* tz-link.htm: Update URLs. Prefer https: to ftp: for security. Remove broken links to worldtime.io and solarsystem.nasa.gov. Remove links to Shanks books, which are out of print. Add links to RFC 7946 and to GeoPlanet. --- tz-link.htm | 65 +++++++++++++++++++++++++++---------------------------------- 1 file changed, 29 insertions(+), 36 deletions(-) diff --git a/tz-link.htm b/tz-link.htm index 1d15424..8f8235f 100644 --- a/tz-link.htm +++ b/tz-link.htm @@ -10,11 +10,11 @@ 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="2016-12-12"> +<meta name="DC.Date" content="2017-02-23"> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time"> <meta name="DC.Identifier" - content="http://www.iana.org/time-zones/repository/tz-link.htm"> + content="https://www.iana.org/time-zones/repository/tz-link.htm"> <meta name="Keywords" content="database,daylight saving,DST,time zone,timezone,tz,zoneinfo"> </head> @@ -65,10 +65,9 @@ title="Advanced Interactive eXecutive">AIX</abbr></a>, <a href="https://en.wikipedia.org/wiki/BlackBerry_10">BlackBerry 10</a>, <a href="http://www.apple.com/ios/"><abbr title="iPhone OS">iOS</abbr></a>, -<a href="http://www.apple.com/macos/"><abbr -title="Mac Operating System">macOS</abbr></a>, +<a href="http://www.apple.com/macos/">macOS</a>, <a href="https://www.microsoft.com/en-us/windows">Microsoft Windows</a>, -<a href="http://www.hp.com/go/openvms/">Open<abbr +<a href="https://www.hpe.com/info/openvms">Open<abbr title="Virtual Memory System">VMS</abbr></a>, <a href="https://www.oracle.com/database/index.html">Oracle Database</a>, and <a href="https://www.oracle.com/solaris">Oracle Solaris</a>.</p> @@ -113,20 +112,22 @@ the latest release's two to a <abbr>GNU</abbr>/Linux or similar host.</p> <pre style="margin-left: 2em"><code>mkdir tzdb cd tzdb -<a href="https://www.gnu.org/software/wget/">wget</a> --retr-symlinks 'ftp://ftp.iana.org/tz/tz*-latest.tar.gz' +<a href="https://www.gnu.org/software/wget/">wget</a> https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz +wget https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz <a href="https://www.gnu.org/software/gzip/">gzip</a> -dc tzcode-latest.tar.gz | <a href="https://www.gnu.org/software/tar/">tar</a> -xf - gzip -dc tzdata-latest.tar.gz | tar -xf - </code></pre> <p>Alternatively, the following shell commands download the same release in a single-tarball format containing extra data useful for regression testing:</p> -<pre style="margin-left: 2em"><code>wget <a href="ftp://ftp.iana.org/tz/tzdb-latest.tar.lz">ftp://ftp.iana.org/tz/tzdb-latest.tar.lz</a> +<pre style="margin-left: 2em"><code>wget <a href="https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz">https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz</a> <a href="http://www.nongnu.org/lzip/">lzip</a> -dc tzdb-latest.tar.lz | tar -xf - </code></pre> -<p>These commands use convenience links to the latest of the -<a href="ftp://ftp.iana.org/tz/releases/"><abbr -title="File Transfer Protocol">FTP</abbr> releases</a> -of the <code><abbr>tz</abbr></code> database. +<p>These commands use convenience links to the latest release +of the <code><abbr>tz</abbr></code> database hosted by the +<a href="https://www.iana.org/time-zones">Time Zone Database website</a> +of the <a href="https://www.iana.org">Internet Assigned Numbers +Authority (IANA)</a>. Older releases are in files named <code>tzcode<var>V</var>.tar.gz</code>, <code>tzdata<var>V</var>.tar.gz</code>, and @@ -138,10 +139,10 @@ then <samp>za</samp> through <samp>zz</samp>, then <samp>zza</samp> through <samp>zzz</samp>, and so on). Since version 2016h, each release has contained a text file named "<samp>version</samp>" whose first (and currently only) line is the version. -The releases can also be obtained from the -<a href="http://www.iana.org/time-zones">Time Zone Database website</a> -of the <a href="http://www.iana.org">Internet Assigned Numbers -Authority (IANA)</a>.</p> +The releases are also available in an +<a href="ftp://ftp.iana.org/tz/releases/"><abbr +title="File Transfer Protocol">FTP</abbr> directory</a> via a +less-secure protocol .</p> <p>Alternatively, a development repository of code and data can be retrieved from <a href="https://github.com">GitHub</a> via the shell command:</p> @@ -166,7 +167,7 @@ send changes to the <a href="mailto:tz@iana.org">time zone mailing list</a>. You can also <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 +href="https://mm.icann.org/pipermail/tz/">archive of old messages</a>.</p> <p> If your government plans to change its time zone boundaries or @@ -243,9 +244,6 @@ Worldwide</a> lets you sort zone names and convert times.</li> calculates the current time difference between locations.</li> <li><a href="http://www.wx-now.com">Weather Now</a> lists the weather too.</li> <li><a href="http://www.thetimenow.com">The Time Now</a> also lists weather.</li> -<li><a href="https://worldtime.io">worldtime.io</a> -also contains data about time zone boundaries; it supports queries via place -names and shows location maps.</li> </ul> <h2 id="protocols">Network protocols for <code><abbr>tz</abbr></code> data</h2> <ul> @@ -502,7 +500,7 @@ download, compile and use <code>tz</code> releases. The Basic version is free.</li> <li><a href="http://veladg.com/velaterra.html">VelaTerra</a> is -an <abbr>OS X</abbr> program. Its developers +a macOS program. Its developers <a href="http://veladg.com/tzoffer.html">offer free licenses</a> to <code><abbr>tz</abbr></code> contributors.</li> </ul> @@ -510,14 +508,9 @@ licenses</a> to <code><abbr>tz</abbr></code> contributors.</li> <ul> <li><a href="http://www.astro.com/atlas">Time-zone Atlas</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://www.astrocom.com/astrology/books/american-atlas">one volume -for the <abbr>US</abbr></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>. +time zone history atlases also published in <a +href="http://astrocom.com/astrology-products/software/acs-atlas-software">software</a> +form by <a href="http://astrocom.com">ACS-Starcrafts</a>. These atlases are extensive but unreliable, as Shanks appears to have guessed many <abbr>UT</abbr> offsets and transitions. The atlases cite no sources and do not indicate which entries are guesswork.</li> @@ -586,8 +579,11 @@ sets of <code><abbr>tz</abbr></code> regions. This includes for all the world's regions</li> <li><a href="https://github.com/straup/whereonearth-timezone">Whereonearth-timezone</a> -is in <a href="http://geojson.org">GeoJSON</a> form, and combines the -the tz_world shapefiles with the GeoPlanet dataset.</li> +is in <a href="https://tools.ietf.org/html/rfc7946">GeoJSON</a> format +(Internet <abbr>RFC</abbr> 7946), and combines the +the tz_world shapefiles with the +<a href="https://developer.yahoo.com/geo/geoplanet/">GeoPlanet</a> +dataset.</li> </ul></li> <li>Programmatic interfaces that map geographical coordinates via tz_world to <code><abbr>tz</abbr></code> regions include: @@ -625,7 +621,7 @@ Commercial network API access is provided by <a href="https://askgeo.com">AskGeo</a> and <a href="https://www.geogarage.com/blog/news-1/post/geogarage-time-zone-api-31">GeoGarage</a>. Also, an <a -href="http://mm.icann.org/pipermail/tz/2016-October/024309.html">experimental +href="https://mm.icann.org/pipermail/tz/2016-October/024309.html">experimental server</a> is available for the TZDIST Geolocate Extension mentioned <a href="#TZDIST-Geolocate">above</a>.</li> <li>"<a @@ -783,7 +779,7 @@ Times</a> explains more abstruse astronomical time scales like <abbr title="Barycentric Dynamic Time">TDB</abbr>. <a href="http://www.ucolick.org/~sla/leapsecs/timescales.html">Time Scales</a> goes into more detail, particularly for historical variants.</li> -<li>The <a href="http://www.iau.org"><abbr +<li>The <a href="https://www.iau.org"><abbr title="International Astronomical Union">IAU</abbr></a>'s <a href="http://www.iausofa.org"><abbr title="Standards Of Fundamental Astronomy">SOFA</abbr></a> @@ -793,11 +789,8 @@ 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://solarsystem.nasa.gov/basics/bsf2-3.php">Basics of -Space Flight – Reference Systems – Time Conventions</a> -briefly explains interplanetary space flight timekeeping.</li> <li><a -href="http://www.giss.nasa.gov/tools/mars24/help/notes.html">Mars24 Sunclock +href="https://www.giss.nasa.gov/tools/mars24/help/notes.html">Mars24 Sunclock – Time on Mars</a> describes Airy Mean Time (<abbr>AMT</abbr>) and the diverse local time scales used by each landed mission on Mars.</li> -- 2.9.3