/en/sql-reference/statements/set-statements/set-time-zone/ Recent content in SET TIME ZONE on Vertica Documentation Hugo -- gohugo.io /en/sql-reference/statements/set-statements/set-time-zone/time-zone-names-setting-time-zone/ Mon, 01 Jan 0001 00:00:00 +0000 /en/sql-reference/statements/set-statements/set-time-zone/time-zone-names-setting-time-zone/ <p>The time zone names listed below are recognized by Vertica as valid settings for the SQL time zone (the TIME ZONE run-time parameter). <div class="alert admonition note" role="alert"> <h4 class="admonition-head">Note</h4> Time zone and daylight-saving rules are controlled by individual governments, and are subject to change. For the latest information, see <a href="https://www.ietf.org/timezones/tzdb-2018f/tz-link.html">Sources for Time Zone and Daylight Saving Time Data</a>. </div></p> <p>These names are not the same as the names shown in <code>/opt/vertica/share/timezonesets</code>, which are recognized by Vertica in date/time input values. The TIME ZONE names listed below imply a local Daylight Saving Time rule, where date/time input names represent a fixed offset from UTC.</p> <p>In many cases, the same zone has several names. These are grouped together. The list is sorted primarily by commonly used zone names.</p> <p>In addition to the names in the list, Vertica accepts time zone names as one of the following:</p> <ul> <li> <p><em><code>STDoffset</code></em></p> </li> <li> <p><em><code>STDoffsetDST</code></em></p> </li> </ul> <p>where <em><code>STD</code></em> is a zone abbreviation, <em><code>offset</code></em> is a numeric offset in hours west from UTC, and <em><code>DST</code></em> is an optional Daylight Saving Time zone abbreviation, assumed to stand for one hour ahead of the given offset.</p> <p>For example, if <code>EST5EDT</code> were not already a recognized zone name, Vertica accepts it as functionally equivalent to USA East Coast time. When a Daylight Saving Time zone name is present, Vertica assumes it uses USA time zone rules, so this feature is of limited use outside North America. <div class="admonition caution" role="alert"> <h4 class="admonition-head">Caution</h4> Be aware that this provision can lead to silently accepting invalid input, as there is no check on the reasonableness of the zone abbreviations. For example, <code>SET TIME ZONE TO FOOBANKO</code> works, leaving the system effectively using a rather peculiar abbreviation for GMT. </div></p> <h2 id="time-zone">Time zone</h2> <ul> <li> Africa </li> <li> America </li> <li> Antarctica </li> <li> Asia </li> <li> Atlantic </li> <li> Australia </li> <li> <p>CET</p> </li> <li> <p>EET</p> </li> <li> Etc/GMT <ul> <li> <p>GMT</p> </li> <li> <p>GMT+0</p> </li> <li> <p>GMT-0</p> </li> <li> <p>GMT0</p> </li> <li> <p>Greenwich</p> </li> <li> <p>Etc/Greenwich</p> </li> </ul> </li> <li> Europe </li> <li> <p>Factory</p> </li> <li> Indian </li> <li> <p>MET</p> </li> <li> Pacific </li> <li> <p>UCT Etc</p> </li> <li> <p>UCT</p> </li> <li> <p>UTC</p> <ul> <li> <p>Universal Zulu</p> </li> <li> <p>Etc/UTC</p> </li> <li> <p>Etc/Universal</p> </li> <li> <p>Etc/Zulu</p> </li> </ul> </li> <li> <p>WET</p> </li> </ul>