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Time Zone Database
<!doctype html> <html> <head> <title>Time Zone Database</title> <meta charset="utf-8" /> <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <link rel="stylesheet" href="/_css/2022/iana_website.css"/> <link rel="shortcut icon" type="image/ico" href="/_img/bookmark_icon.ico"/> <script type="text/javascript" src="/_js/jquery.js"></script> <script type="text/javascript" src="/_js/iana.js"></script> </head> <body> <header> <div id="header"> <div id="logo"> <a href="/"><img src="/_img/2022/iana-logo-header.svg" alt="Homepage"/></a> </div> <div class="navigation"> <ul> <li><a href="/domains">Domains</a></li> <li><a href="/protocols">Protocols</a></li> <li><a href="/numbers">Numbers</a></li> <!-- <li><a href="/news">News</a></li>--> <li><a href="/about">About</a></li> </ul> </div> </div> </header> <div id="body"> <article class="hemmed sidenav"> <main> <h1>Time Zone Database</h1> <p>The Time Zone Database (often called <tt>tz</tt> or <tt>zoneinfo</tt>) contains code and data that represent the history of local time for many representative locations around the globe. It is updated periodically to reflect changes made by political bodies to time zone boundaries, UTC offsets, and daylight-saving rules. Its management procedure is documented in <a href="/go/rfc6557">BCP 175: Procedures for Maintaining the Time Zone Database</a>.</p> <p></p> <h2>Latest version</h2> <div id="timezone_version"> <span id="version">2024b</span> <span id="date">(Released 2024-09-04)</span> </div> <table class="iana-table"> <thead> <tr> <th>File</th> <th>Description</th> </tr> </thead> <tr> <td><a href="https://data.iana.org/time-zones/releases/tzdb-2024b.tar.lz">tzdb-2024b.tar.lz</a> (531.6kb)</td> <td>Complete Distribution (Data, Code and Extras)</td> </tr> <tr> <td><a href="https://data.iana.org/time-zones/releases/tzdata2024b.tar.gz">tzdata2024b.tar.gz</a> (448.6kb)</td> <td>Data Only Distribution</td> </tr> <tr> <td><a href="https://data.iana.org/time-zones/releases/tzcode2024b.tar.gz">tzcode2024b.tar.gz</a> (298.5kb)</td> <td>Code Only Distribution</td> </tr> </table> <h2>Mailing Lists</h2> <ul> <li> <b>Announcements:</b> A low-volume announcement mailing list used for announcing updates to the Time Zone Database.<br/> <a href="https://lists.iana.org/postorius/lists/tz-announce.iana.org/">Subscribe/Unsubscribe</a><br/> <a href="https://lists.iana.org/hyperkitty/list/tz-announce@iana.org/latest">Archive</a> </li> <li> <b>Submissions and Discussion:</b> A higher volume discussion list used for discussing proposals for updates to the Database. Contributions to this list may be emailed to <a href="mailto:tz@iana.org">tz@iana.org</a>.<br/> <a href="https://lists.iana.org/postorius/lists/tz.iana.org/">Subscribe/Unsubscribe</a><br/> <a href="https://lists.iana.org/hyperkitty/list/tz@iana.org/latest">Archive</a> </li> </ul> <h2>Distribution</h2> <p>We provide access to the Time Zone Database via three methods:</p> <ul> <li>HTTP: <a href="https://www.iana.org/time-zones">https://www.iana.org/time-zones</a></li> <li>FTP: <a href="ftp://ftp.iana.org/tz/">ftp://ftp.iana.org/tz/</a></li> <li>Rsync: <a href="rsync://rsync.iana.org/tz/">rsync://rsync.iana.org/tz/</a></li> </ul> <h2>TZ Coordinator</h2> <p>The IESG-designated TZ Coordinators are Paul Eggert (primary) and Tim Parenti (secondary).</p> <h2>Further information</h2> <p>Further information on the Time Zone Database, including implementation details, is <a href="/time-zones/repository/tz-link.html">described in the code repository</a>. </main> <nav id="sidenav"> <div class="navigation_box"> <h2>Protocol Registries</h2> <ul> <li id="nav_prot_reg"><a href="/protocols">Protocol Registries</a></li> <li id="nav_prot_tz"><a href="/time-zones">Time Zone Database</a></li> <li id="nav_prot_performance"><a href="/performance/ietf-statistics">Performance</a></li> <li id="nav_prot_status"><a href="/performance/ietf-draft-status">IETF Draft Status</a></li> </ul> </div> </nav> </article> </div> <footer> <div id="footer"> <table class="navigation"> <tr> <td class="section"><a href="/domains">Domain Names</a></td> <td class="subsection"> <ul> <li><a href="/domains/root">Root Zone Registry</a></li> <li><a href="/domains/int">.INT Registry</a></li> <li><a href="/domains/arpa">.ARPA Registry</a></li> <li><a href="/domains/idn-tables">IDN Repository</a></li> </ul> </td> </tr> <tr> <td class="section"><a href="/numbers">Number Resources</a></td> <td class="subsection"> <ul> <li><a href="/abuse">Abuse Information</a></li> </ul> </td> </tr> <tr> <td class="section"><a href="/protocols">Protocols</a></td> <td class="subsection"> <ul> <li><a href="/protocols">Protocol Registries</a></li> <li><a href="/time-zones">Time Zone Database</a></li> </ul> </td> </tr> <tr> <td class="section"><a href="/about">About Us</a></td> <td class="subsection"> <ul> <li><a href="/performance">Performance</a></li> <li><a href="/reports">Reports</a></li> <li><a href="/reviews">Reviews</a></li> <li><a href="/about/excellence">Excellence</a></li> <!-- <li><a href="/news">News</a></li>--> <li><a href="/contact">Contact Us</a></li> </ul> </td> </tr> </table> <div id="custodian"> <p>The IANA functions coordinate the Internet鈥檚 globally unique identifiers, and are provided by <a href="http://pti.icann.org">Public Technical Identifiers</a>, an affiliate of <a href="http://www.icann.org/">ICANN</a>.</p> </div> <div id="legalnotice"> <ul> <li><a href="https://www.icann.org/privacy/policy">Privacy Policy</a></li> <li><a href="https://www.icann.org/privacy/tos">Terms of Service</a></li> </ul> </div> </div> </footer> <script> $(document).ready(function() { $("#nav_prot_tz").addClass("selected") }); </script> </body> </html>