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Suggestion for addition of America/Brasilia entry to time zone database
by Gabriel Gaspar Oct. 19, 2016

Oct. 19, 2016

Hello there, and sorry for the intrusion. I presently write to this list with a suggestion for addition of an entry in the time zone database, America/Brasilia, or at least for a clarification on why there may not be one. Being the standard official time in Brazil, I firmly believe there should be one such entry (unless, of course, matters of greater power disallow it). The official time used in Brazil is called "the Brasilia official time" (UTC -3:00), Brasilia being the capital of Brazil. Note that the official country name is Brasil, with an 's', and the official capital name is Brasília, with an acute on the first 'i'. I am writing the country name with 'z' and leaving the aforementioned acute out for internationalization purposes. Inside Brazilian territory, the remainder time zones are usually referred and adjusted having Brasilia time as a referential base, e.g. "Brasilia time +1", "Brasilia time -1" etc. Even more, event times in Brazil (games, DST start/end, official announcements) are all informed, be it via government official channels or mass media, in Brasilia's official time, further evidencing the importance of Brasilia as a reference for setting times inside country territory. That being said, I have always wondered why it is that Brasilia is not listed as one of the time zones in the data base for South America. It is the official time for Brazil and the name does not clash with any other name in the database (America/Brasilia). Instead, it is relegated to an indirect mention, (Brasilia is located inside Distrito Federal (DF)), in a comment for the time zone America/Sao_Paulo. São Paulo is a major city in Brazil, but by no means the capital itself, nor does it retain any authoritative power in setting or representing the official time, which Brasilia does. Actually, the America/Sao_Paulo time zone entry seems to be doing what an America/Brasilia time zone entry should be doing. Thus, my suggestion would be either for the addition of something such as America/Brasilia to the time zone database, or for the renaming of America/Sao_Paulo to America/Brasilia in order to more accurately represent what that time zone entry stands for. The former suggestion would add more information to the database, but other than occupying more space I fail to see further problems with that addition. The latter suggestion could break some scripts that rely on the time zone name for correct operation, although I currently have no knowledge of one such script nor how crucial its operation could be. Without further ado, I thank you for the time to read this, and appreciate the time for such considerations. Regards, Gabriel G. Gaspar

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Crimea status
by Adam Golovenko Oct. 15, 2016

Oct. 15, 2016

Hello, last time I used data from unicode.org which use time zone information from your time zones database. I found one moment: RU +4457+03406 Europe/Simferopol MSK+00 - Crimea Timezone "Europe/Simferopol" (and Simferopol city itself) should belong to Ukraine (UA), not Russia (RU). Crimea, as temporary occupied area in all international documents states as ukrainian territory. More details can be found here: http://usa.mfa.gov.ua/en/legal_aspects https://en.wikipedia.org/wiki/United_Nations_General_Assembly_Resolution_68… It's not political position or some other sort of things to argue with. In this case one country (Russia) temporarily occupied part of another country (Ukraine), but no countries except Russia itself treat it legal. So UN with most votes (countries) decided to treat Crimea still as a part of Ukraine and this position should be used for all international materials and communications. Please make changes to your data, returning Europe/Simferopol to correct country. Otherwise ukrainian government (if officially notified) will insist on making changes in documents in juridical manner (there were some precedents with Coca-Cola company, french national maps agency and several more). Thanks in advance, will be glad to receive a responce!

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New shapefile of world's timezones based off of Open Street Map data
by Evan Siroky Oct. 11, 2016

Oct. 11, 2016

Hello All, I have just made a first release of a shapefile of the geographic extent of the timezone database based mostly off of Open Street Map data. All of the borders between countries, states and cities come directly from Open Street Map. This shapefile also includes the territorial waters of countries as defined in Open Street Map. Please see my github project for more details. The shapefile can be found in the project releases. https://github.com/evansiroky/timezone-boundary-builder Evan.

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[PROPOSED PATCH] * tz-link.htm: Add section IDs.
by Paul Eggert Oct. 11, 2016

Oct. 11, 2016

--- tz-link.htm | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/tz-link.htm b/tz-link.htm index ed926c7..43188a4 100644 --- a/tz-link.htm +++ b/tz-link.htm @@ -10,7 +10,7 @@ content="Sources for time zone and daylight saving time data"> <meta name="DC.Creator" content="Eggert, Paul"> <meta name="DC.Contributor" content="Olson, Arthur David"> -<meta name="DC.Date" content="2016-09-21"> +<meta name="DC.Date" content="2016-10-11"> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time"> <meta name="DC.Identifier" @@ -27,7 +27,7 @@ histories and planned futures are often recorded only fitfully. Here is a summary of attempts to organize and record relevant data in this area. </p> -<h2>The <code><abbr title="time zone">tz</abbr></code> database</h2> +<h2 id="tzdb">The <code><abbr title="time zone">tz</abbr></code> database</h2> <p> The <a href="https://en.wikipedia.org/wiki/Public_domain">public-domain</a> time zone database contains code and data @@ -152,7 +152,7 @@ The code lets you compile the <code><abbr>tz</abbr></code> source files into machine-readable binary files, one for each location. It also lets you read a <code><abbr>tz</abbr></code> binary file and interpret time stamps for that location.</p> -<h2>Changes to the <code><abbr>tz</abbr></code> database</h2> +<h2 id="changes">Changes to the <code><abbr>tz</abbr></code> database</h2> <p> The <code><abbr>tz</abbr></code> code and data are by no means authoritative. If you find errors, please @@ -194,7 +194,7 @@ For further information about updates, please see <a href="https://tools.ietf.org/html/rfc6557">Procedures for Maintaining the Time Zone Database</a> (Internet <abbr title="Request For Comments">RFC</abbr> 6557).</p> -<h2>Commentary on the <code><abbr>tz</abbr></code> database</h2> +<h2 id="commentary">Commentary on the <code><abbr>tz</abbr></code> database</h2> <ul> <li>The article <a href="https://en.wikipedia.org/wiki/Tz_database">tz database</a> is @@ -212,7 +212,8 @@ href="https://blog.jonudell.net/2009/10/23/a-literary-appreciation-of-the-olsonz literary appreciation of the Olson/Zoneinfo/tz database</a> comments on the database's style.</li> </ul> -<h2>Web sites using recent versions of the <code><abbr>tz</abbr></code> database</h2> +<h2 id="web">Web sites using recent versions of the +<code><abbr>tz</abbr></code> database</h2> <p> These are listed roughly in ascending order of complexity and fanciness. </p> @@ -242,7 +243,7 @@ calculates the current time difference between locations.</li> also contains data about time zone boundaries; it supports queries via place names and shows location maps.</li> </ul> -<h2>Network protocols for <code><abbr>tz</abbr></code> data</h2> +<h2 id="protocols">Network protocols for <code><abbr>tz</abbr></code> data</h2> <ul> <li>The <a href="https://www.ietf.org">Internet Engineering Task Force</a>'s <a href="https://datatracker.ietf.org/wg/tzdist/charter/">Time Zone Data @@ -267,7 +268,7 @@ title="Extensible Markup Language">XML</abbr></a> format, and a variant uses <a href="http://www.json.org"><abbr title="JavaScript Object Notation">JSON</abbr></a> format.</li> </ul> -<h2>Other <code><abbr>tz</abbr></code> compilers</h2> +<h2 id="compilers">Other <code><abbr>tz</abbr></code> compilers</h2> <ul> <li><a href="https://sourceforge.net/projects/vzic/">Vzic</a> is a <a href="https://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> @@ -390,7 +391,7 @@ source into text files, along with a runtime that can read those files. Tcl is freely available under a <abbr>BSD</abbr>-style license.</li> </ul> -<h2>Other <code><abbr>tz</abbr></code> binary file readers</h2> +<h2 id="binary">Other <code><abbr>tz</abbr></code> binary file readers</h2> <ul> <li>The <a href="https://www.gnu.org/software/libc/"><abbr>GNU</abbr> C @@ -439,7 +440,7 @@ package contains <a href="https://www.haskell.org">Haskell</a> code that parses and uses <code><abbr>tz</abbr></code> binary data. It is freely available under a <abbr>BSD</abbr>-style license.</li> </ul> -<h2>Other <code><abbr>tz</abbr></code>-based time zone software</h2> +<h2 id="software">Other <code><abbr>tz</abbr></code>-based time zone software</h2> <ul> <li><a href="https://foxclocks.org">FoxClocks</a> is an extension for <a href="https://www.google.com/chrome/">Google @@ -496,7 +497,7 @@ an <abbr>OS X</abbr> program. Its developers <a href="http://veladg.com/tzoffer.html">offer free licenses</a> to <code><abbr>tz</abbr></code> contributors.</li> </ul> -<h2>Other time zone databases</h2> +<h2 id="other-dbs">Other time zone databases</h2> <ul> <li><a href="http://www.astro.com/atlas">Time-zone Atlas</a> is Astrodienst's Web version of Shanks and Pottenger's @@ -525,7 +526,7 @@ Schedules Information Manual</a> of the International Air Transport Association gives current time zone rules for airports served by commercial aviation.</li> </ul> -<h2>Maps</h2> +<h2 id="maps">Maps</h2> <ul> <li>The <a href="https://www.cia.gov/index.html">United States Central Intelligence Agency (<abbr @@ -552,7 +553,7 @@ much is time wrong around the world?</a> maps the difference between mean solar and standard time, highlighting areas such as western China where the two differ greatly. It's a bit out of date, unfortunately.</li> </ul> -<h2>Time zone boundaries</h2> +<h2 id="boundaries">Time zone boundaries</h2> <ul> <li><a href="http://efele.net/maps/tz/"><abbr>TZ</abbr> timezones maps</a> contains <a @@ -589,7 +590,7 @@ for land and territorial waters only). A captain can change ship's clocks any time after entering a new time zone; midnight changes are common.</li> </ul> -<h2>Civil time concepts and history</h2> +<h2 id="civil">Civil time concepts and history</h2> <ul> <li><a href="http://physics.nist.gov/time">A Walk through Time</a> @@ -609,7 +610,7 @@ time zone boundary.</li> <li><a href="http://statoids.com/tconcept.html">Basic Time Zone Concepts</a> discusses terminological issues behind time zones.</li> </ul> -<h2>National histories of legal time</h2> +<h2 id="national">National histories of legal time</h2> <dl> <dt>Australia</dt> <dd>The Parliamentary Library has commissioned a <a @@ -679,7 +680,7 @@ of Summer time dates</a>.</dd> href="https://www.transportation.gov/regulations/recent-time-zone-proceedings">Recent Time Zone Proceedings</a> lists changes to time zone boundaries.</dd> </dl> -<h2>Precision timekeeping</h2> +<h2 id="precision">Precision timekeeping</h2> <ul> <li><a href="http://literature.agilent.com/litweb/pdf/5965-7984E.pdf">The @@ -752,7 +753,7 @@ might be redefined without Leap Seconds</a> gives pointers on this contentious issue.</li> </ul> -<h2>Time notation</h2> +<h2 id="notation">Time notation</h2> <ul> <li>The <a href="http://cldr.unicode.org">Unicode Common Locale Data Repository (<abbr>CLDR</abbr>) Project</a> has localizations for time @@ -826,7 +827,7 @@ any future changes to the rules. One should never set local time is nine hours ahead of <abbr>UTC</abbr> and the time zone is called "<abbr>GMT</abbr>".</li> </ul> -<h2>See also</h2> +<h2 id="see-also">See also</h2> <ul> <li><a href="tz-art.htm">Time and the Arts</a></li> </ul> -- 2.7.4

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Adapting localtime.c
by Carsten Larsen Oct. 10, 2016

Oct. 10, 2016

Hello list I am trying to adapt the tz code to a local system without any timezone database (AmigaOS). I got the code up and running and everything seems to work as intended. But one thing about the code puzzles me. I need to implement "time_t time(time_t *p)" which is the very last part of localtime.c. Should this code return time as local time or as GMT time ? Because I cannot get the time calculations to work properly. I use tzsetwall() to guess the timezone from the systems locale zone information (GMT+1, etc) and tzset() to load timezone from the TZ environment variable. Should "time_t time(time_t *p)" try to compensate if lclptr is set, or should it always just return the plain system time? I hope someone knows the answer and also thank you for any clarifications on this issue. Kind regards Carsten Larsen

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TimeZone
by Ali Emre Gürsu Oct. 9, 2016

Oct. 9, 2016

Hello there, Is there any know tool or way to read and check your binary timezone files that you upload? Thanks for the work, great job. Best Regards, Ali Emre Gürsu

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Re: [tz] New shapefile of world' s timezones based off of Open Street Map data
by Evan Siroky Oct. 8, 2016

Oct. 8, 2016

I got really worried for a second wondering if I had misspelled the Rankin_Inlet timezone name, but looks like I'm good! Whew. Thanks for your compliment and suggestion.

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tzdata2016g.tar.gz\Makefile has a bug
by Help rtds.ru Oct. 7, 2016

Oct. 7, 2016

Hello. "Makefile" from tzdata2016g.tar.gz has the line: Version= unknown I think this is a bug. At least, it disrupts Oracle's tzupdater (ver.2.1.0). -- Best regards, *Nikotin Sergey* IT Dept *GK RTDService * Russia, 117393, Moscow, Obrucheva st., 52/69. phone: +7 (495) 718-66-77 e-mail: help(a)rtds.ru <mailto:help@rtds.ru> web: www.rtds.ru

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zic: symlink generation issue
by Andreas Stieger Oct. 6, 2016

Oct. 6, 2016

Hello, on openSUSE we are seeing issues generating symlinks after replacing our distribution specific patches with the upstream code: $ rm /etc/localtime $ ln -s /usr/share/zoneinfo/Europe/London /etc/localtime $ ls -l /etc/localtime lrwxrwxrwx 1 root root 33 Oct 6 12:47 /etc/localtime -> /usr/share/zoneinfo/Europe/London $ zic -l Europe/Berlin $ ls -l /etc/localtime lrwxrwxrwx 1 root root 19 Oct 6 11:47 /etc/localtime -> ../../Europe/Berlin resulting in a broken symbolic link. The previous code supplied relname(), and in dolink() instead of calculating the dotdots using fromfield/tofield we used fromname/toname, respectively. I though I'd let you know while we are working on this, in case you have a quick fix. Otherwise we'll attempt to upstream what we come up with. Andreas -- Andreas Stieger <astieger(a)suse.com> Project Manager Security SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)

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zic: symlink generation issue
by Andreas Stieger Oct. 6, 2016

Oct. 6, 2016

Hello, on openSUSE we are seeing issues generating symlinks after replacing our distribution specific patches with the upstream code: $ rm /etc/localtime $ ln -s /usr/share/zoneinfo/Europe/London /etc/localtime $ ls -l /etc/localtime lrwxrwxrwx 1 root root 33 Oct 6 12:47 /etc/localtime -> /usr/share/zoneinfo/Europe/London $ zic -l Europe/Berlin $ ls -l /etc/localtime lrwxrwxrwx 1 root root 19 Oct 6 11:47 /etc/localtime -> ../../Europe/Berlin resulting in a broken symbolic link. The previous code supplied relname(), and in dolink() instead of calculating the dotdots using fromfield/tofield we used fromname/toname, respectively. I though I'd let you know while we are working on this, in case you have a quick fix. Otherwise we'll attempt to upstream what we come up with. Andreas -- Andreas Stieger <astieger(a)suse.de> Project Manager Security SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)

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