July 2013 - tz - lists.iana.org

minor problem in www.iana.org
by Denis Excoffier July 8, 2013

July 8, 2013

Hello, The file http://www.iana.org/time-zones/repository/releases/tzcode2013c.tar.gz indicated in http://www.iana.org/time-zones as being of size 132.4kb is in fact in un-gzipped format and its size is 522240 bytes (i mean: this is the file i get when i wget the path). For the content of it, no problem. Same for tzdata. I suppose that this has been correct at the end of April, since my personal copy has the right format (and small size). Regards, Denis Excoffier.

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morroco infos
by Sebastien WILLEMIJNS July 7, 2013

July 7, 2013

Hello, i think you know that but it can be useful (fr text) http://biladi.ma/1138865-retour-gmt-le-maroc-de-prepare-au-ramadan.html

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tz-announce list is incorrectly configured
by Alan Barrett July 7, 2013

July 7, 2013

Once again, a message has appeared on the tz-announce list without also appearing on the tz list. In this case, it was an announcement that the 2013d releases of txcode and tzdata are available. Please could the tz-announce list be configured such that it is impossible for a message to go to tz-announce(a)iana.org without also going to tz(a)iana.org. tz-announce was always intended to carry a subset of the messages sent to the tz list, not to carry some disjoint or partially-overlapping set of messages. It's unreasonable to expect readers to subscribe to both lists in order to see all messages, and it's also unreasonable to expect people who send announcements to CC both lists to ensure that the tz list receives all messages. This really should be fixed at the mailing list server side. --apb (Alan Barrett)

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[PATCH] Update link page.
by Paul Eggert July 3, 2013

July 3, 2013

* tz-link.htm: Add commentary section. Update URLs and titles. Add links to Firefox OS, Bill Seymour's intro, Jon Udell's appreciation, W3C's "Working with Time Zones". --- tz-link.htm | 41 ++++++++++++++++++++++++++++------------- 1 file changed, 28 insertions(+), 13 deletions(-) diff --git a/tz-link.htm b/tz-link.htm index 008946e..9eea060 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="2013-05-10"> +<meta name="DC.Date" content="2013-07-03"> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time"> <meta name="DC.Identifier" @@ -31,8 +31,7 @@ href="http://en.wikipedia.org/wiki/Coordinated_Universal_Time"><abbr title="Coordinated Universal Time">UTC</abbr></a> offsets, and <a href="http://en.wikipedia.org/wiki/Daylight_saving">daylight-saving</a> rules. -This database (often called <code>zoneinfo</code> or <a -href="http://en.wikipedia.org/wiki/Tz_database"><code>tz</code></a>) +This database (often called <code>zoneinfo</code> or <code>tz</code>) is used by several implementations, including <a href="http://www.gnu.org/software/libc/">the @@ -40,6 +39,8 @@ including 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="https://developer.mozilla.org/en-US/docs/Mozilla/Firefox_OS">Firefox +OS</a>, <a href="http://www.freebsd.org/">FreeBSD</a>, <a href="http://netbsd.org/">NetBSD</a>, <a href="http://openbsd.org/">OpenBSD</a>, @@ -134,6 +135,17 @@ For Comments">RFC</abbr> 6557).</p> The Web has several other sources for time zone and daylight saving time data. Here are some links that may be of interest. </p> +<h2>Commentary on the <code>tz</code> database</h2> +<ul> +<li>The article +<a href="http://en.wikipedia.org/wiki/Tz_database">tz database</a> is +an encyclopedic summary.</li> +<li><a href="http://www.cstdbill.com/tzdb/tz-how-to.html">How to Read the +tz Database Source Files</a> explains the tz database format.</li> +<li><a href="http://blog.jonudell.net/2009/10/23/a-literary-appreciation-of-the-olsonzon…">A +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>tz</code> database</h2> <p> These are listed roughly in ascending order of complexity and fanciness. @@ -176,8 +188,8 @@ href="http://calconnect.org/publications/icalendartimezoneproblemsandrecommendat TIMEZONE Problems and Recommendations</a> offers guidelines and recommendations for the use of VTIMEZONE and <code>tz</code>.</li> <li><a href="http://calconnect.org/dstlinks.shtml">Extended Daylight -Saving Time Links, Advisories and Changes</a> lists vendor material on recent -daylight saving time changes.</li> +Saving Time Links, Advisories and Changes</a> lists vendor material on 2007 +U.S. daylight saving time changes.</li> <li><a href="http://calconnect.org/publications/timezoneregistryandservicerecommendation…">Timezone Registry and Service Recommendations</a> discusses a @@ -235,16 +247,16 @@ contains a class <code>org.joda.time.tz.ZoneInfoCompiler</code> that compiles <code>tz</code> source into a Joda-specific binary format. Joda Time is freely available under a <abbr>BSD</abbr>-style license.</li> -<li><a href="http://pytz.sourceforge.net">PyTZ - Python Time -Zone Library</a> compiles <code>tz</code> source into +<li><a href="http://pytz.sourceforge.net">pytz - World Timezone +Definitions for Python</a> compiles <code>tz</code> source into <a href="http://python.org/">Python</a>. It is freely available under a <abbr>BSD</abbr>-style license.</li> <li><a href="http://tzinfo.rubyforge.org/">TZInfo - Ruby Timezone Library</a> compiles <code>tz</code> source into -<a href="http://ruby-lang.org">Ruby</a>. +<a href="http://www.ruby-lang.org/en/">Ruby</a>. It is freely available under the <abbr title="Massachusetts Institute of Technology">MIT</abbr> license.</li> -<li>The <a href="http://chronos-st.org/">Chronos Date/Time +<li>The <a href="http://www.squeaksource.com/Chronos/">Chronos Date/Time Library</a> is a <a href="http://en.wikipedia.org/wiki/Smalltalk">Smalltalk</a> class library that compiles <code>tz</code> source into a time zone repository whose format @@ -331,7 +343,7 @@ time zone history atlases published in both <a href="http://astrocom.com/astrology-products/software/acs-atlas-software">computer</a> and book form (<a href="http://www.astrocom.com/astrology/books/american-atlas">one volume -for the USA</a>, and <a +for the U.S.</a>, and <a href="http://www.astrocom.com/astrology/books/international-atlas">one for other locations</a>) by <a href="http://astrocom.com/">Astro Computing Services</a>.</li> @@ -421,6 +433,9 @@ surveys the evolution of timekeeping.</li> <li><a href="http://webexhibits.org/daylightsaving/">About Daylight Saving Time - History, rationale, laws & dates</a> is an overall history of <abbr>DST</abbr>.</li> +<li><a href="http://www.w3.org/TR/timezone/">Working with Time Zones</a> +contains guidelines and best practices for software applications that +deal with civil time.</li> <li><a href="http://energy.ca.gov/daylightsaving.html">Saving Time, Saving Energy</a> discusses a primary justification for <abbr>DST</abbr>.</li> <li><a href="http://seizethedaylight.com/dst/">A Brief @@ -499,7 +514,7 @@ href="http://www.polyomino.org.uk/british-time/">History of legal time in Britain</a> discusses in detail the country with perhaps the best-documented history of clock adjustments. The National Physical Laboratory also maintains an <a -href="http://www.npl.co.uk/educate-explore/what-is-the-time/archive-of-summer-tim…">Archive +href="http://www.npl.co.uk/educate-explore/what-is-time/archive-of-summer-time-da…">Archive of Summer time dates</a>.</dd> </dl> <h2>Precision timekeeping</h2> @@ -578,8 +593,8 @@ contentious issue.</li> <h2>Time notation</h2> <ul> <li> -<a href="http://www.cl.cam.ac.uk/~mgk25/iso-time.html">A Summary of -the International Standard Date and Time Notation</a> is a good +<a href="http://www.cl.cam.ac.uk/~mgk25/iso-time.html">A summary of +the international standard date and time notation</a> is a good summary of <a href="http://www.iso.org/iso/catalogue_detail?csnumber=40874"><abbr -- 1.8.1.2

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[PATCH] Morocco 2013 DST transitions
by Andrew Paprocki July 2, 2013

July 2, 2013

I've attached a patch for the announced DST transitions to help speed things along. -Andrew

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Morocco 2013 dates incorrect?
by Andrew Paprocki July 2, 2013

July 2, 2013

Currently I see these rules: Rule Morocco 2013 only - Jul 9 3:00 0 - Rule Morocco 2013 only - Aug 8 2:00 1:00 S I was just informed from the Casablanca Bourse that the exchange will return to standard time on July 7th and that Ramadan will start on July 9th or 10th. Are the current rules incorrectly assuming that return to standard time coincides with the start of Ramadan? Can anyone from Morocco confirm? Thanks, -Andrew

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