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author	Todd C. Miller <millert@cvs.openbsd.org>	2003-10-06 00:17:14 +0000
committer	Todd C. Miller <millert@cvs.openbsd.org>	2003-10-06 00:17:14 +0000
commit	871b95442fbcae23ad9a620361ebcb38834aaa6a (patch)
tree	a138ef3c68a433e42a288fde4ee7bf79a043e676 /lib/libc/time/tz-link.htm
parent	b6197bcdfc3a4d3566f21f9f83c165ab5c6350f2 (diff)

Update to tzcode2003c from elsie.nci.nih.gov

Fixes a pasto and implements better int oflow checking (doesn't rely on unspecified behavior).

Diffstat (limited to 'lib/libc/time/tz-link.htm')

-rw-r--r--

lib/libc/time/tz-link.htm

115

1 files changed, 73 insertions, 42 deletions

diff --git a/lib/libc/time/tz-link.htm b/lib/libc/time/tz-link.htm
index 79869ff5ffa..80a20b5d61a 100644
--- a/lib/libc/time/tz-link.htm
+++ b/lib/libc/time/tz-link.htm

@@ -2,7 +2,6 @@

<!DOCTYPE html

PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"

"DTD/xhtml1-strict.dtd">

-

<head>

<title>Sources for Time Zone and Daylight Saving Time Data</title>

@@ -20,7 +19,7 @@

<body>

<h1>Sources for Time Zone and Daylight Saving Time Data</h1>

-@(#)tz-link.htm 7.37

+@(#)tz-link.htm 7.38

</address>

<p>

Please send corrections to this web page to the

@@ -41,12 +40,13 @@ including

<a href="http://www.freebsd.org/">FreeBSD</a>,

<a href="http://www.netbsd.org/">NetBSD</a>,

<a href="http://www.openbsd.org/">OpenBSD</a>,

+<a href="http://www.cygwin.com/">Cygwin</a>,

<a href="http://www.delorie.com/djgpp/">DJGPP</a>,

<a href="http://www.hp.com/products1/unix/operating/">HP-UX</a>,

-<a href="http://www.sgi.com/developers/technology/irix.html">IRIX</a>,

-<a href="http://www.caldera.com/products/openunix/">Open UNIX/UnixWare</a>,

-<a href="http://wwws.sun.com/software/solaris/">Solaris</a>, and

-<a href="http://www.tru64unix.compaq.com/">Tru64</a>.</p>

+<a href="http://www.sgi.com/developers/technology/irix/">IRIX</a>,

+<a href="http://wwws.sun.com/software/solaris/">Solaris</a>,

+<a href="http://www.tru64unix.compaq.com/">Tru64</a>, and

+<a href="http://www.sco.com/products/unixware/">UnixWare</a>.</p>

<p>

Each location in the database represents a national region where all

clocks keeping local time have agreed since 1970.

@@ -98,10 +98,6 @@ Here are some recent links that may be of interest.

<li><a href="http://www.bsdi.com/date/">Date and Time Gateway</a> is a

text-based point-and-click interface to tables of current time

throughout the world.</li>

-<li><a href="http://sandbox.xerox.com/stewart/tzconvert.cgi">Timezone

-Converter</a> is a similar interface, with source code

-written in <a href="http://www.perl.org/">Perl</a>, using what Paul

-Stewart calls the "20-line hack no one will let me forget".</li>

<li>Fancier web interfaces, roughly in ascending order of complexity, include:

<ul>

<li><a href="http://www.hilink.com.au/times/">Local Times Around the

@@ -112,29 +108,44 @@ World</a></li>

<li><a href="http://www.holidayfestival.com/">The Worldwide Holiday

& Festival Site</a> lists DST-related clock changes along with

holidays.</li>

-<li><a href="http://www.timeanddate.com/worldclock/">The World Clock</a>

+<li><a href="http://www.timeanddate.com/worldclock/">The World Clock -

+Time Zones</a>

is a web interface to a time zone database derived from

</ul>

+<h2>Other time zone database formats</h2>

+<ul>

+<li>The <a href="ftp://ftp.rfc-editor.org/in-notes/rfc2445.txt">

+Internet Calendaring and Scheduling Core Object Specification

+(iCalendar)</a> specification published by the <a

+href="http://www.ietf.org/html.charters/calsch-charter.html">IETF

+Calendaring and Scheduling Working Group (calsch)</a> covers time zone

+data; see its VTIMEZONE calendar component.</li>

+<li>The <a

+href="http://lists.w3.org/Archives/Public/www-rdf-calendar/"><samp>www-rdf-calendar</samp></a>

+list discusses <a href="http://www.w3.org/RDF/">RDF</a>-based calendar

+and group scheduling systems, and has a <a

+href="http://www.w3.org/2002/12/cal/#tzd">workspace on time zone

+data</a> converted from <code>tz</code>. An earlier <a

+href="http://www.w3.org/2000/01/foo">schema</a> was sketched out by <a

+href="http://www.w3.org/People/Berners-Lee/">Tim Berners-Lee</a>.</li>

+<li><a

+href="http://www.ietf.org/internet-drafts/draft-ietf-calsch-many-xcal-02.txt">XCal</a>

+is a draft <a href="http://www.w3.org/XML/">XML</a> document type

+definition that corresponds to iCalendar. <a

+href="http://www.panix.com/~gmcgath/sosigenes/">Sosigenes</a> is a <a

+href="http://java.sun.com/">Java</a> package for reading XCal

+calendars; it is distributed under the terms of the <a

+href="http://www.opensource.org/licenses/academic.php">Academic Free

+License</a>.</li>

+</ul>

<h2>Other <code>tz</code> compilers</h2>

<ul>

<li><a href="http://primates.ximian.com/~damon/icalendar/">Olson ->

VTIMEZONE Converter</a> describes a program Vzic that

-compiles <code>tz</code> source into VTIMEZONE text as specified by

-the <a href="ftp://ftp.rfc-editor.org/in-notes/rfc2445.txt">iCalendar</a>

-specification published by the <a

-href="http://www.ietf.org/html.charters/calsch-charter.html">IETF

-Calendaring and Scheduling Working Group</a>. Vzic is freely

+compiles <code>tz</code> source into iCalendar format. Vzic is freely

available under the <a href="http://www.gnu.org/copyleft/gpl.html">GNU

General Public License (GPL)</a>.</li>

-<li>Possible XML schemata for the <code>tz</code> data include <a

-href="http://www.w3.org/2000/01/foo">one</a> sketched out by <a

-href="http://www.w3.org/People/Berners-Lee/">Tim Berners-Lee</a> and

-<a

-href="http://developer.iplanet.com/docs/wpapers/calendar/ietf.txt">another</a>

-used by the <a

-href="http://wwws.sun.com/software/products/calendar_srvr/home_calendar.html">Sun

-ONE Calendar Server</a>.</li>

</ul>

<h2>Other <code>tz</code> binary file readers</h2>

<ul>

@@ -148,6 +159,10 @@ and is widely used in GNU/Linux systems.</li>

<li><a href="http://www.bmsi.com/java/#TZ">ZoneInfo.java</a>

is a <code>tz</code> binary file reader written in Java.

It is freely available under the GNU LGPL.</li>

+<li><a href="http://s.keim.free.fr/tz/doc.html">Python time zones</a>

+is a <code>tz</code> binary file reader written in <a

+href="http://www.python.org/">Python</a>. It is freely available

+under a BSD-style license.</li>

</ul>

<h2>Other <code>tz</code>-based time zone conversion software</h2>

<ul>

@@ -155,13 +170,13 @@ It is freely available under the GNU LGPL.</li>

href="http://www1.tip.nl/~t876506/AboutTimeZonesHC.html">HyperCard

time zones calculator</a> is a HyperCard stack.</li>

<li><a

-href="http://www.cimmyt.org/timezone/">Time Zone Converter</a> is a

+href="http://www.cimmyt.org/timezone/">World Time Explorer</a> is a

Microsoft Windows program.</li>

</ul>

<h2>Other time zone databases</h2>

<ul>

-<li><a href="http://www.astro.com/cgi-bin/atlw3/aq.cgi?lang=e">Astrodienst

-- Atlas Query</a> is Astrodienst's Web version of Shanks's

+<li><a href="http://www.astro.com/cgi-bin/atlw3/aq.cgi?lang=e">Atlas Query

+- Astrodienst</a> is Astrodienst's Web version of Shanks's

excellent time zone history atlases published in both <a

href="http://astrocom.com/software/pcatlas.php">computer</a> and <a

href="http://astrocom.com/books/xrefa.php#SHANKS">book</a> form by <a

@@ -179,8 +194,8 @@ for the <code>usno*</code> files in the <code>tz</code> distribution.</li>

<li><a href="http://www.airportcitycodes.com/aaa/">Airlines, Airplanes

and Airports</a> lists current standard times for thousands of

airports around the world. This seems to be derived from

-the <a href="http://www.iata.org/sked/ssim.htm">Standard

-Schedules Information Manual</a> of the

+the <a href="http://www.iata.org/sked/publications/">Standard

+Schedules Information Manual (SSIM)</a> of the

the <a href="http://www.iata.org/">International Air Transport

Association</a>,

which gives current time zone rules for

@@ -190,7 +205,7 @@ all the airports served by commercial aviation.</li>

<ul>

<li>The <a href="http://www.odci.gov/">United States Central

Intelligence Agency (CIA)</a> publishes a <a

-href="http://www.odci.gov/cia/publications/factbook/ref/pdf/802801.pdf">time

+href="http://www.odci.gov/cia/publications/factbook/reference_maps/pdf/time_zones.pdf">time

zone map</a>; the

href="http://www.lib.utexas.edu/maps/world.html">Perry-Castañeda

@@ -221,7 +236,7 @@ Zones of the United States</a> in the public domain.</li>

href="http://spatialnews.geocomm.com/features/timezones/">International

Time Zones and Time Zone Data</a>.</li>

</ul>

-<h2>Daylight saving time concepts and history</h2>

+<h2>Civil time concepts and history</h2>

<ul>

<li><a href="http://physics.nist.gov/time">A Walk through Time</a>

surveys the evolution of timekeeping.</li>

@@ -236,13 +251,20 @@ 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

the International Date Line</a> tells the story of the most important

time zone boundary.</li>

-<li>A few countries have well-documented histories of legal time.

+<li><a href="http://www.mindspring.com/~gwil/tconcept.html">Basic Time

+Zone Concepts</a> discusses terminological issues behind time zones.</li>

+</ul>

+<h2>National histories of legal time</h2>

<dl>

<dt>Australia</dt>

<dd><a

href="http://www.dstc.qut.edu.au/DST/marg/daylight.html#more">Australia's

Daylight Saving Times</a> contains pointers to government records and to

histories of daylight saving.</dd>

+<dt>Austria</dt>

+<dd>The Federal Office of Metrology and Surveying publishes a

+table of <a href="http://www.metrologie.at/pdf/sommerzeit.pdf"

+hreflang="de">daylight saving time in Austria (in German)</a>.</dd>

<dt>Belgium</dt>

<dd>The Royal Observatory of Belgium maintains a table of <a

href="http://www.astro.oma.be/GENERAL/INFO/nli001a.html"

@@ -255,8 +277,12 @@ Portuguese)</a>.</dd>

<dt>Canada</dt>

<dd>The Institute for National Measurement Standards publishes current

and some older information about <a

-href="http://www.nrc.ca/inms/time/tze.html">Time Zones and Daylight

-Saving Time</a>.</dd>

+href="http://inms-ienm.nrc-cnrc.gc.ca/time_services/daylight_savings_e.html">Time

+Zones and Daylight Saving Time</a>.</dd>

+<dt>Chile</dt>

+<dd>The Hydrographic and Oceanographic Service has a <a

+href="http://www.shoa.cl/shoa/faqhoraoficial.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/4/43/432/lega.htm">Realisation of

@@ -274,6 +300,10 @@ hreflang="es">history of Mexican local time (in Spanish)</a>.</dd>

<dd><a href="http://www.phys.uu.nl/~vgent/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://www.dia.govt.nz/diawebsite.nsf/wpg_URL/Resource-material-Information-We-Provide-About-Daylight-Saving">about

+daylight saving</a>.</dd>

<dt>United Kingdom</dt>

<dd><a

href="http://student.cusu.cam.ac.uk/~jsm28/british-time/">History of

@@ -282,8 +312,7 @@ with perhaps the best-documented history of clock adjustments.

The National Physical Laboratory also maintains an <a

href="http://www.npl.co.uk/time/summer_time_archive.html">archive

of summer time dates</a>.</dd>

-</dl></li>

-</ul>

+</dl>

<h2>Precision timekeeping</h2>

<ul>

<li><a

@@ -316,13 +345,14 @@ International Earth Rotation Service, the committee that decides

when leap seconds occur.</li>

<li>The <a

href="http://rom.usno.navy.mil/archives/leapsecs.html">Leap

-Second Discussion List</a> covers <a

-href="http://www.findarticles.com/cf_0/m0BPW/11_10/57821998/p1/article.jhtml">McCarthy

-and Klepczynski's proposal to discontinue leap seconds</a>.

+Second Discussion List</a> covers McCarthy and Klepczynski's proposal

+to discontinue leap seconds, published in <a

+href="http://www.gpsworld.com/">GPS World</a> <strong>10</strong>, 11

+(1999-11), 50–57.

This proposal is being studied by the URSI Commission J <a

href="http://space.mit.edu/URSI/leapsecond.html">Working Group on the

Leap Second</a>, and the IAU

-has plans to report on this proposal by 2003.</li>

+has plans to report on this proposal in 2003.</li>

</ul>

<h2>Time notation</h2>

<ul>

@@ -359,10 +389,11 @@ maintainers.</li>

</ul>

<h2>Related indexes</h2>

<ul>

+<li><a href="tz-art.htm">Time and the Arts</a></li>

<li><a href="http://dmoz.org/Reference/Time/">Open Directory -

Reference: Time</a></li>

-<li><a href="tz-art.htm">Time and the Arts</a></li>

-<li><a href="http://dir.yahoo.com/Science/Measurements_and_Units/Time/Time_Zones/">Yahoo! - Science:Measurements and Units:Time:Time Zones</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/Time_Zones/">Yahoo! Science > Measurements and Units > Time > Time Zones</a></li>

</ul>

</body>

</html>