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[tz-announce] 2013h release of tz code and data available
by Paul Eggert Oct. 26, 2013

Oct. 26, 2013

The 2013h release of the tz code and data is available. It reflects the following changes, which were either circulated on the tz mailing list or are relatively minor technical or administrative changes: Changes affecting current and future time stamps: Libya has switched its time zone back to UTC+2 without DST, instead of UTC+1 with DST. (Thanks to Even Scharning.) Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. (Thanks to Gwillim Law.) Changes affecting future time stamps: Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5 on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe. (Thanks to Steffen Thorsen.) Add entries for DST transitions in Morocco in the year 2038. This avoids some year-2038 glitches introduced in 2013g. (Thanks to Yoshito Umaoka for reporting the problem.) Changes affecting API The 'tzselect' command no longer requires the 'select' command, and should now work with /bin/sh on more platforms. It also works around a bug in BusyBox awk before version 1.21.0. (Thanks to Patrick 'P. J.' McDermott.) Changes affecting code Fix localtime overflow bugs with 32-bit unsigned time_t. zdump no longer assumes sscanf returns maximal values on overflow. Changes affecting the build procedure The builder can specify which programs to use, if any, instead of 'ar' and 'ranlib', and libtz.a is now built locally before being installed. (Thanks to Michael Forney.) A dependency typo in the 'zdump' rule has been fixed. (Thanks to Andrew Paprocki.) The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' work as specified by POSIX.2-1992 or later; this is portable nowadays. 'make clean' no longer removes 'leapseconds', since it's host-independent and is part of the distribution. The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. Changes affecting documentation and commentary tz-link.htm now mentions TC TIMEZONE's draft timezone service protocol (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). Update URLs in tz-link page. Add URLs for Microsoft Windows, since 8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no longer maintained) and for old advisories. SOFA now does C. Here are links to the release files: ftp://ftp.iana.org/tz/releases/tzcode2013h.tar.gz ftp://ftp.iana.org/tz/releases/tzdata2013h.tar.gz The files are also available via HTTP as follows: http://www.iana.org/time-zones/repository/releases/tzcode2013h.tar.gz http://www.iana.org/time-zones/repository/releases/tzdata2013h.tar.gz Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. As usual, links to the latest release files are here: http://www.iana.org/time-zones/repository/tzcode-latest.tar.gz http://www.iana.org/time-zones/repository/tzdata-latest.tar.gz ftp://ftp.iana.org/tz/tzcode-latest.tar.gz ftp://ftp.iana.org/tz/tzdata-latest.tar.gz This release corresponds to commit 52d3619cc1a6503f728f00982f2e77914489e018 dated Fri Oct 25 15:32:32 2013 -0700 and tagged 2013h in the unofficial github repository at <https://github.com/eggert/tz>. Here are the GPG checksums for the release files: -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJSawVsAAoJEO2X6Q5iqn40Qw0QAJYJTRraiTBlK0QWdATqXR/6 McmlESLi/hdLoeylneaTIHRWgTiyuu9OEH3PyGVnFKP1QDKI4E1JeQQ+bOnypBwb O93e+q8VagIlvArc3CDLd9kOnMFFq4TWgW117T7ozi14iA17ClS0S6iPjwieR5Ov W7H+lk6QQroX9R47FxgmYncPBMQ0yfgOhyeHOaj4JBFDJl913palvFuwI/YsrJLj +/KubQ0UyeeHDTZ618B5Dc/IxLXlqaLJu0FF9bWv/oRTOPNo27wltt1I229yTzUs wXMIOwON+639E5pXKMwqgAdnRT3B6Y+H5qAglKD4rR4YAORnD2s3Aobgtvbgz6p5 pjSWQm8wLjIMz/Vvp3MM6f+4Tu1CuOkaiYCcfe55n6DkhSdmJt43A1aQEJfputrc Ya2JIPaKGozWPW0B9a63j7fjU6jf6mg4Mry8/pPedtki4WBqUMi1jwDio7JB8DGa Ym8vUBgFq+AL7r0El6+UZMIYjSX27Ojlww2GxSsOLYsrLYZuzYhOqAhoLXNxn9Cr u4gY016BqJ31VcWrSJ9zRiP+f6qtGjIRHTHzw2t8WXNyMEWPxAOT8adAj2vse0CE mvAG4BwJ3D3XqoLovpmfwhBAzVMIx91Mli3qsCARBk3ot43qgLPJkjDrpzKsLI/g NzvM4dZcjiFbv6xJU83e =1nRy -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJSawVsAAoJEO2X6Q5iqn40Pc8P/0KUlTkaQlz5Plciczq5jKbn rSnC8zeUZnrSHeqhlS+chp2CLoESGeFyKV47evf2E74HfAI7Accsec4QDkomAKQ6 +dmh4uXFtW2RZq5kYlduVXtqRU1fyUFsXFuB3cVeYJVFoRytgysJlKiqGMJdGAR+ 8YtnILEPdMJJluOlyH/KuBg897z9qsI8g0JpRzTyISRee8gxgw8fjYxjbVlnFBFy 0AqfF33oQ1Lgznzwov+8tqPZZ8J+4Bg05LBiKaRbf/KCA42xJkXCHQ2sq2+vPHXU oFMHbAQR1OelxMCsXxFBU+3R8apuhVSXwkZ1uZxO9EAuGo/Tx/4JG0l0n/j902uU m8VNm9Nn57+uaJNkkLn4SkTygdrgNbamr3wkBnlvQW5qIode4Bprcodwu1dxXtEV vfjmERAPMizhAynd+7JDIDgKHkNntooPaKd8y0AYz5IfjuuDoXFBuvoJdhoH8zLh 1LCuR2VhooxDAK8CZ+WV5mfThAcg0fIMrkSQoE2buecG9QJXpFIhzlXHh39RZA5+ eCkDwh644MLfsHplxuogMCIHRwMpIMGYqPBvLLAejqgoJ9ifbxX3g9bJX4cCCRQ/ 3PfUjwj6CsRAvNNX829Oc76WaRd4E/nQJzXXNYcpnQJ00MaADCq14R7ZrABb12/J bDRMACkT0pDfwdia0Q6v =/CFY -----END PGP SIGNATURE----- _______________________________________________ tz-announce mailing list tz-announce(a)iana.org https://mm.icann.org/mailman/listinfo/tz-announce

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Libya cancelled their transition to winter time for 2013
by Even Scharning Oct. 25, 2013

Oct. 25, 2013

The scheduled end of DST in Libya on Friday, October 25, 2013 was cancelled yesterday. So the current time in Libya is one hour ahead of what the time zone database says. Sources: http://pm.gov.ly/news/%D8%AA%D8%BA%D9%8A%D8%B1-%D8%A7%D9%84%D8%AA%D9%88%D9%… http://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/#a… Sincerely, Even Scharning Time.is - exact time for any place on earth http://time.is/

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Libya did not end DST as planned
by Steffen Thorsen Oct. 25, 2013

Oct. 25, 2013

Libya should have ended DST this night, but last evening they decided to cancel this, just hours before the change. They did not say if they will go back later, or if this actually is a changing of time zone. Some sources: http://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/ http://www.edu.gov.ly/4547-%D8%A8%D9%8A%D8%A7%D9%86-%D8%A8%D8%B4%D8%A3%D9%8… (arabic) Our brief summary: http://www.timeanddate.com/news/time/libya-cancels-dst-switch-2013.html Best regards, Steffen Thorsen - timeanddate.com

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Western Sahara
by Gwillim Law Oct. 24, 2013

Oct. 24, 2013

A correspondent who is usually well informed about time zone matters sent me a correction to my time zone data for Western Sahara. He says that Western Sahara observes daylight saving time, just as Morocco does. The tz database shows it as Africa/El_Aaiun with no DST. The status of Western Sahara is disputed, but Morocco has de facto control over some 80% of the territory, including El Aaiun (a.k.a. Laâyoune). It seems logical that the clocks would be set to the same time as Morocco. For what it's worth, the CIA World Factbook says that in Western Sahara, DST "begins last Sunday in April; ends last Sunday in September." If it can be confirmed that El Aaiun's time is the same as Morocco's, the Zone info for Africa/El_Aaiun should be changed to match Africa/Casablanca, at least after 1991-09-06 (the date of the cease-fire that ended the Western Sahara War), and possibly as far back as 1976-02-20 (the date when Spain abandoned its possessions there). Gwillim Law

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[PATCH 1/2] zdump: remove unportable assumption about sscanf and overflow
by Paul Eggert Oct. 21, 2013

Oct. 21, 2013

* zdump.c (strtoimax) [!INTMAX_MAX]: Define like private.h does. (SCNdMAX): Remove; no longer used. (main): Use strtoimax, not sscanf with SCNdMAX, as strtoimax has well-defined behavior when the input number is out of numeric range. --- zdump.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/zdump.c b/zdump.c index 2a9860c..209b79d 100644 --- a/zdump.c +++ b/zdump.c @@ -59,6 +59,7 @@ typedef int int_fast32_t; #ifndef INTMAX_MAX # if defined LLONG_MAX || defined __LONG_LONG_MAX__ typedef long long intmax_t; +# define strtoimax strtoll # define PRIdMAX "lld" # ifdef LLONG_MAX # define INTMAX_MAX LLONG_MAX @@ -67,13 +68,11 @@ typedef long long intmax_t; # endif # else typedef long intmax_t; +# define strtoimax strtol # define PRIdMAX "ld" # define INTMAX_MAX LONG_MAX # endif #endif -#ifndef SCNdMAX -# define SCNdMAX PRIdMAX -#endif #ifndef ZDUMP_LO_YEAR @@ -368,16 +367,19 @@ main(int argc, char *argv[]) if (vflag | Vflag) { intmax_t lo; intmax_t hi; - char dummy; + char *loend, *hiend; register intmax_t cutloyear = ZDUMP_LO_YEAR; register intmax_t cuthiyear = ZDUMP_HI_YEAR; if (cutarg != NULL) { - if (sscanf(cutarg, "%"SCNdMAX"%c", &hi, &dummy) == 1) { + lo = strtoimax(cutarg, &loend, 10); + if (cutarg != loend && !*loend) { + hi = lo; + cuthiyear = hi; + } else if (cutarg != loend && *loend == ',' + && (hi = strtoimax(loend + 1, &hiend, 10), + loend + 1 != hiend && !*hiend)) { + cutloyear = lo; cuthiyear = hi; - } else if (sscanf(cutarg, "%"SCNdMAX",%"SCNdMAX"%c", - &lo, &hi, &dummy) == 2) { - cutloyear = lo; - cuthiyear = hi; } else { (void) fprintf(stderr, _("%s: wild -c argument %s\n"), progname, cutarg); @@ -389,14 +391,17 @@ main(int argc, char *argv[]) cuthitime = yeartot(cuthiyear); } if (cuttimes != NULL) { - if (sscanf(cuttimes, "%"SCNdMAX"%c", &hi, &dummy) == 1) { + lo = strtoimax(cuttimes, &loend, 10); + if (cuttimes != loend && !*loend) { + hi = lo; if (hi < cuthitime) { if (hi < absolute_min_time) hi = absolute_min_time; cuthitime = hi; } - } else if (sscanf(cuttimes, "%"SCNdMAX",%"SCNdMAX"%c", - &lo, &hi, &dummy) == 2) { + } else if (cuttimes != loend && *loend == ',' + && (hi = strtoimax(loend + 1, &hiend, 10), + loend + 1 != hiend && !*hiend)) { if (cutlotime < lo) { if (absolute_max_time < lo) lo = absolute_max_time; -- 1.8.3.2

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Acre, Brazil time zone change passed in Senate, waiting for President
by Steffen Thorsen Oct. 17, 2013

Oct. 17, 2013

According to multiple news sources, Acre and some western parts of Amazonas will probably change time zone later this year, going one hour back. The change has been approved in the senate, but the president could veto it, but that is unlikely to happen. The date for the change is not yet announced. Some sources in Portuguese: http://g1.globo.com/ac/acre/noticia/2013/10/senado-aprova-mudanca-de-fuso-h… http://agenciabrasil.ebc.com.br/noticia/2013-10-08/senado-aprova-projeto-qu… http://www.oriobranco.net/concursos/34175-acre-e-uma-parte-do-amazonas-deve… Our short summary, in English: http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html Best regards, Steffen Thorsen - timeanddate.com

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Antarctica/McMurdo
by Wolfgang Pausch Oct. 16, 2013

Oct. 16, 2013

Hello, in my application, I used Antarctica/McMurdo in some test case. In version 2013d, file antarctica contained an entry # # # McMurdo, Ross Island, since 1955-12 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/McMurdo 0 - zzz 1956 12:00 NZAQ NZ%sT which is gone in version 2013g. However, McMurdo is still referenced both in australasia in a link, and in the zone.tab file: ~/tmp/tzdata$ grep McMurdo * antarctica:# "in the US Camp (East Camp) we have been on New Zealand (McMurdo) antarctica:# McMurdo Station, Ross Island, since 1955-12 antarctica:# as supplies for the station were coming from McMurdo Sound, antarctica:# We use the same time as McMurdo does. antarctica:# See 'australasia' for Antarctica/McMurdo. australasia:Link Pacific/Auckland Antarctica/McMurdo zone.tab:AQ -7750+16636 Antarctica/McMurdo McMurdo, South Pole, Scott (New Zealand time) ~/tmp/tzdata$ I guess this is a inconsistency in the tzdata files...? Wolfgang

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Re: [tz] draft-douglass-timezone-service-08
by Julian Cable Oct. 9, 2013

Oct. 9, 2013

Odd. I will contact them directly. Julian On 9 Oct 2013, at 07:41, "Paul Eggert" <eggert(a)cs.ucla.edu> wrote: > Julian Cable wrote: >> I assume Mike Douglass and Cyrus Daboo subscribe to this list? > > My guess is not, since they haven't posted here. ----------------------------- http://www.bbc.co.uk This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this. -----------------------------

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draft-douglass-timezone-service-08
by Julian Cable Oct. 8, 2013

Oct. 8, 2013

Hi Paul, thanks for referencing this, I hadn't spotted it until now. I assume Mike Douglass and Cyrus Daboo subscribe to this list? Great work - at first read the only thought I had was that JSONP should be supported. Cheers Julian ----------------------------- http://www.bbc.co.uk This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this. -----------------------------

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Time zones in the news
by Arthur David Olson Oct. 8, 2013

Oct. 8, 2013

>From The Economist, "What's the time in Antarctica?" http://www.economist.com/blogs/economist-explains/2013/10/economist-explain… @dashdashado

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