- tz - lists.iana.org

[PATCH] Update documentation.
by Paul Eggert Nov. 12, 2012

Nov. 12, 2012

Here are some documentation updates I'd like to fold into the next release. * tz-link.htm: Prune no-longer-working URLs, update URLs that got moved, sort a bit. The most-important casualty is the Norwegian Meteorological Institute's web page for Summer time in Norway, formerly at <http://met.no/met/met_lex/q_u/sommertid.html>: it's no longer there and I can't find out where it moved to, if anywhere. * tzfile.5: Fix minor grammar problem. --- tz-link.htm | 173 +++++++++++++++++++++-------------------------------------- tzfile.5 | 2 +- 2 files changed, 63 insertions(+), 112 deletions(-) diff --git a/tz-link.htm b/tz-link.htm index 2690e1f..0d5d7da 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="2012-10-28"> +<meta name="DC.Date" content="2012-11-12"> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time"> <meta name="DC.Identifier" @@ -101,11 +101,13 @@ gzip -dc tzdata-latest.tar.gz | tar -xf - </code></pre> <p> The code and data files can also be obtained from the -<a href="http://www.iana.org">IANA</a> -<a href="http://www.iana.org/time-zones">timezone web page</a>. +<a href="http://www.iana.org/time-zones">timezone web page</a> +of the <a href="http://www.iana.org">Internet Assigned Numbers +Authority (IANA)</a>. An <a href="https://github.com/eggert/tz">unofficial development repository</a> of the code and data is available -in <a href="http://git-scm.com/">Git</a> form; be careful, as this +in <a href="http://git-scm.com/">Git</a> form +from <a href="https://github.com/">GitHub</a>; be careful, as this repository is less well tested and probably contains more errors. <p> The code lets you compile the <code>tz</code> source files into @@ -118,30 +120,19 @@ send changes to the <a href="mailto:tz@iana.org">time zone mailing list</a>. You can also <a href="http://news.gmane.org/gmane.comp.time.tz">browse recent messages</a> sent to the mailing list, <a -href="https://mm.icann.org/mailman/listinfo/tz">subscribe</a> to it. -browse the <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> (message by message or in gzip compressed format), -or retrieve <a -href="ftp://ftp.iana.org/tz/releases/">archived older versions of code -and data</a>.</p> +messages</a>.</p> <p> The Web has several other sources for time zone and daylight saving time data. -Here are some recent links that may be of interest. +Here are some links that may be of interest. </p> <h2>Web pages using recent versions of the <code>tz</code> database</h2> <p> These are listed roughly in ascending order of complexity and fanciness. </p> <ul> -<li> -<a href="http://permatime.com"> -Permatime</a> -is a service for generating and viewing links that refer to a -particular point in time and can be displayed in multiple timezones. -It uses the ruby tzinfo gem. -(From Tim Diggins, 2009-11-03.) -</li> <li><a href="http://twiki.org/cgi-bin/xtra/tzdatepick.html">Date and Time Gateway</a> lets you see the <code>TZ</code> values directly.</li> <li><a @@ -151,10 +142,13 @@ Time in 1000 Places</a> uses descriptions of the values.</li> uses a pulldown menu.</li> <li><a href="http://home.tiscali.nl/~t876506/TZworld.html">Complete timezone information for all countries</a> displays tables of DST rules. -<li><a href="http://timeanddate.com/worldclock/">The World Clock - +<li><a href="http://timeanddate.com/worldclock/">The World Clock – Time Zones</a> lets you sort zone names and convert times.</li> -<li><a href="http://daylight-savings-time.info/">Graphical Display of -Time Zones and Daylight Saving Times</a> shows a graph of time +<li><a href="http://permatime.com/">Permatime</a> generates and views +links that refer to a particular point in time and can be displayed in +multiple timezones.</li> +<li><a href="http://daylight-savings-time.info/">Daylight Saving Time info</a> +shows a graph of time difference versus time for any pair of locations.</li> <li>The <a href="http://worldtimeengine.com/">World Time Engine</a> also contains data about time zone boundaries; it supports queries via place @@ -175,7 +169,7 @@ Calendaring and Scheduling Working Group (<abbr title="Calendaring and Scheduling Working Group">calsch</abbr>)</a> covers time zone data; see its VTIMEZONE calendar component. -The <a href="http://calconnect.org/">Calendaring and Scheduling +<a href="http://calconnect.org/">CalConnect, The Calendaring and Scheduling Consortium</a> is promoting further work in this area. <a href="http://calconnect.org/publications/icalendartimezoneproblemsandrecommendati…">iCalendar TIMEZONE Problems and Recommendations</a> offers guidelines and @@ -203,7 +197,7 @@ href="http://www.w3.org/2000/01/foo">schema</a> was sketched out.</li> </ul> <h2>Other <code>tz</code> compilers</h2> <ul> -<li><a href="http://www.dachaplin.dsl.pipex.com/vzic/">Vzic iCalendar +<li><a href="http://sourceforge.net/projects/vzic/">Vzic iCalendar Timezone Converter</a> describes a <a href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> program that compiles @@ -250,9 +244,9 @@ compiles <code>tz</code> source into 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 -Library</a> is a <a href="http://smalltalk.org">Smalltalk</a> class -library that compiles <code>tz</code> source into a <a -href="http://date-time-zone.com/">time zone repository</a> whose format +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 is either proprietary or an <a href="http://www.w3.org/XML/"><abbr title="Extensible Markup Language">XML</abbr></a>-encoded representation.</li> @@ -294,7 +288,7 @@ Toolkit</a> applications like <a href="http://mozilla.com/firefox">Firefox</a>, <a href="http://mozilla.com/thunderbird">Thunderbird</a>, and <a -href="http://www.mozilla.org/projects/calendar/sunbird/">Sunbird</a>. +href="https://addons.mozilla.org/en-US/thunderbird/addon/lightning/">Lightning</a>. It displays multiple clocks in the application window, and has a mapping interface to <a href="http://earth.google.com/">Google Earth</a>. It is freely available under the <abbr>GPL</abbr>.</li> @@ -303,18 +297,17 @@ href="http://users.skynet.be/Peter.Verthez/projects/intclock/">International clock (intclock)</a> is a multi-timezone clock for <abbr>GNU</abbr>/Linux and similar systems. It is freely available under the <abbr>GPL</abbr>.</li> -<li><a href="http://codeplex.com/publicdomain">PublicDomain</a> -has a copy of a recent <code>tz</code> database, accessed via a <a -href="http://en.wikipedia.org/wiki/C_Sharp">C#</a> library. As its -name suggests, it is in the public domain. Only current time stamps -are well supported; historical data are compiled into the runtime but -are not easily accessible.</li> -<li><a href="http://java.sun.com/">Sun Java</a> releases since 1.4 +<li><a href="http://www.oracle.com/us/technologies/java/overview/index.html">Oracle +Java</a> releases since 1.4 contain a copy of a subset of a recent <code>tz</code> database in a Java-specific format.</li> <li><a href="http://kimmo.suominen.com/sw/timezone/">Time Zone</a> is a <a href="http://wordpress.org/">WordPress</a> plugin. It is freely available under a <abbr>BSD</abbr>-style license.</li> +<li><a href="http://www.relativedata.com/time-zone-master">Time Zone +Master</a> is a Microsoft Windows clock program that can automatically +download, compile and use the <code>tzdata<var>D</var>.tar.gz</code> +files as they are released. The Basic version is free.</li> <li><a href="http://veladg.com/velaterra.html">VelaTerra</a> is a Mac OS X program. Its developers @@ -323,36 +316,19 @@ licenses</a> to <code>tz</code> contributors.</li> <li><a href="http://worldtimeexplorer.com/">World Time Explorer</a> is a Microsoft Windows program.</li> -<li> -<a href="http://www.toriasoft.com"> -WorldClock for Windows and Windows Mobile</a> -lets users "see the time in up to 25 locations in the world at once." -(From Hans Nieuwenhuis, 2009-11-02.) -</li> -<li> -<a href="http://www.relativedata.com/time-zone-master"> -Time Zone Master Basic -</a> "allows people to display multiple desktop clocks, and to -research current and historical time information, as well as times of -astronomical events (sunrise/transit/set, moonrise/transit/set, phases, -season starts) for user-selected dates in the past and future. It can -automatically download, compile and use the tzdata**.gz database files -as they are released to keep the data up to date. The software is -free." (Davie Patte) -</li> </ul> <h2>Other time zone databases</h2> <ul> <li><a href="http://www.astro.com/cgi/aq.cgi">Atlas Query</a> -is Astrodienst's Web version of Shanks's -excellent time zone history atlases published in both <a -href="http://astrocom.com/products/software.php?software_id=ibmwboth">computer</a> +is Astrodienst's Web version of Shanks and Pottenger's +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://astrocom.com/products/book.php?book_id=b110x">one volume +href="http://www.astrocom.com/astrology/books/american-atlas">one volume for the USA</a>, and <a -href="http://astrocom.com/products/book.php?book_id=b112x">one for +href="http://www.astrocom.com/astrology/books/international-atlas">one for other locations</a>) by <a -href="http://astrocom.com/">Astro Communications Services</a>.</li> +href="http://astrocom.com/">Astro Computing Services</a>.</li> <li><a href="http://worldtime.com/">WORLDTIME: interactive atlas, time info, public holidays</a> contains information on local time, sunrise and sunset, @@ -371,28 +347,17 @@ gives current time zone rules for airports served by commercial aviation.</li> <li>Some Microsoft Windows versions contain time zone information in an undocumented format, with IDs that can be mapped to <code>TZ</code> values using the <a -href="http://unicode.org/cldr/data/diff/supplemental/windows_tzid.html">Windows +href="http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/zone_tzid.html">Zone → Tzid table</a> maintained by the <abbr title="Common Locale Data Repository">CLDR</abbr> data mentioned below.</li> -<li> -<a href="http://code.google.com/p/tzdata/"> -http://code.google.com/p/tzdata/ -</a> -provides programming-language-specific representations of timezone -data. Currently this includes XML, PHP, Ruby, Javascript, JSON and CSV -formatted data. The repository is updated as soon as the FTP -distribution is updated. All data can be downloaded as a zip and/or it -can be obtained/synced via anonymous SVN. Data is made available under -the MIT license. (From Rich Tibbett.) -</li> </ul> <h2>Maps</h2> <ul> <li>The <a href="https://www.cia.gov/">United States Central Intelligence Agency (<abbr title="Central Intelligence Agency">CIA</abbr>)</a> publishes a <a -href="https://www.cia.gov/library/publications/the-world-factbook/reference_maps/…">time +href="https://www.cia.gov/library/publications/the-world-factbook/graphics/ref_ma…">time zone map</a>; the <a href="http://www.lib.utexas.edu/maps/world.html">Perry-Castañeda @@ -421,9 +386,8 @@ of Countries ("Statoids")</a> contains detailed lists of zone boundaries for multizone countries</a> summarizes legal boundaries between time zones within countries.</li> <li>Manifold.net's <a -href="http://www.manifold.net/download/freemaps.html">Free Maps and -<abbr title="Geographic Information Systems">GIS</abbr> -Data</a> includes a Manifold-format map of +href="http://manifold.net/info/freestuff.shtml">Free Stuff for +Manifold System Users</a> includes a Manifold-format map of world time zone boundaries distributed under the <abbr>GPL</abbr>.</li> <li>The <abbr>US</abbr> Geological Survey's National Atlas of @@ -453,15 +417,15 @@ Saving Time - History, rationale, laws & dates</a> is an overall history of <abbr>DST</abbr>.</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/">Who Knew? A Brief +<li><a href="http://seizethedaylight.com/dst/">A Brief History of Daylight Saving Time</a> summarizes some of the contentious history of <abbr>DST</abbr>.</li> -<li><a href="http://toi.iriti.cnr.it/">The +<li><a href="http://toi.inrim.it/uk/toi.html">The Time of Internet</a> describes time zones and daylight saving time, with diagrams. The time zone map is out of date, however.</li> -<li><a href="http://www.phys.uu.nl/~vgent/idl/idl.htm">A History of +<li><a href="http://www.staff.science.uu.nl/~gent0113/idl/idl.htm">A History of the International Date Line</a> tells the story of the most important time zone boundary.</li> <li><a href="http://statoids.com/tconcept.html">Basic Time @@ -471,7 +435,7 @@ Zone Concepts</a> discusses terminological issues behind time zones.</li> <dl> <dt>Australia</dt> <dd>The Parliamentary Library has commissioned <a -href="http://www.aph.gov.au/LIBRARY/Pubs/rn/2006-07/07rn13.pdf">research +href="http://www.aph.gov.au/binaries/library/pubs/rn/2006-07/07rn13.pdf">research note on daylight saving time in Australia</a>. The Bureau of Meteorology publishes a list of <a href="http://www.bom.gov.au/climate/averages/tables/dst_times.shtml">Implementation Dates of Daylight Savings Time within Australia</a>.</dd> @@ -485,17 +449,17 @@ records <a href="http://pcdsh01.on.br/DecHV.html" hreflang="pt-BR">Brazil's daylight saving time decrees (in Portuguese)</a>.</dd> <dt>Canada</dt> -<dd>The Institute for National Measurement Standards publishes current +<dd>National Research Council Canada publishes current and some older information about <a -href="http://inms-ienm.nrc-cnrc.gc.ca/time_services/daylight_saving_e.html">Time -Zones & Daylight Saving Time</a>.</dd> +href="http://www.nrc-cnrc.gc.ca/eng/services/time/time_zones.html">time +zones & daylight saving time</a>.</dd> <dt>Chile</dt> <dd>The Chilean Hydrographic and Oceanographic Service publishes a <a href="http://www.horaoficial.cl/horaof.htm" hreflang="es"> history of official time (in Spanish)</a>.</dd> <dt>Germany</dt> <dd>The National Institute for Science and Technology maintains the <a -href="http://www.ptb.de/en/org/4/44/441/dars_e.htm">Realisation of +href="http://www.ptb.de/cms/en/fachabteilungen/abt4/fb-44/ag-441/realisation-of-l…">Realisation of Legal Time in Germany</a>.</dd> <dt>Israel</dt> <dd>The Interior Ministry periodically issues <a @@ -509,20 +473,15 @@ hreflang="es">history of Mexican local time (in Spanish)</a>.</dd> <dt>Malaysia</dt> <dd>See Singapore below.</dd> <dt>Netherlands</dt> -<dd><a href="http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm" +<dd><a href="http://www.staff.science.uu.nl/~gent0113/wettijd/wettijd.htm" hreflang="nl">Legal time in the Netherlands (in Dutch)</a> covers the history of local time in the Netherlands from ancient times.</dd> <dt>New Zealand</dt> -<dd>The Department of Internal Affairs maintains a brief history <a -href="http://dia.govt.nz/diawebsite.nsf/wpg_URL/Resource-material-Information-We-…">About +<dd>The Department of Internal Affairs maintains a brief <a +href="http://www.dia.govt.nz/Daylight-Saving-History">History of Daylight Saving</a>. The privately-maintained <a href="http://astrologyschool.com/nztime.html">History of New Zealand time</a> has more details.</dd> -<dt>Norway</dt> -<dd>The Norwegian Meteorological Institute lists -<a href="http://met.no/met/met_lex/q_u/sommertid.html" hreflang="no">Summer -time in Norway (in Norwegian)</a>, citing the -Institute of Theoretical Astrophysics, Oslo.</dd> <dt>Singapore</dt> <dd><a href="http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html">Why @@ -530,11 +489,11 @@ is Singapore in the "Wrong" Time Zone?</a> details the history of legal time in Singapore and Malaysia.</dd> <dt>United Kingdom</dt> <dd><a -href="http://www.srcf.ucam.org/~jsm28/british-time/">History of +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/server.php?show=ConWebDoc.2714">Archive +href="http://www.npl.co.uk/educate-explore/what-is-the-time/archive-of-summer-tim…">Archive of Summer time dates</a>.</dd> </dl> <h2>Precision timekeeping</h2> @@ -553,7 +512,8 @@ href="ftp://ftp.rfc-editor.org/in-notes/rfc4833.txt">Timezone Options for <abbr title="Dynamic Host Configuration Protocol">DHCP</abbr></a> (Internet <abbr>RFC</abbr> 4833) specifies a <a -href="http://www.dhcp.org/">DHCP</a> option for a server to configure +href="http://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol">DHCP</a> +option for a server to configure a client's time zone and daylight saving settings automatically.</li> <li><a href="http://gauss.gge.unb.ca/GMT.UT.and.the.RGO.html">A Few Facts Concerning <abbr title="Greenwich Mean Time">GMT</abbr>, <abbr @@ -578,7 +538,7 @@ code for converting among time scales like <abbr title="International Atomic Time">TAI</abbr>, <abbr>TDB</abbr>, <abbr>TDT</abbr> and <abbr>UTC</abbr>.</li> -<li><a href="http://jpl.nasa.gov/basics/bsf2-3.htm">Basics of +<li><a href="http://www2.jpl.nasa.gov/basics/bsf2-3.php">Basics of Space Flight - Reference Systems - Time Conventions</a> briefly explains interplanetary space flight timekeeping.</li> <li><a @@ -593,13 +553,9 @@ dedicated not only to leap seconds but to precise time and frequency in general. It covers the state of the art in amateur timekeeping, and how the art has progressed over the past few decades.</li> <li><a -href="http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletins.html">Bulletins -maintained by the -<abbr title="International Earth Rotation Service">IERS</abbr> -<abbr title="Earth Orientation Parameters">EOP</abbr> -(<abbr title="Product Center">PC</abbr>)</a> contains official publications of -the Earth Orientation Parameters Product Center of the -International Earth Rotation Service, the committee that decides +href="http://www.iers.org/IERS/EN/Publications/Bulletins/bulletins.html">IERS +Bulletins</a> contains official publications of the International +Earth Rotation and Reference Systems Service, which decides when leap seconds occur.</li> <li>The <a href="http://six.pairlist.net/mailman/listinfo/leapsecs">Leap @@ -609,11 +565,8 @@ and Klepczynski's proposal to discontinue leap seconds</a>, discussed further in <a href="http://www.cl.cam.ac.uk/~mgk25/time/metrologia-leapsecond.pdf">The leap second: its history and possible future</a>. -The (now disbanded) <a href="http://members.aas.org/comms/leap.cfm"><abbr -title="American Astronomical Society">AAS</abbr> Leap Second -Committee</a> has solicited input on this proposal. -<a href="http://www.ucolick.org/~sla/leapsecs/">The -Future of Leap Seconds</a> covers this +<a href="http://www.ucolick.org/~sla/leapsecs/">UTC might be redefined +without Leap Seconds</a> gives pointers on this contentious issue.</li> </ul> <h2>Time notation</h2> @@ -623,7 +576,7 @@ contentious issue.</li> the International Standard Date and Time Notation</a> is a good summary of <a -href="http://www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=40874"><abbr +href="http://www.iso.org/iso/catalogue_detail?csnumber=40874"><abbr title="International Organization for Standardization">ISO</abbr> 8601:2004 -- Data elements and interchange formats -- Information interchange -- Representation of dates and times</a>.</li> @@ -658,8 +611,8 @@ abbreviations, identifiers, and formats. For example, it contains French translations for "Eastern European Summer Time", "<abbr title="Eastern European Summer Time">EEST</abbr>", and "Bucharest". <a -href="http://unicode.org/cldr/data/charts/by_type/names.metazone.html">By-Type -Chart: names.metazone</a> shows these values for many locales. +href="http://unicode.org/cldr/charts/by_type/index.html">By-Type +Chart</a> shows these values for many locales. <abbr>ICU</abbr> contains a mechanism for using this data.</li> <li>Alphabetic time zone abbreviations should not be used as unique identifiers for <abbr>UTC</abbr> offsets as they are ambiguous in @@ -693,8 +646,6 @@ is called "<abbr>GMT</abbr>".</li> <li><a href="tz-art.htm">Time and the Arts</a></li> <li><a href="http://www.dmoz.org/Reference/Time/">Open Directory - Reference: Time</a></li> -<li><a href="http://directory.google.com/Top/Reference/Time/">Google Directory -- Reference > Time</a></li> <li><a href="http://dir.yahoo.com/Science/Measurements_and_Units/Time">Yahoo! Directory > Science > Measurements and Units > Time</a></li> </ul> diff --git a/tzfile.5 b/tzfile.5 index aa7317b..10698a2 100644 --- a/tzfile.5 +++ b/tzfile.5 @@ -137,7 +137,7 @@ is zero or the time argument is less than the first transition time recorded in the file. .PP For version-2-format time zone files, -the above header and data is followed by a second header and data, +the above header and data are followed by a second header and data, identical in format except that eight bytes are used for each transition time or leap second time. After the second header and data comes a newline-enclosed, -- 1.7.9.5

2 2

Libya one hour back last night
by Even Scharning Nov. 12, 2012

Nov. 12, 2012

Libya set their time one hour back at 02:00 on Saturday November 10. Sources: http://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/ http://twitter.com/ShoofLibya/status/265193706439733248/photo/1 "By the time everyone in Libya realizes the clocks are supposed to be set back 1 hour, it'll be time to set them forward again." https://twitter.com/Tripolitanian/status/267040258363899905 Sincerely, Even Scharning Time.is - exact time, any time zone http://time.is/

4 4

Libya - Daylight Saving Time
by Eng. Ali H. Saleh Nov. 11, 2012

Nov. 11, 2012

Madam/Sir, Libya has changed its time 1 hour back for Daylight Saving Time since Sat 10 November 2012 to be +1GMT (CET). Please visit this link for confirmation http://www.timeanddate.com/worldclock/city.html?n=252 Kindly modify your database accordingly. Regards, -- Eng.Ali H. Saleh CEO *The Golden Group *Off Airport Road, behind Brega Tank Farm P.O. Box 83465, Tripoli - Libya Tel: +218 21 730 3903 Fax: +218 21 715 1478 Mobile LIbya: +218 91 495 7702 Web: www.goldengroup.info Confidentiality: The information contained in this e-mail is intended only for the personal and confidential use of the designated recipients of the email. This message may be an attorney-client communication and, as such, is privileged and confidential. If you are not an intended recipient of this message or an agent responsible for delivering it to an intended recipient, you are hereby notified that you have received this message in error, and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this message in error, please delete it and all copies and notify us immediately by reply e-mail or by telephone (+218 21 730 3903). Thank you.

1 0

Libya one hour back last night
by Even Scharning Nov. 10, 2012

Nov. 10, 2012

Libya set their time one hour back at 02:00 on Saturday November 10. http://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/ http://twitter.com/ShoofLibya/status/265193706439733248/photo/1 "By the time everyone in Libya realizes the clocks are supposed to be set back 1 hour, it'll be time to set them forward again." https://twitter.com/Tripolitanian/status/267040258363899905 Sincerely, Even Scharning Time.is - exact time, any time zone http://time.is/

1 0

Print zdump and zic program names in --version output
by Joseph S. Myers Nov. 10, 2012

Nov. 10, 2012

This patch makes zdump and zic print their own names in their --version output, in accordance with the GNU standards for what --version should print. (tzselect already does print its name in --version output.) diff --git a/zdump.c b/zdump.c index 805267d..8b118ed 100644 --- a/zdump.c +++ b/zdump.c @@ -309,7 +309,7 @@ main(int argc, char *argv[]) progname = argv[0]; for (i = 1; i < argc; ++i) if (strcmp(argv[i], "--version") == 0) { - (void) printf("%s\n", TZVERSION); + (void) printf("zdump %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 a9a54bb..428eaaa 100644 --- a/zic.c +++ b/zic.c @@ -462,7 +462,7 @@ main(int argc, char **argv) } for (i = 1; i < argc; ++i) if (strcmp(argv[i], "--version") == 0) { - (void) printf("%s\n", TZVERSION); + (void) printf("zic %s\n", TZVERSION); exit(EXIT_SUCCESS); } else if (strcmp(argv[i], "--help") == 0) { usage(stdout, EXIT_SUCCESS); -- Joseph S. Myers joseph(a)codesourcery.com

5 7

[PATCH] Change email address to tz@iana.org.
by Paul Eggert Nov. 10, 2012

Nov. 10, 2012

[The need for this change should be obvious.] * africa, australasia, europe, northamerica, southamerica: * tzselect.ksh, zdump.c, zic.c: In commentary and strings, change email address from tz(a)elsie.nci.nih.gov to tz(a)iana.org, as the old email address no longer works. --- africa | 2 +- asia | 5 ++--- australasia | 2 +- europe | 2 +- northamerica | 2 +- southamerica | 2 +- tzselect.ksh | 2 +- zdump.c | 2 +- zic.c | 2 +- 9 files changed, 10 insertions(+), 11 deletions(-) diff --git a/africa b/africa index 1c6e520..bbec05e 100644 --- a/africa +++ b/africa @@ -4,7 +4,7 @@ # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz(a)elsie.nci.nih.gov for general use in the future). +# tz(a)iana.org for general use in the future). # From Paul Eggert (2006-03-22): # diff --git a/asia b/asia index 9c6e1ac..d5562c8 100644 --- a/asia +++ b/asia @@ -4,7 +4,7 @@ # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz(a)elsie.nci.nih.gov for general use in the future). +# tz(a)iana.org for general use in the future). # From Paul Eggert (2006-03-22): # @@ -2052,8 +2052,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907 # occurred before our cutoff date of 1970. # However, as we get more information, we may need to add entries # for parts of the West Bank as they transitioned from Israel's rules -# to Palestine's rules. If you have more info about this, please -# send it to tz(a)elsie.nci.nih.gov for incorporation into future editions. +# to Palestine's rules. # From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time, # forwarded by Ephraim Silverberg: diff --git a/australasia b/australasia index 74d476e..bef6f20 100644 --- a/australasia +++ b/australasia @@ -780,7 +780,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz(a)elsie.nci.nih.gov for general use in the future). +# tz(a)iana.org for general use in the future). # From Paul Eggert (2006-03-22): # A good source for time zone historical data outside the U.S. is diff --git a/europe b/europe index 5d2acc5..ad9816c 100644 --- a/europe +++ b/europe @@ -4,7 +4,7 @@ # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz(a)elsie.nci.nih.gov for general use in the future). +# tz(a)iana.org for general use in the future). # From Paul Eggert (2006-03-22): # A good source for time zone historical data outside the U.S. is diff --git a/northamerica b/northamerica index 18a4228..772d7a4 100644 --- a/northamerica +++ b/northamerica @@ -6,7 +6,7 @@ # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz(a)elsie.nci.nih.gov for general use in the future). +# tz(a)iana.org for general use in the future). # From Paul Eggert (1999-03-22): # A reliable and entertaining source about time zones is diff --git a/southamerica b/southamerica index 3195846..3301a43 100644 --- a/southamerica +++ b/southamerica @@ -4,7 +4,7 @@ # This data is by no means authoritative; if you think you know better, # go ahead and edit the file (and please send any changes to -# tz(a)elsie.nci.nih.gov for general use in the future). +# tz(a)iana.org for general use in the future). # From Paul Eggert (2006-03-22): # A good source for time zone historical data outside the U.S. is diff --git a/tzselect.ksh b/tzselect.ksh index 4fe5d02..279bdf2 100644 --- a/tzselect.ksh +++ b/tzselect.ksh @@ -43,7 +43,7 @@ if [ "$1" = "--help" ]; then Usage: tzselect Select a time zone interactively. -Report bugs to tz(a)elsie.nci.nih.gov. +Report bugs to tz(a)iana.org. EOF exit 0 elif [ "$1" = "--version" ]; then diff --git a/zdump.c b/zdump.c index 805267d..bdbd1d6 100644 --- a/zdump.c +++ b/zdump.c @@ -272,7 +272,7 @@ usage(FILE * const stream, const int status) (void) fprintf(stream, _("%s: usage is %s [ --version ] [ --help ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n\ \n\ -Report bugs to tz(a)elsie.nci.nih.gov.\n"), +Report bugs to tz(a)iana.org.\n"), progname, progname); exit(status); } diff --git a/zic.c b/zic.c index a9a54bb..35c8d4b 100644 --- a/zic.c +++ b/zic.c @@ -426,7 +426,7 @@ usage(FILE *stream, int status) [ --version ] [ --help ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\ \t[ -d directory ] [ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n\ \n\ -Report bugs to tz(a)elsie.nci.nih.gov.\n"), +Report bugs to tz(a)iana.org.\n"), progname, progname); exit(status); } -- 1.7.9.5

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DST in the news: DC-area subway glitch
by Arthur David Olson Nov. 6, 2012

Nov. 6, 2012

Page B3 of the print edition of the 2012-11-06 Washington Post has the story "Metro time-change error strands riders;" the on-line version is available at... http://www.washingtonpost.com/blogs/dr-gridlock/wp/2012/11/05/metro-closes-… The DC-area Metro rail system failed to turn its clocks back and closed an hour earlier than expected. In line with past practice, Metro issued a pro-forma apology but provided neither an explanation nor an offer of compensation. --ado

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[PATCH] Automate the building of tarball signatures.
by Paul Eggert Nov. 5, 2012

Nov. 5, 2012

* Makefile (public): Rewrite in terms of new rules, below. (check_public): New rule, containing the old checking part of 'make public'. (tarballs): New rule, containing the old tarball-making part of 'make public'. Do not run checktab twice. (signatures, tzcode$(VERSION).tar.gz.sign, tzdata$(VERSION).tar.gz.sign): New rules. --- Makefile | 27 ++++++++++++++++++++++----- 1 file changed, 22 insertions(+), 5 deletions(-) diff --git a/Makefile b/Makefile index c8150ba..c09d20f 100644 --- a/Makefile +++ b/Makefile @@ -420,6 +420,8 @@ maintainer-clean: clean names: @echo $(ENCHILADA) +public: check check_public set-timestamps tarballs signatures + # Set the time stamps to those of the git repository, if available, # and if the files have not changed since then. # This uses GNU 'touch' syntax 'touch -d@N FILE', @@ -439,26 +441,41 @@ set-timestamps: # The zics below ensure that each data file can stand on its own. # We also do an all-files run to catch links to links. -public: $(ENCHILADA) set-timestamps +check_public: $(ENCHILADA) make maintainer-clean make "CFLAGS=$(GCC_DEBUG_FLAGS)" mkdir -m go-rwx /tmp/,tzpublic - -for i in $(TDATA) ; do zic -v -d /tmp/,tzpublic $$i 2>&1 | grep -v "starting year" ; done + -for i in $(TDATA) ; do \ + zic -v -d /tmp/,tzpublic $$i 2>&1 | grep -v "starting year" ; \ + done for i in $(TDATA) ; do zic -d /tmp/,tzpublic $$i || exit; done zic -v -d /tmp/,tzpublic $(TDATA) || exit rm -f -r /tmp/,tzpublic + +tarballs: tzcode$(VERSION).tar.gz tzdata$(VERSION).tar.gz + +tzcode$(VERSION).tar.gz: $(COMMON) $(DOCS) $(SOURCES) $(MISC) for i in *.[1-8] ; do \ LC_ALL=C sh workman.sh $$i > $$i.txt && \ touch -r $$i $$i.txt || exit; \ done - $(AWK) -f checktab.awk $(PRIMARY_YDATA) LC_ALL=C && export LC_ALL && \ tar $(TARFLAGS) -cf - \ $(COMMON) $(DOCS) $(SOURCES) $(MISC) *.[1-8].txt | \ - gzip $(GZIPFLAGS) > tzcode$(VERSION).tar.gz + gzip $(GZIPFLAGS) > $@ + +tzdata$(VERSION).tar.gz: $(COMMON) $(DATA) LC_ALL=C && export LC_ALL && \ tar $(TARFLAGS) -cf - $(COMMON) $(DATA) | \ - gzip $(GZIPFLAGS) > tzdata$(VERSION).tar.gz + gzip $(GZIPFLAGS) > $@ + +signatures: tzcode$(VERSION).tar.gz.sign tzdata$(VERSION).tar.gz.sign + +tzcode$(VERSION).tar.gz.sign: tzcode$(VERSION).tar.gz + gpg --armor --detach-sign -o $@ $? + +tzdata$(VERSION).tar.gz.sign: tzdata$(VERSION).tar.gz + gpg --armor --detach-sign -o $@ $? typecheck: make clean -- 1.7.9.5

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[PATCH 3/3] Changes for Bahia, Tocantins, Israel, Jordan.
by Paul Eggert Nov. 5, 2012

Nov. 5, 2012

* asia (Zion): New Israeli rules next year. See Ephraim Silverberg in <http://mm.icann.org/pipermail/tz/2012-October/018351.html>. (Jordan): Jordan stays on DST this winter. See Steffen Thorsen in <http://mm.icann.org/pipermail/tz/2012-October/018374.html>. * southamerica (America/Araguaina): Now has DST. See Rodrigo Severo in <http://mm.icann.org/pipermail/tz/2012-October/018346.html>. (America/Bahia): No longer has DST. See Kelley Cook in <http://mm.icann.org/pipermail/tz/2012-October/018349.html>. --- asia | 82 ++++++++++++++++++++++++++++++++-------------------------- southamerica | 15 +++++++++-- 2 files changed, 58 insertions(+), 39 deletions(-) diff --git a/asia b/asia index 8e896fc..7d12e8b 100644 --- a/asia +++ b/asia @@ -1170,15 +1170,15 @@ Rule Zion 2004 only - Sep 22 1:00 0 S # # ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps -# From Paul Eggert (2005-02-22): +# From Paul Eggert (2012-10-26): # I used Ephraim Silverberg's dst-israel.el program # <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20) # along with Ed Reingold's cal-hebrew in GNU Emacs 21.4, -# to generate the transitions in this list. +# to generate the transitions from 2005 through 2012. # (I replaced "lastFri" with "Fri>=26" by hand.) -# The spring transitions below all correspond to the following Rule: +# The spring transitions all correspond to the following Rule: # -# Rule Zion 2005 max - Mar Fri>=26 2:00 1:00 D +# Rule Zion 2005 2012 - Mar Fri>=26 2:00 1:00 D # # but older zic implementations (e.g., Solaris 8) do not support # "Fri>=26" to mean April 1 in years like 2005, so for now we list the @@ -1195,39 +1195,36 @@ Rule Zion 2009 only - Sep 27 2:00 0 S Rule Zion 2010 only - Sep 12 2:00 0 S Rule Zion 2011 only - Apr 1 2:00 1:00 D Rule Zion 2011 only - Oct 2 2:00 0 S -Rule Zion 2012 2015 - Mar Fri>=26 2:00 1:00 D +Rule Zion 2012 only - Mar Fri>=26 2:00 1:00 D Rule Zion 2012 only - Sep 23 2:00 0 S -Rule Zion 2013 only - Sep 8 2:00 0 S -Rule Zion 2014 only - Sep 28 2:00 0 S -Rule Zion 2015 only - Sep 20 2:00 0 S -Rule Zion 2016 only - Apr 1 2:00 1:00 D -Rule Zion 2016 only - Oct 9 2:00 0 S -Rule Zion 2017 2021 - Mar Fri>=26 2:00 1:00 D -Rule Zion 2017 only - Sep 24 2:00 0 S -Rule Zion 2018 only - Sep 16 2:00 0 S -Rule Zion 2019 only - Oct 6 2:00 0 S -Rule Zion 2020 only - Sep 27 2:00 0 S -Rule Zion 2021 only - Sep 12 2:00 0 S -Rule Zion 2022 only - Apr 1 2:00 1:00 D -Rule Zion 2022 only - Oct 2 2:00 0 S -Rule Zion 2023 2032 - Mar Fri>=26 2:00 1:00 D -Rule Zion 2023 only - Sep 24 2:00 0 S -Rule Zion 2024 only - Oct 6 2:00 0 S -Rule Zion 2025 only - Sep 28 2:00 0 S -Rule Zion 2026 only - Sep 20 2:00 0 S -Rule Zion 2027 only - Oct 10 2:00 0 S -Rule Zion 2028 only - Sep 24 2:00 0 S -Rule Zion 2029 only - Sep 16 2:00 0 S -Rule Zion 2030 only - Oct 6 2:00 0 S -Rule Zion 2031 only - Sep 21 2:00 0 S -Rule Zion 2032 only - Sep 12 2:00 0 S -Rule Zion 2033 only - Apr 1 2:00 1:00 D -Rule Zion 2033 only - Oct 2 2:00 0 S -Rule Zion 2034 2037 - Mar Fri>=26 2:00 1:00 D -Rule Zion 2034 only - Sep 17 2:00 0 S -Rule Zion 2035 only - Oct 7 2:00 0 S -Rule Zion 2036 only - Sep 28 2:00 0 S -Rule Zion 2037 only - Sep 13 2:00 0 S + +# From Ephraim Silverberg (2012-10-18): + +# Yesterday, the Interior Ministry Committee, after more than a year +# past, approved sending the proposed June 2011 changes to the Time +# Decree Law back to the Knesset for second and third (final) votes +# before the upcoming elections on Jan. 22, 2013. Hence, although the +# changes are not yet law, they are expected to be so before Februray 2013. +# +# As of 2013, DST starts at 02:00 on the Friday before the last Sunday in March. +# DST ends at 02:00 on the first Sunday after October 1, unless it occurs on the +# second day of the Jewish Rosh Hashana holiday, in which case DST ends a day +# later (i.e. at 02:00 the first Monday after October 2). +# [Rosh Hashana holidays are factored in until 2100.] + +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D +Rule Zion 2013 2026 - Oct Sun>=2 2:00 0 S +Rule Zion 2027 only - Oct Mon>=3 2:00 0 S +Rule Zion 2028 max - Oct Sun>=2 2:00 0 S +# The following rules are commented out for now, as they break older +# versions of zic that support only signed 32-bit timestamps, i.e., +# through 2038-01-19 03:14:07 UTC. +#Rule Zion 2028 2053 - Oct Sun>=2 2:00 0 S +#Rule Zion 2054 only - Oct Mon>=3 2:00 0 S +#Rule Zion 2055 2080 - Oct Sun>=2 2:00 0 S +#Rule Zion 2081 only - Oct Mon>=3 2:00 0 S +#Rule Zion 2082 max - Oct Sun>=2 2:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Jerusalem 2:20:56 - LMT 1880 @@ -1362,6 +1359,16 @@ Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u # From Arthur David Olson (2009-04-06): # We still have Jordan switching to DST on Thursdays in 2000 and 2001. +# From Steffen Thorsen (2012-10-25): +# Yesterday the government in Jordan announced that they will not +# switch back to standard time this winter, so the will stay on DST +# until about the same time next year (at least). +# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950 +# +# From Paul Eggert (2012-10-25): +# For now, assume this is just a one-year measure. If it becomes +# permanent, we should move Jordan from EET to AST effective tomorrow. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Jordan 1973 only - Jun 6 0:00 1:00 S Rule Jordan 1973 1975 - Oct 1 0:00 0 - @@ -1390,7 +1397,8 @@ Rule Jordan 2002 max - Mar lastThu 24:00 1:00 S Rule Jordan 2003 only - Oct 24 0:00s 0 - Rule Jordan 2004 only - Oct 15 0:00s 0 - Rule Jordan 2005 only - Sep lastFri 0:00s 0 - -Rule Jordan 2006 max - Oct lastFri 0:00s 0 - +Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 - +Rule Jordan 2013 max - Oct lastFri 0:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Amman 2:23:44 - LMT 1931 2:00 Jordan EE%sT diff --git a/southamerica b/southamerica index ab4d14d..3195846 100644 --- a/southamerica +++ b/southamerica @@ -829,6 +829,15 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina… # </a> +# From Kelley Cook (2012-10-16): +# The governor of state of Bahia in Brazil announced on Thursday that +# due to public pressure, he is reversing the DST policy they implemented +# last year and will not be going to Summer Time on October 21st.... +# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-hor… + +# From Rodrigo Severo (2012-10-16): +# Tocantins state will have DST. +# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01) @@ -1048,7 +1057,8 @@ Zone America/Araguaina -3:12:48 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1995 Sep 14 -3:00 Brazil BR%sT 2003 Sep 24 - -3:00 - BRT + -3:00 - BRT 2012 Oct 21 + -3:00 Brazil BR%sT # # Alagoas (AL), Sergipe (SE) Zone America/Maceio -2:22:52 - LMT 1914 @@ -1067,7 +1077,8 @@ Zone America/Maceio -2:22:52 - LMT 1914 Zone America/Bahia -2:34:04 - LMT 1914 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT 2011 Oct 16 - -3:00 Brazil BR%sT + -3:00 Brazil BR%sT 2012 Oct 21 + -3:00 - BRT # # Goias (GO), Distrito Federal (DF), Minas Gerais (MG), # Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR), -- 1.7.9.5

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[PATCH 2/2] Improve logic of zic -v abbreviation-length check.
by Paul Eggert Nov. 4, 2012

Nov. 4, 2012

This fixes a bunch of "time zone abbreviation has more than 3 alphabetics" diagnostics for 'make check_public'. * zic.c (newabbr): Check for <3 alphabetics, not for >3. POSIX-2008 requires at least 3 and says that it's not portable to use more than 6, which we check elsewhere. --- zic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/zic.c b/zic.c index 64af1b2..a9a54bb 100644 --- a/zic.c +++ b/zic.c @@ -2534,8 +2534,8 @@ newabbr(const char *const string) ++cp; if (cp - string == 0) mp = _("time zone abbreviation lacks alphabetic at start"); - if (noise && cp - string > 3) -mp = _("time zone abbreviation has more than 3 alphabetics"); + if (noise && cp - string < 3) +mp = _("time zone abbreviation has fewer than 3 alphabetics"); if (cp - string > ZIC_MAX_ABBR_LEN_WO_WARN) mp = _("time zone abbreviation has too many alphabetics"); if (mp == NULL && (*cp == '+' || *cp == '-')) { -- 1.7.9.5

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