTjg+HAnCxt3CDmpNGC4K0y7aHRmZYlge1cXt0uZOvtmO9lTlSGUQIied1FuBs EaawtZw/L3Pd9bG1FeodPN/NIVQLaTss+ERU2FsgQjiOWxnaLvzSFmfBi/TrDpkW yPqqskACwhLHGLRu3uSThjAFA2OzItCdqbwHfMMNoo0aXL85ZipUpH3CnhDwOQxn I3s43HLepBpJi7RofR4KtolnRvlu2rfEAqmhUOhWk1ACVghI4ev2papQ5boucf0N B93AUQnv6WO9WgmeWrQ7CnYPoydBIlOYdjKmiOZ9c45qFsHEX76ZfUY6sbi3sLE/ mxOsYFZLBf5my8APmyespgO+WTXFCbMHBKbeKQRuchRuXYi5/72CxVJ1TZEt+aMd 0PJmnu0eg3TKYTE6/vX8 =eKib -----END PGP SIGNATURE-----

8 17

[PATCH 3/4] * .gitignore: New file.
by Paul Eggert July 25, 2012

July 25, 2012

It's not clear to me that the .gitignore file should be part of the tzcode or tzdata distributions, as it's needed only if you've gotten the files from the git repository, so for now the Makefile is not modified to add this to one or the other distribution. --- .gitignore | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 .gitignore diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..d36f26e --- /dev/null +++ b/.gitignore @@ -0,0 +1,10 @@ +*.o +*.tar.gz +*.txt +*~ +ChangeLog +tzselect +version.h +yearistype +zdump +zic -- 1.7.9.5

2 1

[PATCH 2/4] * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14.
by Paul Eggert July 25, 2012

July 25, 2012

Assume Shanks & Pottenger have been wrong by an hour since 1901. Reported by Steffen Thorsen in <http://mm.icann.org/pipermail/tz/2012-July/018168.html>. --- australasia | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/australasia b/australasia index dfadfa9..c7d5611 100644 --- a/australasia +++ b/australasia @@ -640,25 +640,25 @@ Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara # # 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> +# December 31 this year ... # -# 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> +# From Steffen Thorsen (2012-07-25) +# ... we double checked by calling hotels and offices based in Tokelau asking +# about the time there, and they all told a time that agrees with UTC+13.... +# Shanks says UTC-10 from 1901 [but] ... there is a good chance the change +# actually was to UTC-11 back then. # -# Patch supplied by Tim Parenti (2011-12-29) +# From Paul Eggert (2012-07-25) +# A Google Books snippet of Appendix to the Journals of the House of +# Representatives of New Zealand, Session 1948, +# <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau +# was "11 hours slow on G.M.T." Go with Thorsen and assume Shanks & Pottenger +# are off by an hour starting in 1901. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Pacific/Fakaofo -11:24:56 - LMT 1901 - -10:00 - TKT 2011 Dec 30 # Tokelau Time - 14:00 - TKT + -11:00 - TKT 2011 Dec 30 # Tokelau Time + 13:00 - TKT # Tonga # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -- 1.7.9.5

1 0

[PATCH 1/4] Remove trailing white space.
by Paul Eggert July 25, 2012

July 25, 2012

I hope to release a new version soon, since current time stamps are wrong in Tokelau. So, in preparation for that, here's the first of a set of four proposed patches to the tz code and data. This patch is purely clerical: it removes trailing white space (which my text editor does automatically) so that other patches don't have spurious differences. This proposed patch is also available as: https://github.com/eggert/tz/commit/369851954c101b5f51cdef65f73bb94ada790951 --- Theory | 28 +++++++++---------- asia | 86 +++++++++++++++++++++++++++++----------------------------- australasia | 28 +++++++++---------- europe | 14 +++++----- leapseconds | 6 ++-- northamerica | 24 ++++++++-------- southamerica | 18 ++++++------ 7 files changed, 102 insertions(+), 102 deletions(-) diff --git a/Theory b/Theory index 7094b27..e442bcd 100644 --- a/Theory +++ b/Theory @@ -194,26 +194,26 @@ better. ----- Scope of the tz database ----- -The tz database attempts to record the history and predicted future of -all computer-based clocks that track civil time. To represent this -data, the world is partitioned into regions whose clocks all agree -about time stamps that occur after the somewhat-arbitrary cutoff point -of the POSIX Epoch (1970-01-01 00:00:00 UTC). For each such region, -the database records all known clock transitions, and labels the region +The tz database attempts to record the history and predicted future of +all computer-based clocks that track civil time. To represent this +data, the world is partitioned into regions whose clocks all agree +about time stamps that occur after the somewhat-arbitrary cutoff point +of the POSIX Epoch (1970-01-01 00:00:00 UTC). For each such region, +the database records all known clock transitions, and labels the region with a notable location. -Clock transitions before 1970 are recorded for each such location, -because most POSIX-compatible systems support negative time stamps and +Clock transitions before 1970 are recorded for each such location, +because most POSIX-compatible systems support negative time stamps and could misbehave if data were omitted for pre-1970 transitions. -However, the database is not designed for and does not suffice for -applications requiring accurate handling of all past times everywhere, -as it would take far too much effort and guesswork to record all +However, the database is not designed for and does not suffice for +applications requiring accurate handling of all past times everywhere, +as it would take far too much effort and guesswork to record all details of pre-1970 civil timekeeping. -As noted in the README file, the tz database is not authoritative +As noted in the README file, the tz database is not authoritative (particularly not for pre-1970 time stamps), and it surely has errors. -Corrections are welcome and encouraged. Users requiring authoritative -data should consult national standards bodies and the references cited +Corrections are welcome and encouraged. Users requiring authoritative +data should consult national standards bodies and the references cited in the database's comments. diff --git a/asia b/asia index 9e5904c..a02e109 100644 --- a/asia +++ b/asia @@ -101,7 +101,7 @@ Zone Asia/Kabul 4:36:48 - LMT 1890 # 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. @@ -181,15 +181,15 @@ Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah # </a> # From A. N. M. Kamrus Saadat (2009-06-15): -# Finally we've got the official mail regarding DST start time where DST start -# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh -# Telecommunication Regulatory Commission). +# Finally we've got the official mail regarding DST start time where DST start +# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh +# Telecommunication Regulatory Commission). # # No DST end date has been announced yet. # From Alexander Krivenyshev (2009-09-25): -# Bangladesh won't go back to Standard Time from October 1, 2009, -# instead it will continue DST measure till the cabinet makes a fresh decision. +# Bangladesh won't go back to Standard Time from October 1, 2009, +# instead it will continue DST measure till the cabinet makes a fresh decision. # # Following report by same newspaper-"The Daily Star Friday": # "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1" @@ -203,8 +203,8 @@ Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah # From Steffen Thorsen (2009-10-13): # IANS (Indo-Asian News Service) now reports: -# Bangladesh has decided that the clock advanced by an hour to make -# maximum use of daylight hours as an energy saving measure would +# Bangladesh has decided that the clock advanced by an hour to make +# maximum use of daylight hours as an energy saving measure would # "continue for an indefinite period." # # One of many places where it is published: @@ -232,7 +232,7 @@ Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah # From Alexander Krivenyshev (2010-03-22): # According to Bangladesh newspaper "The Daily Star," -# Cabinet cancels Daylight Saving Time +# Cabinet cancels Daylight Saving Time # <a href="http://www.thedailystar.net/newDesign/latest_news.php?nid=22817"> # http://www.thedailystar.net/newDesign/latest_news.php?nid=22817 # </a> @@ -360,11 +360,11 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # observing daylight saving time in 1986. # # From Thomas S. Mullaney (2008-02-11): -# I think you're combining two subjects that need to treated -# separately: daylight savings (which, you're correct, wasn't -# implemented until the 1980s) and the unified time zone centered near -# Beijing (which was implemented in 1949). Briefly, there was also a -# "Lhasa Time" in Tibet and "Urumqi Time" in Xinjiang. The first was +# I think you're combining two subjects that need to treated +# separately: daylight savings (which, you're correct, wasn't +# implemented until the 1980s) and the unified time zone centered near +# Beijing (which was implemented in 1949). Briefly, there was also a +# "Lhasa Time" in Tibet and "Urumqi Time" in Xinjiang. The first was # ceased, and the second eventually recognized (again, in the 1980s). # # From Paul Eggert (2008-06-30): @@ -501,7 +501,7 @@ Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar # as of 2009-10-28: # Year Period # 1941 1 Apr to 30 Sep -# 1942 Whole year +# 1942 Whole year # 1943 Whole year # 1944 Whole year # 1945 Whole year @@ -592,16 +592,16 @@ Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30 # From Arthur David Olson (2010-04-07): # Here's Google's translation of the table at the bottom of the "summert.htm" page: # Decade Name Start and end date -# Republic of China 34 years to 40 years (AD 1945-1951 years) Summer Time May 1 to September 30 -# 41 years of the Republic of China (AD 1952) Daylight Saving Time March 1 to October 31 -# Republic of China 42 years to 43 years (AD 1953-1954 years) Daylight Saving Time April 1 to October 31 -# In the 44 years to 45 years (AD 1955-1956 years) Daylight Saving Time April 1 to September 30 -# Republic of China 46 years to 48 years (AD 1957-1959) Summer Time April 1 to September 30 -# Republic of China 49 years to 50 years (AD 1960-1961) Summer Time June 1 to September 30 -# Republic of China 51 years to 62 years (AD 1962-1973 years) Stop Summer Time -# Republic of China 63 years to 64 years (1974-1975 AD) Daylight Saving Time April 1 to September 30 -# Republic of China 65 years to 67 years (1976-1978 AD) Stop Daylight Saving Time -# Republic of China 68 years (AD 1979) Daylight Saving Time July 1 to September 30 +# Republic of China 34 years to 40 years (AD 1945-1951 years) Summer Time May 1 to September 30 +# 41 years of the Republic of China (AD 1952) Daylight Saving Time March 1 to October 31 +# Republic of China 42 years to 43 years (AD 1953-1954 years) Daylight Saving Time April 1 to October 31 +# In the 44 years to 45 years (AD 1955-1956 years) Daylight Saving Time April 1 to September 30 +# Republic of China 46 years to 48 years (AD 1957-1959) Summer Time April 1 to September 30 +# Republic of China 49 years to 50 years (AD 1960-1961) Summer Time June 1 to September 30 +# Republic of China 51 years to 62 years (AD 1962-1973 years) Stop Summer Time +# Republic of China 63 years to 64 years (1974-1975 AD) Daylight Saving Time April 1 to September 30 +# Republic of China 65 years to 67 years (1976-1978 AD) Stop Daylight Saving Time +# Republic of China 68 years (AD 1979) Daylight Saving Time July 1 to September 30 # Republic of China since 69 years (AD 1980) Stop Daylight Saving Time # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -1835,15 +1835,15 @@ Zone Asia/Muscat 3:54:20 - LMT 1920 # shown 8 per cent higher consumption of electricity. # From Alex Krivenyshev (2008-05-15): -# -# Here is an article that Pakistan plan to introduce Daylight Saving Time +# +# Here is an article that Pakistan plan to introduce Daylight Saving Time # on June 1, 2008 for 3 months. -# -# "... The federal cabinet on Wednesday announced a new conservation plan to help -# reduce load shedding by approving the closure of commercial centres at 9pm and -# moving clocks forward by one hour for the next three months. +# +# "... The federal cabinet on Wednesday announced a new conservation plan to help +# reduce load shedding by approving the closure of commercial centres at 9pm and +# moving clocks forward by one hour for the next three months. # ...." -# +# # <a href="http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html"> # http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html # </a> @@ -1903,7 +1903,7 @@ Zone Asia/Muscat 3:54:20 - LMT 1920 # Government has decided to restore the previous time by moving the # clocks backward by one hour from October 1. A formal announcement to # this effect will be made after the Prime Minister grants approval in -# this regard." +# this regard." # <a href="http://www.thenews.com.pk/updates.asp?id=87168"> # http://www.thenews.com.pk/updates.asp?id=87168 # </a> @@ -2199,7 +2199,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907 # <a href="http://www.maannews.net/eng/ViewDetails.aspx?ID=306795"> # http://www.maannews.net/eng/ViewDetails.aspx?ID=306795 # </a> -# the clocks were set back one hour at 2010-08-11 00:00:00 local time in +# the clocks were set back one hour at 2010-08-11 00:00:00 local time in # Gaza and the West Bank. # Some more background info: # <a href="http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html"> @@ -2238,7 +2238,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907 # The rules for Egypt are stolen from the `africa' file. # From Steffen Thorsen (2011-09-30): -# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30 +# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30 # 00:00). # So West Bank and Gaza now have the same time again. # @@ -2512,19 +2512,19 @@ Rule Syria 2007 only - Mar lastFri 0:00 1:00 S # having it between Wednesday and Thursday (two workdays in Syria) since the # weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now # it is implemented at midnight of the last workday before weekend... -# +# # From Steffen Thorsen (2007-10-27): # Jesper Norgaard Welen wrote: -# +# # > "Winter local time in Syria will be observed at midnight of Thursday 1 # > November 2007, and the clock will be put back 1 hour." -# +# # I found confirmation on this in this gov.sy-article (Arabic): # http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247 -# +# # which using Google's translate tools says: -# Council of Ministers also approved the commencement of work on -# identifying the winter time as of Friday, 2/11/2007 where the 60th +# Council of Ministers also approved the commencement of work on +# identifying the winter time as of Friday, 2/11/2007 where the 60th # minute delay at midnight Thursday 1/11/2007. Rule Syria 2007 only - Nov Fri>=1 0:00 0 - @@ -2590,8 +2590,8 @@ Rule Syria 2007 only - Nov Fri>=1 0:00 0 - # </a> # From Steffen Thorsen (2009-10-27): -# The Syrian Arab News Network on 2009-09-29 reported that Syria will -# revert back to winter (standard) time on midnight between Thursday +# The Syrian Arab News Network on 2009-09-29 reported that Syria will +# revert back to winter (standard) time on midnight between Thursday # 2009-10-29 and Friday 2009-10-30: # <a href="http://www.sana.sy/ara/2/2009/09/29/247012.htm"> # http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic) diff --git a/australasia b/australasia index d6f819d..dfadfa9 100644 --- a/australasia +++ b/australasia @@ -283,9 +283,9 @@ Zone Indian/Cocos 6:27:40 - LMT 1900 # </a> # From Alexander Krivenyshev (2010-10-24): -# According to Radio Fiji and Fiji Times online, Fiji will end DST 3 +# According to Radio Fiji and Fiji Times online, Fiji will end DST 3 # weeks earlier than expected - on March 6, 2011, not March 27, 2011... -# Here is confirmation from Government of the Republic of the Fiji Islands, +# Here is confirmation from Government of the Republic of the Fiji Islands, # Ministry of Information (fiji.gov.fj) web site: # <a href="http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:da…"> # http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=2608:da… @@ -296,15 +296,15 @@ Zone Indian/Cocos 6:27:40 - LMT 1900 # </a> # From Steffen Thorsen (2011-10-03): -# Now the dates have been confirmed, and at least our start date +# Now the dates have been confirmed, and at least our start date # assumption was correct (end date was one week wrong). # # <a href="http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=4966:da…"> # www.fiji.gov.fj/index.php?option=com_content&view=article&id=4966:daylight-… # </a> # which says -# Members of the public are reminded to change their time to one hour in -# advance at 2am to 3am on October 23, 2011 and one hour back at 3am to +# Members of the public are reminded to change their time to one hour in +# advance at 2am to 3am on October 23, 2011 and one hour back at 3am to # 2am on February 26 next year. # From Ken Rylander (2011-10-24) @@ -558,7 +558,7 @@ Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5 # From David Zuelke (2011-05-09): # Subject: Samoa to move timezone from east to west of international date line -# +# # <a href="http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963"> # http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963 # </a> @@ -1339,22 +1339,22 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # See "southeast Australia" above for 2008 and later. # From Steffen Thorsen (2009-04-28): -# According to the official press release, South Australia's extended daylight -# saving period will continue with the same rules as used during the 2008-2009 +# According to the official press release, South Australia's extended daylight +# saving period will continue with the same rules as used during the 2008-2009 # summer (southern hemisphere). -# +# # From # <a href="http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf"> # http://www.safework.sa.gov.au/uploaded_files/DaylightDatesSet.pdf # </a> -# The extended daylight saving period that South Australia has been trialling +# The extended daylight saving period that South Australia has been trialling # for over the last year is now set to be ongoing. -# Daylight saving will continue to start on the first Sunday in October each +# Daylight saving will continue to start on the first Sunday in October each # year and finish on the first Sunday in April the following year. -# Industrial Relations Minister, Paul Caica, says this provides South Australia -# with a consistent half hour time difference with NSW, Victoria, Tasmania and +# Industrial Relations Minister, Paul Caica, says this provides South Australia +# with a consistent half hour time difference with NSW, Victoria, Tasmania and # the ACT for all 52 weeks of the year... -# +# # We have a wrap-up here: # <a href="http://www.timeanddate.com/news/time/south-australia-extends-dst.html"> # http://www.timeanddate.com/news/time/south-australia-extends-dst.html diff --git a/europe b/europe index d600ea0..5d2acc5 100644 --- a/europe +++ b/europe @@ -574,12 +574,12 @@ Rule Russia 1996 2010 - Oct lastSun 2:00s 0 - # According to Kremlin press service, Russian President Dmitry Medvedev # signed a federal law "On calculation of time" on June 9, 2011. # According to the law Russia is abolishing daylight saving time. -# -# Medvedev signed a law "On the Calculation of Time" (in russian): +# +# Medvedev signed a law "On the Calculation of Time" (in russian): # <a href="http://bmockbe.ru/events/?ID=7583"> # http://bmockbe.ru/events/?ID=7583 # </a> -# +# # Medvedev signed a law on the calculation of the time (in russian): # <a href="http://www.regnum.ru/news/polit/1413906.html"> # http://www.regnum.ru/news/polit/1413906.html @@ -1687,7 +1687,7 @@ Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta # From Alexander Krivenyshev (2011-10-26) # NO need to divide Moldova into two timezones at this point. # As of today, Transnistria (Pridnestrovie)- Tiraspol reversed its own -# decision to abolish DST this winter. +# decision to abolish DST this winter. # Following Moldova and neighboring Ukraine- Transnistria (Pridnestrovie)- # Tiraspol will go back to winter time on October 30, 2011. # News from Moldova (in russian): @@ -2577,11 +2577,11 @@ Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 # http://www.alomaliye.com/bkk_2002_3769.htm # From Gökdeniz Karadağ (2011-03-10): -# +# # According to the articles linked below, Turkey will change into summer # time zone (GMT+3) on March 28, 2011 at 3:00 a.m. instead of March 27. # This change is due to a nationwide exam on 27th. -# +# # <a href="http://www.worldbulletin.net/?aType=haber&ArticleID=70872"> # http://www.worldbulletin.net/?aType=haber&ArticleID=70872 # </a> @@ -2698,7 +2698,7 @@ Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # time this year after all. # # From Udo Schwedt (2011-10-18): -# As far as I understand, the recent change to the Ukranian time zone +# As far as I understand, the recent change to the Ukranian time zone # (Europe/Kiev) to introduce permanent daylight saving time (similar # to Russia) was reverted today: # diff --git a/leapseconds b/leapseconds index 6a914df..5b5c70e 100644 --- a/leapseconds +++ b/leapseconds @@ -77,8 +77,8 @@ Leap 2012 Jun 30 23:59:60 + 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: -# +# 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 @@ -95,6 +95,6 @@ Leap 2012 Jun 30 23:59:60 + S # # # Daniel GAMBIS -# Head +# Head # Earth Orientation Center of IERS # Observatoire de Paris, France diff --git a/northamerica b/northamerica index 84876c9..1f784e0 100644 --- a/northamerica +++ b/northamerica @@ -478,7 +478,7 @@ Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 -8:00 US P%sT 1946 -8:00 - PST 1969 -8:00 US P%sT 1980 Apr 27 2:00 - -9:00 US Y%sT 1980 Oct 26 2:00 + -9:00 US Y%sT 1980 Oct 26 2:00 -8:00 US P%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT @@ -1843,7 +1843,7 @@ Zone America/Edmonton -7:33:52 - LMT 1906 Sep # 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) +# 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. @@ -2673,20 +2673,20 @@ Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose # except that it switches at midnight standard time as usual. # # From Steffen Thorsen (2007-10-25): -# Carlos Alberto Fonseca Arauz informed me that Cuba will end DST one week +# Carlos Alberto Fonseca Arauz informed me that Cuba will end DST one week # earlier - on the last Sunday of October, just like in 2006. -# +# # He supplied these references: -# +# # http://www.prensalatina.com.mx/article.asp?ID=%7B4CC32C1B-A9F7-42FB-8A07-86… # http://actualidad.terra.es/sociedad/articulo/cuba_llama_ahorrar_energia_cam… -# +# # From Alex Kryvenishev (2007-10-25): # Here is also article from Granma (Cuba): -# +# # [Regira] el Horario Normal desde el [proximo] domingo 28 de octubre # http://www.granma.cubaweb.cu/2007/10/24/nacional/artic07.html -# +# # http://www.worldtimezone.com/dst_news/dst_news_cuba03.html # From Arthur David Olson (2008-03-09): @@ -2770,7 +2770,7 @@ Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose # </a> # # From Steffen Thorsen (2011-10-30) -# Cuba will end DST two weeks later this year. Instead of going back +# Cuba will end DST two weeks later this year. Instead of going back # tonight, it has been delayed to 2011-11-13 at 01:00. # # One source (Spanish) @@ -2782,11 +2782,11 @@ Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose # <a href="http://www.timeanddate.com/news/time/cuba-time-changes-2011.html"> # http://www.timeanddate.com/news/time/cuba-time-changes-2011.html # </a> -# +# # From Steffen Thorsen (2012-03-01) -# According to Radio Reloj, Cuba will start DST on Midnight between March +# According to Radio Reloj, Cuba will start DST on Midnight between March # 31 and April 1. -# +# # Radio Reloj has the following info (Spanish): # <a href="http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529…"> # http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529… diff --git a/southamerica b/southamerica index ff6b2f0..ab4d14d 100644 --- a/southamerica +++ b/southamerica @@ -231,7 +231,7 @@ Rule Arg 2000 only - Mar 3 0:00 0 - Rule Arg 2007 only - Dec 30 0:00 1:00 S Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S - + # From Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing # its timezone this winter... starting tomorrow night.... @@ -321,9 +321,9 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # confirms what Alex Krivenyshev has earlier sent to the tz # emailing list about that San Luis plans to return to standard # time much earlier than the rest of the country. It also -# confirms that upon request the provinces San Juan and Mendoza -# refused to follow San Luis in this change. -# +# confirms that upon request the provinces San Juan and Mendoza +# refused to follow San Luis in this change. +# # The change is supposed to take place Monday the 21.st at 0:00 # hours. As far as I understand it if this goes ahead, we need # a new timezone for San Luis (although there are also documented @@ -385,7 +385,7 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # <a href="http://www.lanacion.com.ar/nota.asp?nota_id=1107912"> # http://www.lanacion.com.ar/nota.asp?nota_id=1107912 # </a> -# +# # The press release says: # (...) anunció que el próximo domingo a las 00:00 los puntanos deberán # atrasar una hora sus relojes. @@ -799,8 +799,8 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # # From Alexander Krivenyshev (2011-10-04): # State Bahia will return to Daylight savings time this year after 8 years off. -# The announcement was made by Governor Jaques Wagner in an interview to a -# television station in Salvador. +# The announcement was made by Governor Jaques Wagner in an interview to a +# television station in Salvador. # In Portuguese: # <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma…"> @@ -1159,7 +1159,7 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # 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 +# The Supreme Decree is located at # <a href="http://www.shoa.cl/servicios/supremo316.pdf"> # http://www.shoa.cl/servicios/supremo316.pdf # </a> @@ -1170,7 +1170,7 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # From Jose Miguel Garrido (2008-03-05): # ... -# You could see the announces of the change on +# You could see the announces of the change on # <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm"> # http://www.shoa.cl/noticias/2008/04hora/hora.htm # </a>. -- 1.7.9.5

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Tokelau in wrong time zone?
by Steffen Thorsen July 25, 2012

July 25, 2012

The IANA tz database, Wikipedia, CIA World Fact Book, most time zone web sites and a lot of other sources claim that Tokelau is on UTC+14 (or UTC-10 if they have not corrected for the date line switch in December). However, we got a complaint a few weeks ago, from a user in Tokelau that our Tokelau time on timeanddate.com was one hour ahead of the actual time there. He claimed Tokelau had the same current time as Samoa (UTC+13) at the moment and he worked for the Tokelau Government. This lead us to investigate, we double checked by calling hotels and offices based in Tokelau asking about the time there, and they all told a time that agrees with UTC+13. So it was soon evident that Tokelau is on UTC+13. The next problem was to find when they changed from UTC+14, or if it might have happened as they moved from UTC-10 last December (skipping 23 hours instead of a full day). But sources agreed that there had not been any time change recently, Tokelau does not participate in DST and that the change last December was to skip a full day - and this means that Tokelau was on UTC-11 last year. We found some NZ government sources, saying UTC-11, one being as far back as 2005: http://www.mfat.govt.nz/downloads/foreign-relations/tokelau/tokelau-brochur… says "Local time: GMT –11." One from 2012, but that one has not adjusted for the date line change: http://www.nzte.govt.nz/explore-export-markets/australia-pacific/Documents/… says "Time zone: GMT -11 hours" So, Tokelau has probably been on UTC-11 (or +13) at least since year 2005. This makes me wonder, has Tokelau ever been on UTC-10? Looking in the record for Fakaofo, it says they changed from Local Mean Time in 1901, and then moved the clocks by nearly 85 minutes! I looked through the australasia file and could not find any other location that moved their clocks by more than 1 hour as they went from LMT to a standard time zone or a time zone somehow connected to GMT. (The vast majority adjusted by less than 30 minutes.) Currently we have: (tabs mangled) Zone Pacific/Fakaofo -11:24:56 - LMT 1901 -10:00 - TKT 2011 Dec 30 # Tokelau Time 14:00 - TKT Shanks says UTC-10 from 1901 and is probably the source here. I think there is a good chance the change actually was to UTC-11 back then, and that they have never changed their clocks after that - if not we would need to find some date between 1901 and 2005 that they changed their time zone. Don Higgins, Advisor to the Administrator of Tokelau raised the fact about the wrong time and has contributed significantly to our research. Best regards, Steffen Thorsen - timeanddate.com

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