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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>52.94. pg_timezone_names</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="view-pg-timezone-abbrevs.html" title="52.93. pg_timezone_abbrevs" /><link rel="next" href="view-pg-user.html" title="52.95. pg_user" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">52.94. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_timezone_names</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="view-pg-timezone-abbrevs.html" title="52.93. pg_timezone_abbrevs">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="Chapter 52. System Catalogs">Up</a></td><th width="60%" align="center">Chapter 52. System Catalogs</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="view-pg-user.html" title="52.95. pg_user">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="VIEW-PG-TIMEZONE-NAMES"><div class="titlepage"><div><div><h2 class="title" style="clear: both">52.94. <code class="structname">pg_timezone_names</code></h2></div></div></div><a id="id-1.10.4.96.2" class="indexterm"></a><p>
The view <code class="structname">pg_timezone_names</code> provides a list
of time zone names that are recognized by <code class="command">SET TIMEZONE</code>,
along with their associated abbreviations, UTC offsets,
and daylight-savings status. (Technically,
<span class="productname">PostgreSQL</span> does not use UTC because leap
seconds are not handled.)
Unlike the abbreviations shown in <a class="link" href="view-pg-timezone-abbrevs.html" title="52.93. pg_timezone_abbrevs"><code class="structname">pg_timezone_abbrevs</code></a>, many of these names imply a set of daylight-savings transition
date rules. Therefore, the associated information changes across local DST
boundaries. The displayed information is computed based on the current
value of <code class="function">CURRENT_TIMESTAMP</code>.
</p><div class="table" id="id-1.10.4.96.4"><p class="title"><strong>Table 52.95. <code class="structname">pg_timezone_names</code> Columns</strong></p><div class="table-contents"><table class="table" summary="pg_timezone_names Columns" border="1"><colgroup><col /></colgroup><thead><tr><th class="catalog_table_entry"><p class="column_definition">
Column Type
</p>
<p>
Description
</p></th></tr></thead><tbody><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">name</code> <code class="type">text</code>
</p>
<p>
Time zone name
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">abbrev</code> <code class="type">text</code>
</p>
<p>
Time zone abbreviation
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">utc_offset</code> <code class="type">interval</code>
</p>
<p>
Offset from UTC (positive means east of Greenwich)
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">is_dst</code> <code class="type">bool</code>
</p>
<p>
True if currently observing daylight savings
</p></td></tr></tbody></table></div></div><br class="table-break" /></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="view-pg-timezone-abbrevs.html" title="52.93. pg_timezone_abbrevs">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="catalogs.html" title="Chapter 52. System Catalogs">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="view-pg-user.html" title="52.95. pg_user">Next</a></td></tr><tr><td width="40%" align="left" valign="top">52.93. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_timezone_abbrevs</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 52.95. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_user</code></td></tr></table></div></body></html>
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