March 2013 - tz - lists.iana.org

windows [MSVC] port progress
by random832＠fastmail.us March 13, 2013

March 13, 2013

I've made a makefile that can build the library functions (64-bit time_t only, and haven't done anything yet about MSVCRT functions showing up through names that tzcode doesn't define such as localtime_s or _ftime [or the 32-bit names]), and successfully compiled zdump. I was wondering if anyone had any ideas which approach would be best for implementing the 32-bit functions. Some background: MSVC defines two sets of time functions: for 32-bit and 64-bit time_t. But some functions (e.g. tzset and strftime) are shared between them. (VC2003 defines the default names as 32-bit, and I don't know if VC6 has the 64-bit functions at all - making it work on these versions may be somewhat more difficult) I could: A. Compile separate 32 and 64 bit versions of the library (what happens if a single program tries to call both?) B. Compile a single library with 32 and 64 bit versions of functions, a custom tzset function that calls both (this will pull in most of the 64-bit library when compiling a 32-bit program, but I can avoid pulling in the 32-bit objects when compiling a 64-bit program) C. Write wrapper 32-bit functions for 64-bit functions - a bit less bloated than solution B, but more work. D. ??? I want to eventually customize tzset anyway, to get the local time zone from the system settings when TZ is not set (CLDR contains a mapping from Windows time zone names to tzdata ones). Speaking of which, does anyone on the list have a non-English version of Windows to test something with?

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DST in the news
by Arthur David Olson March 12, 2013

March 12, 2013

After the weekend start of DST in the US, "Metro riders pay for extended peak period" per the Washington (DC) Post: http://www.washingtonpost.com/local/trafficandcommuting/metro-riders-pay-fo… @dashdashado

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[PATCH] Update URLs in tz-link page.
by Paul Eggert March 11, 2013

March 11, 2013

* tz-link.htm: Add URLs for webOS, BB10, iOS. Update URL for Solaris. Mention Internet RFC 6557. Update Internet RFCs 2445->5545, 2822->5322. Switch from FTP to HTTP for Internet RFCs. --- tz-link.htm | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/tz-link.htm b/tz-link.htm index 67b2433..5e24fed 100644 --- a/tz-link.htm +++ b/tz-link.htm @@ -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="2013-02-21"> +<meta name="DC.Date" content="2013-03-11"> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time"> <meta name="DC.Identifier" @@ -37,8 +37,8 @@ is used by several implementations, including <a href="http://www.gnu.org/software/libc/">the <abbr title="GNU's Not Unix">GNU</abbr> -C Library</a> used in -<a href="http://www.linux.org/"><abbr>GNU</abbr>/Linux</a>, +C Library</a> (used in +<a href="http://www.linux.org/"><abbr>GNU</abbr>/Linux</a>), <a href="http://www.android.com/">Android</a>, <a href="http://www.freebsd.org/">FreeBSD</a>, <a href="http://netbsd.org/">NetBSD</a>, @@ -46,11 +46,14 @@ C Library</a> used in <a href="http://cygwin.com/">Cygwin</a>, <a href="http://www.delorie.com/djgpp/"><abbr title="DJ's GNU Programming Platform">DJGPP</abbr></a>, +<a href="http://en.wikipedia.org/wiki/WebOS">webOS</a>, <a href="http://ibm.com/aix">AIX</a>, +<a href="http://en.wikipedia.org/wiki/BlackBerry_10">BlackBerry 10</a>, +<a href="http://www.apple.com/ios/">iOS</a>, <a href="http://h71000.www7.hp.com/">OpenVMS</a>, <a href="http://oracle.com/database">Oracle Database</a>, <a href="http://www.apple.com/osx/">OS X</a>, -<a href="http://sun.com/software/solaris">Solaris</a>, +<a href="http://oracle.com/solaris">Solaris</a>, <a href="http://h30097.www3.hp.com/">Tru64</a>, and <a href="http://sco.com/products/unixware">UnixWare</a>.</p> <p> @@ -123,7 +126,10 @@ messages</a> sent to the mailing list, <a href="https://mm.icann.org/mailman/listinfo/tz">subscribe</a> to it, and browse the <a href="http://mm.icann.org/pipermail/tz/">archive of old -messages</a>.</p> +messages</a>. For further information about updates, please see +<a href="http://tools.ietf.org/html/rfc6557">Procedures for +Maintaining the Time Zone Database</a> (Internet <abbr title="Request +For Comments">RFC</abbr> 6557).</p> <p> The Web has several other sources for time zone and daylight saving time data. Here are some links that may be of interest. @@ -159,14 +165,9 @@ tz data files.</li> </ul> <h2>Other time zone database formats</h2> <ul> -<li>The <a href="ftp://ftp.rfc-editor.org/in-notes/rfc2445.txt"> +<li>The <a href="http://tools.ietf.org/html/rfc5545"> Internet Calendaring and Scheduling Core Object Specification -(iCalendar)</a>, Internet <abbr title="Request For -Comments">RFC</abbr> 2445, published by the (now-concluded) <a -href="http://ietf.org/html.charters/OLD/calsch-charter.html"><abbr -title="Internet Engineering Task Force">IETF</abbr> -Calendaring and Scheduling Working Group (<abbr -title="Calendaring and Scheduling Working Group">calsch</abbr>)</a> +(iCalendar)</a>, Internet <abbr>RFC</abbr> 5445 covers time zone data; see its VTIMEZONE calendar component. <a href="http://calconnect.org/">CalConnect, The Calendaring and Scheduling @@ -513,7 +514,7 @@ Time Protocol</a> discusses how to synchronize clocks of Internet hosts.</li> <li><a -href="ftp://ftp.rfc-editor.org/in-notes/rfc4833.txt">Timezone +href="http://tools.ietf.org/html/rfc4833">Timezone Options for <abbr title="Dynamic Host Configuration Protocol">DHCP</abbr></a> (Internet <abbr>RFC</abbr> 4833) specifies a <a @@ -590,13 +591,13 @@ interchange -- Representation of dates and times</a>.</li> Schema: Datatypes - dateTime</a> specifies a format inspired by <abbr>ISO</abbr> 8601 that is in common use in XML data.</li> <li> -<a href="ftp://ftp.rfc-editor.org/in-notes/rfc2822.txt">Internet -Message Format</a> (Internet <abbr>RFC</abbr> 2822) §3.3 +<a href="http://tools.ietf.org/html/rfc5322">Internet +Message Format</a> (Internet <abbr>RFC</abbr> 5322) §3.3 specifies the time notation used in email and <a -href="ftp://ftp.rfc-editor.org/in-notes/rfc2616.txt"><abbr>HTTP</abbr></a> +href="http://tools.ietf.org/html/rfc2616"><abbr>HTTP</abbr></a> headers.</li> <li> -<a href="ftp://ftp.rfc-editor.org/in-notes/rfc3339.txt">Date and Time +<a href="http://tools.ietf.org/html/rfc3339">Date and Time on the Internet: Timestamps</a> (Internet <abbr>RFC</abbr> 3339) specifies an <abbr>ISO</abbr> 8601 profile for use in new Internet -- 1.7.10.4

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Re: [tz] Haiti on DST
by Steve Jones March 10, 2013

March 10, 2013

At 09:33 3/10/2013, Steffen Thorsen wrote: >It appears that Haiti is observing DST this year as well, same rules >as US/Canada. >They did it last year as well, and it looks like they are going to >observe DST every year... So, the island of Hispaniola is divided in its DST observance. The Dominican Republic does not observe DST. Before this change, crossing the Haiti/DR border meant a transition between UTC-4 and UTC-5 all year long. Now, during DST, they are both UTC-4. Regards, Steve Jones OnTimeZone.com

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Ukraine Time Change
by Wong Ren March 10, 2013

March 10, 2013

Alexander Krivenyshev had written: "The Ministry of Economic Development and Trade of Ukraine has submitted a bill to abolish the daylight saving time. If approved, new bill will go into effect on March 1, 2013 and Ukraine will use UTC+2 year around" Does anyone know what will be new time zone abbreviation since Ukraine used to have EET ? Also, the tz2013a does not have the Ukraine time change, was the bill approved and any update soon? Regards, Ren Wong ________________________________ "This e-mail message may contain confidential, commercial or privileged information that constitutes proprietary information of Comverse Technology or its subsidiaries. If you are not the intended recipient of this message, you are hereby notified that any review, use or distribution of this information is absolutely prohibited and we request that you delete all copies and contact us by e-mailing to: security(a)comverse.com. Thank You."

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Cuba DST start as US/Canada
by Steffen Thorsen March 9, 2013

March 9, 2013

FYI: Granma, the official organ of the government confirms a 2013-03-10 DST start this year. The database already assumes this, so no change is necessary, but Cuba has had different rules the past two years, so it was not obvious that this would be the start date this year. http://www.granma.cubaweb.cu/2013/03/04/nacional/artic10.html Best regards, Steffen Thorsen - timeanddate.com

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Re: [tz] tzcode for windows?
by random832＠fastmail.us March 8, 2013

March 8, 2013

On Fri, Mar 8, 2013, at 15:53, Arthur David Olson wrote: > > Haven't looked at zdump yet, and it's less useful without the library > > functions anyway. > > In theory at least, zdump is independent of everything else in the package; > > as long as the functions it calls are available all should be well. Well, yes, but it's just dumping the MSVC implementation of timezones, which is less useful than if I could get it to link against the tzcode library. I did have to switch from environ-manipulation to putenv (need to make it do that conditionally then I'll make a patch) and call tzset. How exactly was it working before without ever calling tzset? Am I missing something? Or is it just that most unix implementations, and the tzcode implementation, happen to be tolerant of calling localtime without calling tzset?

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Timezones Morocco 2013 incorrect
by Erik Homoet March 7, 2013

March 7, 2013

Hi, For our internet airline booking engine of flights we¹re using the tzdata2012j version. In this version the DST timing for Morroco is not correct. We¹re facing a lot of problems because of this, this because a large amount of flights are departing from Morocco between 23:00 and 24:00. Morocco is also on Wintertime during the month of Ramadan. The correct timezone should be: WET DST starts on Sunday, 28 April 2013, 02:00 local standard time. DST ends on Tuesday, 9 July 2013, 03:00 local daylight time. DST starts on Thursday, 8 August 2013, 02:00 local standard time. DST ends on Sunday, 29 September 2013, 03:00 local daylight time. Source: http://www.timeanddate.com/worldclock/city.html?n=60 Would you please be so kind to give me an indication when this can be changed? Best regards and thanks, Erik Erik Homoet Business Consultant quintessence consulting AMS mobile: +31 614534022 email: ehomoet(a)quintessence.net skype: erik_qc_ams

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dead code in zic
by christos＠zoulas.com March 7, 2013

March 7, 2013

On LP32 machines, the following code is dead: dayoff is long min_time is zic_t -> int_fast64_t if (dayoff < min_time / SECSPERDAY) { error(_("time too small")); return; } if (dayoff > max_time / SECSPERDAY) { error(_("time too large")); return; } The vax gcc-4.1 detects this; later versions of gcc don't. But all of them will warn, if you change min_time and max_time from const zic_t to #define's. What's the correct fix here? http://releng.netbsd.org/builds/HEAD/201303041020Z/vax.build.failed christos

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Paraguay may move out of DST earlier this year
by Carlos Raúl Perasso March 6, 2013

March 6, 2013

The Paraguayan Electric Company (ANDE) plans to move out of DST a couple of weeks earlier this year. There is nothing final yet. An article from a local newspaper: http://www.abc.com.py/nacionales/ande-quiere-adelantar-el-atraso-de-los-rel… I'll will report changes on this subject. Carlos Perasso

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