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Postgres FD Implementation
Commit e893e875 authored by Tom Lane's avatar Tom Lane
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Update timezone documentation to reflect current reality: instead of 

giving tables of known timezone names, refer the user to the system views.
Joachim Wieland
parent 9adb2c49
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doc/src/sgml/datatype.sgml
View file @ e893e875
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.175 2006/09/16 16:18:11 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.176 2006/09/22 16:20:00 tgl Exp $ -->
<chapter id="datatype">
<title id="datatype-title">Data Types</title>
......@@ -1706,8 +1706,8 @@ SELECT b, char_length(b) FROM test2;
</table>
<para>
Refer to <xref linkend="datetime-appendix"> for a list of
time zone names that are recognized for input.
Refer to <xref linkend="datatype-timezones"> for more information on how
to specify time zones.
</para>
</sect3>
......@@ -2151,6 +2151,83 @@ January 8 04:05:06 1999 PST
parameter before being displayed to the client.
</para>
<para>
<productname>PostgreSQL</productname> allows you to specify time zones in
three different forms:
<itemizedlist>
<listitem>
<para>
A full time zone name, for example <literal>America/New_York</>.
The recognized time zone names are listed in the
<literal>pg_timezone_names</literal> view (see <xref
linkend="view-pg-timezone-names">).
<productname>PostgreSQL</productname> uses the widely-used
<literal>zic</> time zone data for this purpose, so the same
names are also recognized by much other software.
</para>
</listitem>
<listitem>
<para>
A time zone abbreviation, for example <literal>PST</>. Such a
specification merely defines a particular offset from UTC, in
contrast to full time zone names which may imply a set of daylight
savings transition-date rules as well. The recognized abbreviations
are listed in the <literal>pg_timezone_abbrevs</> view (see <xref
linkend="view-pg-timezone-abbrevs">). You cannot set the
configuration parameter <xref linkend="guc-timezone"> using a time
zone abbreviation, but you can use abbreviations in
date/time input values and with the <literal>AT TIME ZONE</>
operator.
</para>
</listitem>
<listitem>
<para>
In addition to the timezone names and abbreviations,
<productname>PostgreSQL</productname> will accept time zone
specifications of the form <replaceable>STD</><replaceable>offset</> or
<replaceable>STD</><replaceable>offset</><replaceable>DST</>, where
<replaceable>STD</> is a zone abbreviation, <replaceable>offset</> is a
numeric offset in hours west from UTC, and <replaceable>DST</> is an
optional daylight-savings zone abbreviation, assumed to stand for one
hour ahead of the given offset. For example, if <literal>EST5EDT</>
were not already a recognized zone name, it would be accepted and would
be functionally equivalent to USA East Coast time. When a
daylight-savings zone name is present, it is assumed to be used
according to USA time zone rules, so this feature is of limited use
outside North America. One should also be wary that this provision can
lead to silently accepting bogus input, since there is no check on the
reasonableness of the zone abbreviations. For example, <literal>SET
TIMEZONE TO FOOBAR0</> will work, leaving the system effectively using
a rather peculiar abbreviation for GMT.
</para>
</listitem>
</itemizedlist>
There is a conceptual and practical difference between the abbreviations
and the full names: abbreviations always represent a fixed offset from
UTC, whereas most of the full names imply a local daylight-savings time
rule and so have two possible UTC offsets. That's why you always have to
specify a date if you want to use full time zone names in <type>timetz</>
values. This is also the reason why you should set <xref
linkend="guc-timezone"> to a full time zone name: this way,
<productname>PostgreSQL</productname>
will always know the correct UTC offset for your region.
</para>
<para>
Note that timezone names are <emphasis>not</> used for date/time output
&mdash; all supported output formats use numeric timezone displays to
avoid ambiguity.
</para>
<para>
Neither full names nor abbreviations are hard-wired into the server;
they are obtained from configuration files stored under
<filename>.../share/timezone/</> and <filename>.../share/timezonesets/</>
of the installation directory
(see <xref linkend="datetime-config-files">).
</para>
<para>
The <xref linkend="guc-timezone"> configuration parameter can
be set in the file <filename>postgresql.conf</>, or in any of the
......@@ -2191,12 +2268,6 @@ January 8 04:05:06 1999 PST
</listitem>
</itemizedlist>
</para>
<para>
Refer to <xref linkend="datetime-appendix"> for a list of
available time zones.
</para>
</sect2>
<sect2 id="datatype-datetime-internals">
......@@ -3424,10 +3495,9 @@ SELECT * FROM pg_attribute
<listitem>
<para>
Missing features include XQuery, SQL/XML syntax (ISO/IEC
9075-14), and an <acronym>XML</> data type optimized for
<acronym>XML</> storage.
Missing features include XQuery, SQL/XML syntax (ISO/IEC
9075-14), and an <acronym>XML</> data type optimized for
<acronym>XML</> storage.
</para>
</listitem>
</varlistentry>
......
doc/src/sgml/datetime.sgml
View file @ e893e875
<!-- $PostgreSQL: pgsql/doc/src/sgml/datetime.sgml,v 2.52 2006/09/16 00:30:12 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datetime.sgml,v 2.53 2006/09/22 16:20:00 tgl Exp $ -->
<appendix id="datetime-appendix">
<title>Date/Time Support</title>
......@@ -359,1848 +359,6 @@
<primary>time zone</primary>
<secondary>input abbreviations</secondary>
</indexterm>
<para>
<xref linkend="datetime-timezone-input-table"> shows the time zone
abbreviations recognized by <productname>PostgreSQL</productname>
in date/time input values. These abbreviations are not
hard-wired into the server, but are obtained from a configuration
file (see <xref linkend="datetime-config-files">). Note that these
names are <emphasis>not</> used for date/time output &mdash; all supported
output formats use numeric timezone displays to avoid ambiguity.
</para>
<para>
In addition to these abbreviations, the full timezone names shown in
<xref linkend="datetime-timezone-full-names-table"> can be used
in date/time input values. There is a conceptual and
practical difference between the abbreviations and the full names:
abbreviations always represent a fixed offset from UTC, whereas most
of the full names imply a local daylight-savings time rule and so
have two possible UTC offsets. That's why
you always have to specify a date if you want to use full time zone
names in <type>timetz</> values.
</para>
<para>
The table is organized by time zone offset from <acronym>UTC</>,
rather than alphabetically. This is intended to facilitate
matching local usage with recognized abbreviations for cases where
these might differ.
</para>
<table id="datetime-timezone-input-table">
<title>Time Zone Abbreviations for Input</title>
<tgroup cols="3">
<thead>
<row>
<entry>Time Zone</entry>
<entry>Offset from UTC</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>NZDT</entry>
<entry>+13:00</entry>
<entry>New Zealand Daylight-Saving Time</entry>
</row>
<row>
<entry>IDLE</entry>
<entry>+12:00</entry>
<entry>International Date Line, East</entry>
</row>
<row>
<entry>NZST</entry>
<entry>+12:00</entry>
<entry>New Zealand Standard Time</entry>
</row>
<row>
<entry>NZT</entry>
<entry>+12:00</entry>
<entry>New Zealand Time</entry>
</row>
<row>
<entry>AESST</entry>
<entry>+11:00</entry>
<entry>Australia Eastern Summer Standard Time</entry>
</row>
<row>
<entry>ACSST</entry>
<entry>+10:30</entry>
<entry>Central Australia Summer Standard Time</entry>
</row>
<row>
<entry>CADT</entry>
<entry>+10:30</entry>
<entry>Central Australia Daylight-Saving Time</entry>
</row>
<row>
<entry>SADT</entry>
<entry>+10:30</entry>
<entry>South Australian Daylight-Saving Time</entry>
</row>
<row>
<entry>AEST</entry>
<entry>+10:00</entry>
<entry>Australia Eastern Standard Time</entry>
</row>
<row>
<entry>EAST</entry>
<entry>+10:00</entry>
<entry>East Australian Standard Time</entry>
</row>
<row>
<entry>GST</entry>
<entry>+10:00</entry>
<entry>Guam Standard Time, Russia zone 9</entry>
</row>
<row>
<entry>LIGT</entry>
<entry>+10:00</entry>
<entry>Melbourne, Australia</entry>
</row>
<row>
<entry>SAST</entry>
<entry>+09:30</entry>
<entry>South Australia Standard Time</entry>
</row>
<row>
<entry>CAST</entry>
<entry>+09:30</entry>
<entry>Central Australia Standard Time</entry>
</row>
<row>
<entry>AWSST</entry>
<entry>+09:00</entry>
<entry>Australia Western Summer Standard Time</entry>
</row>
<row>
<entry>JST</entry>
<entry>+09:00</entry>
<entry>Japan Standard Time, Russia zone 8</entry>
</row>
<row>
<entry>KST</entry>
<entry>+09:00</entry>
<entry>Korea Standard Time</entry>
</row>
<row>
<entry>MHT</entry>
<entry>+09:00</entry>
<entry>Kwajalein Time</entry>
</row>
<row>
<entry>WDT</entry>
<entry>+09:00</entry>
<entry>West Australian Daylight-Saving Time</entry>
</row>
<row>
<entry>MT</entry>
<entry>+08:30</entry>
<entry>Moluccas Time</entry>
</row>
<row>
<entry>AWST</entry>
<entry>+08:00</entry>
<entry>Australia Western Standard Time</entry>
</row>
<row>
<entry>CCT</entry>
<entry>+08:00</entry>
<entry>China Coastal Time</entry>
</row>
<row>
<entry>WADT</entry>
<entry>+08:00</entry>
<entry>West Australian Daylight-Saving Time</entry>
</row>
<row>
<entry>WST</entry>
<entry>+08:00</entry>
<entry>West Australian Standard Time</entry>
</row>
<row>
<entry>JT</entry>
<entry>+07:30</entry>
<entry>Java Time</entry>
</row>
<row>
<entry>ALMST</entry>
<entry>+07:00</entry>
<entry>Almaty Summer Time</entry>
</row>
<row>
<entry>WAST</entry>
<entry>+07:00</entry>
<entry>West Australian Standard Time</entry>
</row>
<row>
<entry>CXT</entry>
<entry>+07:00</entry>
<entry>Christmas (Island) Time</entry>
</row>
<row>
<entry>MMT</entry>
<entry>+06:30</entry>
<entry>Myanmar Time</entry>
</row>
<row>
<entry>ALMT</entry>
<entry>+06:00</entry>
<entry>Almaty Time</entry>
</row>
<row>
<entry>MAWT</entry>
<entry>+06:00</entry>
<entry>Mawson (Antarctica) Time</entry>
</row>
<row>
<entry>IOT</entry>
<entry>+05:00</entry>
<entry>Indian Chagos Time</entry>
</row>
<row>
<entry>MVT</entry>
<entry>+05:00</entry>
<entry>Maldives Island Time</entry>
</row>
<row>
<entry>TFT</entry>
<entry>+05:00</entry>
<entry>Kerguelen Time</entry>
</row>
<row>
<entry>AFT</entry>
<entry>+04:30</entry>
<entry>Afghanistan Time</entry>
</row>
<row>
<entry>EAST</entry>
<entry>+04:00</entry>
<entry>Antananarivo Summer Time</entry>
</row>
<row>
<entry>MUT</entry>
<entry>+04:00</entry>
<entry>Mauritius Island Time</entry>
</row>
<row>
<entry>RET</entry>
<entry>+04:00</entry>
<entry>Reunion Island Time</entry>
</row>
<row>
<entry>SCT</entry>
<entry>+04:00</entry>
<entry>Mahe Island Time</entry>
</row>
<row>
<entry>IRT, IT</entry>
<entry>+03:30</entry>
<entry>Iran Time</entry>
</row>
<row>
<entry>EAT</entry>
<entry>+03:00</entry>
<entry>Antananarivo, Comoro Time</entry>
</row>
<row>
<entry>BT</entry>
<entry>+03:00</entry>
<entry>Baghdad Time</entry>
</row>
<row>
<entry>EETDST</entry>
<entry>+03:00</entry>
<entry>Eastern Europe Daylight-Saving Time</entry>
</row>
<row>
<entry>HMT</entry>
<entry>+03:00</entry>
<entry>Hellas Mediterranean Time (?)</entry>
</row>
<row>
<entry>BDST</entry>
<entry>+02:00</entry>
<entry>British Double Summer Time</entry>
</row>
<row>
<entry>CEST</entry>
<entry>+02:00</entry>
<entry>Central European Summer Time</entry>
</row>
<row>
<entry>CETDST</entry>
<entry>+02:00</entry>
<entry>Central European Daylight-Saving Time</entry>
</row>
<row>
<entry>EET</entry>
<entry>+02:00</entry>
<entry>Eastern European Time, Russia zone 1</entry>
</row>
<row>
<entry>FWT</entry>
<entry>+02:00</entry>
<entry>French Winter Time</entry>
</row>
<row>
<entry>IST</entry>
<entry>+02:00</entry>
<entry>Israel Standard Time</entry>
</row>
<row>
<entry>MEST</entry>
<entry>+02:00</entry>
<entry>Middle European Summer Time</entry>
</row>
<row>
<entry>METDST</entry>
<entry>+02:00</entry>
<entry>Middle Europe Daylight-Saving Time</entry>
</row>
<row>
<entry>SST</entry>
<entry>+02:00</entry>
<entry>Swedish Summer Time</entry>
</row>
<row>
<entry>BST</entry>
<entry>+01:00</entry>
<entry>British Summer Time</entry>
</row>
<row>
<entry>CET</entry>
<entry>+01:00</entry>
<entry>Central European Time</entry>
</row>
<row>
<entry>DNT</entry>
<entry>+01:00</entry>
<entry><foreignphrase>Dansk Normal Tid</foreignphrase></entry>
</row>
<row>
<entry>FST</entry>
<entry>+01:00</entry>
<entry>French Summer Time</entry>
</row>
<row>
<entry>MET</entry>
<entry>+01:00</entry>
<entry>Middle European Time</entry>
</row>
<row>
<entry>MEWT</entry>
<entry>+01:00</entry>
<entry>Middle European Winter Time</entry>
</row>
<row>
<entry>MEZ</entry>
<entry>+01:00</entry>
<entry><foreignphrase>Mitteleuropäische Zeit</></entry>
</row>
<row>
<entry>NOR</entry>
<entry>+01:00</entry>
<entry>Norway Standard Time</entry>
</row>
<row>
<entry>SET</entry>
<entry>+01:00</entry>
<entry>Seychelles Time</entry>
</row>
<row>
<entry>SWT</entry>
<entry>+01:00</entry>
<entry>Swedish Winter Time</entry>
</row>
<row>
<entry>WETDST</entry>
<entry>+01:00</entry>
<entry>Western European Daylight-Saving Time</entry>
</row>
<row>
<entry>GMT</entry>
<entry>00:00</entry>
<entry>Greenwich Mean Time</entry>
</row>
<row>
<entry>UT</entry>
<entry>00:00</entry>
<entry>Universal Time</entry>
</row>
<row>
<entry>UTC</entry>
<entry>00:00</entry>
<entry>Universal Coordinated Time</entry>
</row>
<row>
<entry>Z</entry>
<entry>00:00</entry>
<entry>Same as UTC</entry>
</row>
<row>
<entry>ZULU</entry>
<entry>00:00</entry>
<entry>Same as UTC</entry>
</row>
<row>
<entry>WET</entry>
<entry>00:00</entry>
<entry>Western European Time</entry>
</row>
<row>
<entry>WAT</entry>
<entry>-01:00</entry>
<entry>West Africa Time</entry>
</row>
<row>
<entry>FNST</entry>
<entry>-01:00</entry>
<entry>Fernando de Noronha Summer Time</entry>
</row>
<row>
<entry>FNT</entry>
<entry>-02:00</entry>
<entry>Fernando de Noronha Time</entry>
</row>
<row>
<entry>BRST</entry>
<entry>-02:00</entry>
<entry>Brasilia Summer Time</entry>
</row>
<row>
<entry>NDT</entry>
<entry>-02:30</entry>
<entry>Newfoundland Daylight-Saving Time</entry>
</row>
<row>
<entry>ADT</entry>
<entry>-03:00</entry>
<entry>Atlantic Daylight-Saving Time</entry>
</row>
<row>
<entry>AWT</entry>
<entry>-03:00</entry>
<entry>(unknown)</entry>
</row>
<row>
<entry>BRT</entry>
<entry>-03:00</entry>
<entry>Brasilia Time</entry>
</row>
<row>
<entry>NFT</entry>
<entry>-03:30</entry>
<entry>Newfoundland Standard Time</entry>
</row>
<row>
<entry>NST</entry>
<entry>-03:30</entry>
<entry>Newfoundland Standard Time</entry>
</row>
<row>
<entry>AST</entry>
<entry>-04:00</entry>
<entry>Atlantic Standard Time (Canada)</entry>
</row>
<row>
<entry>ACST</entry>
<entry>-04:00</entry>
<entry>Atlantic/Porto Acre Summer Time</entry>
</row>
<row>
<entry>EDT</entry>
<entry>-04:00</entry>
<entry>Eastern Daylight-Saving Time</entry>
</row>
<!--
<row>
<entry>ZP4</entry>
<entry>-04:00</entry>
<entry>GMT +4 hours</entry>
</row>
-->
<row>
<entry>ACT</entry>
<entry>-05:00</entry>
<entry>Atlantic/Porto Acre Standard Time</entry>
</row>
<row>
<entry>CDT</entry>
<entry>-05:00</entry>
<entry>Central Daylight-Saving Time</entry>
</row>
<row>
<entry>EST</entry>
<entry>-05:00</entry>
<entry>Eastern Standard Time</entry>
</row>
<!--
<row>
<entry>ZP5</entry>
<entry>-05:00</entry>
<entry>GMT +5 hours</entry>
</row>
-->
<row>
<entry>CST</entry>
<entry>-06:00</entry>
<entry>Central Standard Time</entry>
</row>
<row>
<entry>MDT</entry>
<entry>-06:00</entry>
<entry>Mountain Daylight-Saving Time</entry>
</row>
<!--
<row>
<entry>ZP6</entry>
<entry>-06:00</entry>
<entry>GMT +6 hours</entry>
</row>
-->
<row>
<entry>MST</entry>
<entry>-07:00</entry>
<entry>Mountain Standard Time</entry>
</row>
<row>
<entry>PDT</entry>
<entry>-07:00</entry>
<entry>Pacific Daylight-Saving Time</entry>
</row>
<row>
<entry>AKDT</entry>
<entry>-08:00</entry>
<entry>Alaska Daylight-Saving Time</entry>
</row>
<row>
<entry>PST</entry>
<entry>-08:00</entry>
<entry>Pacific Standard Time</entry>
</row>
<row>
<entry>YDT</entry>
<entry>-08:00</entry>
<entry>Yukon Daylight-Saving Time</entry>
</row>
<row>
<entry>AKST</entry>
<entry>-09:00</entry>
<entry>Alaska Standard Time</entry>
</row>
<row>
<entry>HDT</entry>
<entry>-09:00</entry>
<entry>Hawaii/Alaska Daylight-Saving Time</entry>
</row>
<row>
<entry>YST</entry>
<entry>-09:00</entry>
<entry>Yukon Standard Time</entry>
</row>
<row>
<entry>MART</entry>
<entry>-09:30</entry>
<entry>Marquesas Time</entry>
</row>
<row>
<entry>AHST</entry>
<entry>-10:00</entry>
<entry>Alaska/Hawaii Standard Time</entry>
</row>
<row>
<entry>HST</entry>
<entry>-10:00</entry>
<entry>Hawaii Standard Time</entry>
</row>
<row>
<entry>CAT</entry>
<entry>-10:00</entry>
<entry>Central Alaska Time</entry>
</row>
<row>
<entry>NT</entry>
<entry>-11:00</entry>
<entry>Nome Time</entry>
</row>
<row>
<entry>IDLW</entry>
<entry>-12:00</entry>
<entry>International Date Line, West</entry>
</row>
</tbody>
</tgroup>
</table>
<indexterm>
<primary>time zone</primary>
<secondary>configuration names</secondary>
</indexterm>
<para>
<xref linkend="datetime-timezone-full-names-table"> shows the time zone
names recognized by <productname>PostgreSQL</productname> as valid
settings for the <xref linkend="guc-timezone"> parameter. These names
are not hard-wired into the server, but are in fact names of configuration
files stored under <filename>.../share/timezone/</> of the installation
directory.
</para>
<para>
In many cases there are several equivalent names for the same zone.
These are listed on the same line. The table is primarily sorted
by the name of the principal city of the zone.
</para>
<table id="datetime-timezone-full-names-table">
<title>Time Zone Names for setting <varname>timezone</></title>
<tgroup cols="1">
<thead>
<row>
<entry>Time Zone</entry>
</row>
</thead>
<tbody>
<row>
<entry>Africa/Abidjan</entry>
</row>
<row>
<entry>Africa/Accra</entry>
</row>
<row>
<entry>Africa/Addis_Ababa</entry>
</row>
<row>
<entry>Africa/Algiers</entry>
</row>
<row>
<entry>Africa/Asmera</entry>
</row>
<row>
<entry>Africa/Bamako</entry>
</row>
<row>
<entry>Africa/Bangui</entry>
</row>
<row>
<entry>Africa/Banjul</entry>
</row>
<row>
<entry>Africa/Bissau</entry>
</row>
<row>
<entry>Africa/Blantyre</entry>
</row>
<row>
<entry>Africa/Brazzaville</entry>
</row>
<row>
<entry>Africa/Bujumbura</entry>
</row>
<row>
<entry>Africa/Cairo Egypt</entry>
</row>
<row>
<entry>Africa/Casablanca</entry>
</row>
<row>
<entry>Africa/Ceuta</entry>
</row>
<row>
<entry>Africa/Conakry</entry>
</row>
<row>
<entry>Africa/Dakar</entry>
</row>
<row>
<entry>Africa/Dar_es_Salaam</entry>
</row>
<row>
<entry>Africa/Djibouti</entry>
</row>
<row>
<entry>Africa/Douala</entry>
</row>
<row>
<entry>Africa/El_Aaiun</entry>
</row>
<row>
<entry>Africa/Freetown</entry>
</row>
<row>
<entry>Africa/Gaborone</entry>
</row>
<row>
<entry>Africa/Harare</entry>
</row>
<row>
<entry>Africa/Johannesburg</entry>
</row>
<row>
<entry>Africa/Kampala</entry>
</row>
<row>
<entry>Africa/Khartoum</entry>
</row>
<row>
<entry>Africa/Kigali</entry>
</row>
<row>
<entry>Africa/Kinshasa</entry>
</row>
<row>
<entry>Africa/Lagos</entry>
</row>
<row>
<entry>Africa/Libreville</entry>
</row>
<row>
<entry>Africa/Lome</entry>
</row>
<row>
<entry>Africa/Luanda</entry>
</row>
<row>
<entry>Africa/Lubumbashi</entry>
</row>
<row>
<entry>Africa/Lusaka</entry>
</row>
<row>
<entry>Africa/Malabo</entry>
</row>
<row>
<entry>Africa/Maputo</entry>
</row>
<row>
<entry>Africa/Maseru</entry>
</row>
<row>
<entry>Africa/Mbabane</entry>
</row>
<row>
<entry>Africa/Mogadishu</entry>
</row>
<row>
<entry>Africa/Monrovia</entry>
</row>
<row>
<entry>Africa/Nairobi</entry>
</row>
<row>
<entry>Africa/Ndjamena</entry>
</row>
<row>
<entry>Africa/Niamey</entry>
</row>
<row>
<entry>Africa/Nouakchott</entry>
</row>
<row>
<entry>Africa/Ouagadougou</entry>
</row>
<row>
<entry>Africa/Porto-Novo</entry>
</row>
<row>
<entry>Africa/Sao_Tome</entry>
</row>
<row>
<entry>Africa/Timbuktu</entry>
</row>
<row>
<entry>Africa/Tripoli Libya</entry>
</row>
<row>
<entry>Africa/Tunis</entry>
</row>
<row>
<entry>Africa/Windhoek</entry>
</row>
<row>
<entry>America/Adak America/Atka US/Aleutian</entry>
</row>
<row>
<entry>America/Anchorage SystemV/YST9YDT US/Alaska</entry>
</row>
<row>
<entry>America/Anguilla</entry>
</row>
<row>
<entry>America/Antigua</entry>
</row>
<row>
<entry>America/Araguaina</entry>
</row>
<row>
<entry>America/Aruba</entry>
</row>
<row>
<entry>America/Asuncion</entry>
</row>
<row>
<entry>America/Bahia</entry>
</row>
<row>
<entry>America/Barbados</entry>
</row>
<row>
<entry>America/Belem</entry>
</row>
<row>
<entry>America/Belize</entry>
</row>
<row>
<entry>America/Boa_Vista</entry>
</row>
<row>
<entry>America/Bogota</entry>
</row>
<row>
<entry>America/Boise</entry>
</row>
<row>
<entry>America/Buenos_Aires</entry>
</row>
<row>
<entry>America/Cambridge_Bay</entry>
</row>
<row>
<entry>America/Campo_Grande</entry>
</row>
<row>
<entry>America/Cancun</entry>
</row>
<row>
<entry>America/Caracas</entry>
</row>
<row>
<entry>America/Catamarca</entry>
</row>
<row>
<entry>America/Cayenne</entry>
</row>
<row>
<entry>America/Cayman</entry>
</row>
<row>
<entry>America/Chicago CST6CDT SystemV/CST6CDT US/Central</entry>
</row>
<row>
<entry>America/Chihuahua</entry>
</row>
<row>
<entry>America/Cordoba America/Rosario</entry>
</row>
<row>
<entry>America/Costa_Rica</entry>
</row>
<row>
<entry>America/Cuiaba</entry>
</row>
<row>
<entry>America/Curacao</entry>
</row>
<row>
<entry>America/Danmarkshavn</entry>
</row>
<row>
<entry>America/Dawson</entry>
</row>
<row>
<entry>America/Dawson_Creek</entry>
</row>
<row>
<entry>America/Denver MST7MDT SystemV/MST7MDT US/Mountain America/Shiprock Navajo</entry>
</row>
<row>
<entry>America/Detroit US/Michigan</entry>
</row>
<row>
<entry>America/Dominica</entry>
</row>
<row>
<entry>America/Edmonton Canada/Mountain</entry>
</row>
<row>
<entry>America/Eirunepe</entry>
</row>
<row>
<entry>America/El_Salvador</entry>
</row>
<row>
<entry>America/Ensenada America/Tijuana Mexico/BajaNorte</entry>
</row>
<row>
<entry>America/Fortaleza</entry>
</row>
<row>
<entry>America/Glace_Bay</entry>
</row>
<row>
<entry>America/Godthab</entry>
</row>
<row>
<entry>America/Goose_Bay</entry>
</row>
<row>
<entry>America/Grand_Turk</entry>
</row>
<row>
<entry>America/Grenada</entry>
</row>
<row>
<entry>America/Guadeloupe</entry>
</row>
<row>
<entry>America/Guatemala</entry>
</row>
<row>
<entry>America/Guayaquil</entry>
</row>
<row>
<entry>America/Guyana</entry>
</row>
<row>
<entry>America/Halifax Canada/Atlantic SystemV/AST4ADT</entry>
</row>
<row>
<entry>America/Havana Cuba</entry>
</row>
<row>
<entry>America/Hermosillo</entry>
</row>
<row>
<entry>America/Indiana/Indianapolis America/Indianapolis America/Fort_Wayne EST SystemV/EST5 US/East-Indiana</entry>
</row>
<row>
<entry>America/Indiana/Knox America/Knox_IN US/Indiana-Starke</entry>
</row>
<row>
<entry>America/Indiana/Marengo</entry>
</row>
<row>
<entry>America/Indiana/Vevay</entry>
</row>
<row>
<entry>America/Inuvik</entry>
</row>
<row>
<entry>America/Iqaluit</entry>
</row>
<row>
<entry>America/Jamaica Jamaica</entry>
</row>
<row>
<entry>America/Jujuy</entry>
</row>
<row>
<entry>America/Juneau</entry>
</row>
<row>
<entry>America/Kentucky/Louisville America/Louisville</entry>
</row>
<row>
<entry>America/Kentucky/Monticello</entry>
</row>
<row>
<entry>America/La_Paz</entry>
</row>
<row>
<entry>America/Lima</entry>
</row>
<row>
<entry>America/Los_Angeles PST8PDT SystemV/PST8PDT US/Pacific US/Pacific-New</entry>
</row>
<row>
<entry>America/Maceio</entry>
</row>
<row>
<entry>America/Managua</entry>
</row>
<row>
<entry>America/Manaus Brazil/West</entry>
</row>
<row>
<entry>America/Martinique</entry>
</row>
<row>
<entry>America/Mazatlan Mexico/BajaSur</entry>
</row>
<row>
<entry>America/Mendoza</entry>
</row>
<row>
<entry>America/Menominee</entry>
</row>
<row>
<entry>America/Merida</entry>
</row>
<row>
<entry>America/Mexico_City Mexico/General</entry>
</row>
<row>
<entry>America/Miquelon</entry>
</row>
<row>
<entry>America/Monterrey</entry>
</row>
<row>
<entry>America/Montevideo</entry>
</row>
<row>
<entry>America/Montreal</entry>
</row>
<row>
<entry>America/Montserrat</entry>
</row>
<row>
<entry>America/Nassau</entry>
</row>
<row>
<entry>America/New_York EST5EDT SystemV/EST5EDT US/Eastern</entry>
</row>
<row>
<entry>America/Nipigon</entry>
</row>
<row>
<entry>America/Nome</entry>
</row>
<row>
<entry>America/Noronha Brazil/DeNoronha</entry>
</row>
<row>
<entry>America/North_Dakota/Center</entry>
</row>
<row>
<entry>America/Panama</entry>
</row>
<row>
<entry>America/Pangnirtung</entry>
</row>
<row>
<entry>America/Paramaribo</entry>
</row>
<row>
<entry>America/Phoenix MST SystemV/MST7 US/Arizona</entry>
</row>
<row>
<entry>America/Port-au-Prince</entry>
</row>
<row>
<entry>America/Port_of_Spain</entry>
</row>
<row>
<entry>America/Porto_Acre America/Rio_Branco Brazil/Acre</entry>
</row>
<row>
<entry>America/Porto_Velho</entry>
</row>
<row>
<entry>America/Puerto_Rico SystemV/AST4</entry>
</row>
<row>
<entry>America/Rainy_River</entry>
</row>
<row>
<entry>America/Rankin_Inlet</entry>
</row>
<row>
<entry>America/Recife</entry>
</row>
<row>
<entry>America/Regina Canada/East-Saskatchewan Canada/Saskatchewan SystemV/CST6</entry>
</row>
<row>
<entry>America/Santiago Chile/Continental</entry>
</row>
<row>
<entry>America/Santo_Domingo</entry>
</row>
<row>
<entry>America/Sao_Paulo Brazil/East</entry>
</row>
<row>
<entry>America/Scoresbysund</entry>
</row>
<row>
<entry>America/St_Johns Canada/Newfoundland</entry>
</row>
<row>
<entry>America/St_Kitts</entry>
</row>
<row>
<entry>America/St_Lucia</entry>
</row>
<row>
<entry>America/St_Thomas America/Virgin</entry>
</row>
<row>
<entry>America/St_Vincent</entry>
</row>
<row>
<entry>America/Swift_Current</entry>
</row>
<row>
<entry>America/Tegucigalpa</entry>
</row>
<row>
<entry>America/Thule</entry>
</row>
<row>
<entry>America/Thunder_Bay</entry>
</row>
<row>
<entry>America/Toronto Canada/Eastern</entry>
</row>
<row>
<entry>America/Tortola</entry>
</row>
<row>
<entry>America/Vancouver Canada/Pacific</entry>
</row>
<row>
<entry>America/Whitehorse Canada/Yukon</entry>
</row>
<row>
<entry>America/Winnipeg Canada/Central</entry>
</row>
<row>
<entry>America/Yakutat</entry>
</row>
<row>
<entry>America/Yellowknife</entry>
</row>
<row>
<entry>Antarctica/Casey</entry>
</row>
<row>
<entry>Antarctica/Davis</entry>
</row>
<row>
<entry>Antarctica/DumontDUrville</entry>
</row>
<row>
<entry>Antarctica/Mawson</entry>
</row>
<row>
<entry>Antarctica/McMurdo Antarctica/South_Pole</entry>
</row>
<row>
<entry>Antarctica/Palmer</entry>
</row>
<row>
<entry>Antarctica/Rothera</entry>
</row>
<row>
<entry>Antarctica/Syowa</entry>
</row>
<row>
<entry>Antarctica/Vostok</entry>
</row>
<row>
<entry>Asia/Aden</entry>
</row>
<row>
<entry>Asia/Almaty</entry>
</row>
<row>
<entry>Asia/Amman</entry>
</row>
<row>
<entry>Asia/Anadyr</entry>
</row>
<row>
<entry>Asia/Aqtau</entry>
</row>
<row>
<entry>Asia/Aqtobe</entry>
</row>
<row>
<entry>Asia/Ashgabat Asia/Ashkhabad</entry>
</row>
<row>
<entry>Asia/Baghdad</entry>
</row>
<row>
<entry>Asia/Bahrain</entry>
</row>
<row>
<entry>Asia/Baku</entry>
</row>
<row>
<entry>Asia/Bangkok</entry>
</row>
<row>
<entry>Asia/Beirut</entry>
</row>
<row>
<entry>Asia/Bishkek</entry>
</row>
<row>
<entry>Asia/Brunei</entry>
</row>
<row>
<entry>Asia/Calcutta</entry>
</row>
<row>
<entry>Asia/Choibalsan</entry>
</row>
<row>
<entry>Asia/Chongqing Asia/Chungking</entry>
</row>
<row>
<entry>Asia/Colombo</entry>
</row>
<row>
<entry>Asia/Dacca Asia/Dhaka</entry>
</row>
<row>
<entry>Asia/Damascus</entry>
</row>
<row>
<entry>Asia/Dili</entry>
</row>
<row>
<entry>Asia/Dubai</entry>
</row>
<row>
<entry>Asia/Dushanbe</entry>
</row>
<row>
<entry>Asia/Gaza</entry>
</row>
<row>
<entry>Asia/Harbin</entry>
</row>
<row>
<entry>Asia/Hong_Kong Hongkong</entry>
</row>
<row>
<entry>Asia/Hovd</entry>
</row>
<row>
<entry>Asia/Irkutsk</entry>
</row>
<row>
<entry>Asia/Jakarta</entry>
</row>
<row>
<entry>Asia/Jayapura</entry>
</row>
<row>
<entry>Asia/Jerusalem Asia/Tel_Aviv Israel</entry>
</row>
<row>
<entry>Asia/Kabul</entry>
</row>
<row>
<entry>Asia/Kamchatka</entry>
</row>
<row>
<entry>Asia/Karachi</entry>
</row>
<row>
<entry>Asia/Kashgar</entry>
</row>
<row>
<entry>Asia/Katmandu</entry>
</row>
<row>
<entry>Asia/Krasnoyarsk</entry>
</row>
<row>
<entry>Asia/Kuala_Lumpur</entry>
</row>
<row>
<entry>Asia/Kuching</entry>
</row>
<row>
<entry>Asia/Kuwait</entry>
</row>
<row>
<entry>Asia/Macao Asia/Macau</entry>
</row>
<row>
<entry>Asia/Magadan</entry>
</row>
<row>
<entry>Asia/Makassar Asia/Ujung_Pandang</entry>
</row>
<row>
<entry>Asia/Manila</entry>
</row>
<row>
<entry>Asia/Muscat</entry>
</row>
<row>
<entry>Asia/Nicosia Europe/Nicosia</entry>
</row>
<row>
<entry>Asia/Novosibirsk</entry>
</row>
<row>
<entry>Asia/Omsk</entry>
</row>
<row>
<entry>Asia/Oral</entry>
</row>
<row>
<entry>Asia/Phnom_Penh</entry>
</row>
<row>
<entry>Asia/Pontianak</entry>
</row>
<row>
<entry>Asia/Pyongyang</entry>
</row>
<row>
<entry>Asia/Qatar</entry>
</row>
<row>
<entry>Asia/Qyzylorda</entry>
</row>
<row>
<entry>Asia/Rangoon</entry>
</row>
<row>
<entry>Asia/Riyadh</entry>
</row>
<row>
<entry>Asia/Riyadh87 Mideast/Riyadh87</entry>
</row>
<row>
<entry>Asia/Riyadh88 Mideast/Riyadh88</entry>
</row>
<row>
<entry>Asia/Riyadh89 Mideast/Riyadh89</entry>
</row>
<row>
<entry>Asia/Saigon</entry>
</row>
<row>
<entry>Asia/Sakhalin</entry>
</row>
<row>
<entry>Asia/Samarkand</entry>
</row>
<row>
<entry>Asia/Seoul ROK</entry>
</row>
<row>
<entry>Asia/Shanghai PRC</entry>
</row>
<row>
<entry>Asia/Singapore Singapore</entry>
</row>
<row>
<entry>Asia/Taipei ROC</entry>
</row>
<row>
<entry>Asia/Tashkent</entry>
</row>
<row>
<entry>Asia/Tbilisi</entry>
</row>
<row>
<entry>Asia/Tehran Iran</entry>
</row>
<row>
<entry>Asia/Thimbu Asia/Thimphu</entry>
</row>
<row>
<entry>Asia/Tokyo Japan</entry>
</row>
<row>
<entry>Asia/Ulaanbaatar Asia/Ulan_Bator</entry>
</row>
<row>
<entry>Asia/Urumqi</entry>
</row>
<row>
<entry>Asia/Vientiane</entry>
</row>
<row>
<entry>Asia/Vladivostok</entry>
</row>
<row>
<entry>Asia/Yakutsk</entry>
</row>
<row>
<entry>Asia/Yekaterinburg</entry>
</row>
<row>
<entry>Asia/Yerevan</entry>
</row>
<row>
<entry>Atlantic/Azores</entry>
</row>
<row>
<entry>Atlantic/Bermuda</entry>
</row>
<row>
<entry>Atlantic/Canary</entry>
</row>
<row>
<entry>Atlantic/Cape_Verde</entry>
</row>
<row>
<entry>Atlantic/Faeroe</entry>
</row>
<row>
<entry>Atlantic/Madeira</entry>
</row>
<row>
<entry>Atlantic/Reykjavik Iceland</entry>
</row>
<row>
<entry>Atlantic/South_Georgia</entry>
</row>
<row>
<entry>Atlantic/St_Helena</entry>
</row>
<row>
<entry>Atlantic/Stanley</entry>
</row>
<row>
<entry>Australia/ACT Australia/Canberra Australia/NSW Australia/Sydney</entry>
</row>
<row>
<entry>Australia/Adelaide Australia/South</entry>
</row>
<row>
<entry>Australia/Brisbane Australia/Queensland</entry>
</row>
<row>
<entry>Australia/Broken_Hill Australia/Yancowinna</entry>
</row>
<row>
<entry>Australia/Darwin Australia/North</entry>
</row>
<row>
<entry>Australia/Hobart Australia/Tasmania</entry>
</row>
<row>
<entry>Australia/LHI Australia/Lord_Howe</entry>
</row>
<row>
<entry>Australia/Lindeman</entry>
</row>
<row>
<entry>Australia/Melbourne Australia/Victoria</entry>
</row>
<row>
<entry>Australia/Perth Australia/West</entry>
</row>
<row>
<entry>CET</entry>
</row>
<row>
<entry>EET</entry>
</row>
<row>
<entry>Etc/GMT+1</entry>
</row>
<row>
<entry>Etc/GMT+2</entry>
</row>
<row>
<entry>Etc/GMT+3</entry>
</row>
<row>
<entry>Etc/GMT+4</entry>
</row>
<row>
<entry>Etc/GMT+5</entry>
</row>
<row>
<entry>Etc/GMT+6</entry>
</row>
<row>
<entry>Etc/GMT+7</entry>
</row>
<row>
<entry>Etc/GMT+8</entry>
</row>
<row>
<entry>Etc/GMT+9</entry>
</row>
<row>
<entry>Etc/GMT+10</entry>
</row>
<row>
<entry>Etc/GMT+11</entry>
</row>
<row>
<entry>Etc/GMT+12</entry>
</row>
<row>
<entry>Etc/GMT-1</entry>
</row>
<row>
<entry>Etc/GMT-2</entry>
</row>
<row>
<entry>Etc/GMT-3</entry>
</row>
<row>
<entry>Etc/GMT-4</entry>
</row>
<row>
<entry>Etc/GMT-5</entry>
</row>
<row>
<entry>Etc/GMT-6</entry>
</row>
<row>
<entry>Etc/GMT-7</entry>
</row>
<row>
<entry>Etc/GMT-8</entry>
</row>
<row>
<entry>Etc/GMT-9</entry>
</row>
<row>
<entry>Etc/GMT-10</entry>
</row>
<row>
<entry>Etc/GMT-11</entry>
</row>
<row>
<entry>Etc/GMT-12</entry>
</row>
<row>
<entry>Etc/GMT-13</entry>
</row>
<row>
<entry>Etc/GMT-14</entry>
</row>
<row>
<entry>Europe/Amsterdam</entry>
</row>
<row>
<entry>Europe/Andorra</entry>
</row>
<row>
<entry>Europe/Athens</entry>
</row>
<row>
<entry>Europe/Belfast</entry>
</row>
<row>
<entry>Europe/Belgrade Europe/Ljubljana Europe/Sarajevo Europe/Skopje Europe/Zagreb</entry>
</row>
<row>
<entry>Europe/Berlin</entry>
</row>
<row>
<entry>Europe/Brussels</entry>
</row>
<row>
<entry>Europe/Bucharest</entry>
</row>
<row>
<entry>Europe/Budapest</entry>
</row>
<row>
<entry>Europe/Chisinau Europe/Tiraspol</entry>
</row>
<row>
<entry>Europe/Copenhagen</entry>
</row>
<row>
<entry>Europe/Dublin Eire</entry>
</row>
<row>
<entry>Europe/Gibraltar</entry>
</row>
<row>
<entry>Europe/Helsinki</entry>
</row>
<row>
<entry>Europe/Istanbul Asia/Istanbul Turkey</entry>
</row>
<row>
<entry>Europe/Kaliningrad</entry>
</row>
<row>
<entry>Europe/Kiev</entry>
</row>
<row>
<entry>Europe/Lisbon Portugal</entry>
</row>
<row>
<entry>Europe/London GB GB-Eire</entry>
</row>
<row>
<entry>Europe/Luxembourg</entry>
</row>
<row>
<entry>Europe/Madrid</entry>
</row>
<row>
<entry>Europe/Malta</entry>
</row>
<row>
<entry>Europe/Minsk</entry>
</row>
<row>
<entry>Europe/Monaco</entry>
</row>
<row>
<entry>Europe/Moscow W-SU</entry>
</row>
<row>
<entry>Europe/Oslo Arctic/Longyearbyen Atlantic/Jan_Mayen</entry>
</row>
<row>
<entry>Europe/Paris</entry>
</row>
<row>
<entry>Europe/Prague Europe/Bratislava</entry>
</row>
<row>
<entry>Europe/Riga</entry>
</row>
<row>
<entry>Europe/Rome Europe/San_Marino Europe/Vatican</entry>
</row>
<row>
<entry>Europe/Samara</entry>
</row>
<row>
<entry>Europe/Simferopol</entry>
</row>
<row>
<entry>Europe/Sofia</entry>
</row>
<row>
<entry>Europe/Stockholm</entry>
</row>
<row>
<entry>Europe/Tallinn</entry>
</row>
<row>
<entry>Europe/Tirane</entry>
</row>
<row>
<entry>Europe/Uzhgorod</entry>
</row>
<row>
<entry>Europe/Vaduz</entry>
</row>
<row>
<entry>Europe/Vienna</entry>
</row>
<row>
<entry>Europe/Vilnius</entry>
</row>
<row>
<entry>Europe/Warsaw Poland</entry>
</row>
<row>
<entry>Europe/Zaporozhye</entry>
</row>
<row>
<entry>Europe/Zurich</entry>
</row>
<row>
<entry>Factory</entry>
</row>
<row>
<entry>GMT GMT+0 GMT-0 GMT0 Greenwich Etc/GMT Etc/GMT+0 Etc/GMT-0 Etc/GMT0 Etc/Greenwich</entry>
</row>
<row>
<entry>Indian/Antananarivo</entry>
</row>
<row>
<entry>Indian/Chagos</entry>
</row>
<row>
<entry>Indian/Christmas</entry>
</row>
<row>
<entry>Indian/Cocos</entry>
</row>
<row>
<entry>Indian/Comoro</entry>
</row>
<row>
<entry>Indian/Kerguelen</entry>
</row>
<row>
<entry>Indian/Mahe</entry>
</row>
<row>
<entry>Indian/Maldives</entry>
</row>
<row>
<entry>Indian/Mauritius</entry>
</row>
<row>
<entry>Indian/Mayotte</entry>
</row>
<row>
<entry>Indian/Reunion</entry>
</row>
<row>
<entry>MET</entry>
</row>
<row>
<entry>Pacific/Apia</entry>
</row>
<row>
<entry>Pacific/Auckland NZ</entry>
</row>
<row>
<entry>Pacific/Chatham NZ-CHAT</entry>
</row>
<row>
<entry>Pacific/Easter Chile/EasterIsland</entry>
</row>
<row>
<entry>Pacific/Efate</entry>
</row>
<row>
<entry>Pacific/Enderbury</entry>
</row>
<row>
<entry>Pacific/Fakaofo</entry>
</row>
<row>
<entry>Pacific/Fiji</entry>
</row>
<row>
<entry>Pacific/Funafuti</entry>
</row>
<row>
<entry>Pacific/Galapagos</entry>
</row>
<row>
<entry>Pacific/Gambier SystemV/YST9</entry>
</row>
<row>
<entry>Pacific/Guadalcanal</entry>
</row>
<row>
<entry>Pacific/Guam</entry>
</row>
<row>
<entry>Pacific/Honolulu HST SystemV/HST10 US/Hawaii</entry>
</row>
<row>
<entry>Pacific/Johnston</entry>
</row>
<row>
<entry>Pacific/Kiritimati</entry>
</row>
<row>
<entry>Pacific/Kosrae</entry>
</row>
<row>
<entry>Pacific/Kwajalein Kwajalein</entry>
</row>
<row>
<entry>Pacific/Majuro</entry>
</row>
<row>
<entry>Pacific/Marquesas</entry>
</row>
<row>
<entry>Pacific/Midway</entry>
</row>
<row>
<entry>Pacific/Nauru</entry>
</row>
<row>
<entry>Pacific/Niue</entry>
</row>
<row>
<entry>Pacific/Norfolk</entry>
</row>
<row>
<entry>Pacific/Noumea</entry>
</row>
<row>
<entry>Pacific/Pago_Pago Pacific/Samoa US/Samoa</entry>
</row>
<row>
<entry>Pacific/Palau</entry>
</row>
<row>
<entry>Pacific/Pitcairn SystemV/PST8</entry>
</row>
<row>
<entry>Pacific/Ponape</entry>
</row>
<row>
<entry>Pacific/Port_Moresby</entry>
</row>
<row>
<entry>Pacific/Rarotonga</entry>
</row>
<row>
<entry>Pacific/Saipan</entry>
</row>
<row>
<entry>Pacific/Tahiti</entry>
</row>
<row>
<entry>Pacific/Tarawa</entry>
</row>
<row>
<entry>Pacific/Tongatapu</entry>
</row>
<row>
<entry>Pacific/Truk</entry>
</row>
<row>
<entry>Pacific/Wake</entry>
</row>
<row>
<entry>Pacific/Wallis</entry>
</row>
<row>
<entry>Pacific/Yap</entry>
</row>
<row>
<entry>UCT Etc/UCT</entry>
</row>
<row>
<entry>UTC Universal Zulu Etc/UTC Etc/Universal Etc/Zulu</entry>
</row>
<row>
<entry>WET</entry>
</row>
</tbody>
</tgroup>
</table>
<para>
In addition to the names listed in the table,
<productname>PostgreSQL</productname> will accept
<xref linkend="guc-timezone"> values of the
form <replaceable>STD</><replaceable>offset</> or
<replaceable>STD</><replaceable>offset</><replaceable>DST</>, where
<replaceable>STD</> is a zone abbreviation, <replaceable>offset</> is a
numeric offset in hours west from UTC, and <replaceable>DST</> is an
optional daylight-savings zone abbreviation, assumed to stand for one hour
ahead of the given offset. For example, if <literal>EST5EDT</> were not
already a recognized zone name, it would be accepted and would be
functionally equivalent to USA East Coast time. When a daylight-savings
zone name is present, it is assumed to be used according to USA time zone
rules, so this feature is of limited use outside North America.
One should also be wary that this provision can lead to
silently accepting bogus input, since there is no check on the
reasonableness of the zone abbreviations. For example,
<literal>SET TIMEZONE TO FOOBAR0</> will work, leaving the system
effectively using a rather peculiar abbreviation for GMT.
</para>
</sect1>
<sect1 id="datetime-config-files">
......@@ -2249,7 +407,8 @@
negative being west. For example, -18000 would be five hours west
of Greenwich, or North American east coast standard time. <literal>D</>
indicates that the zone name represents local daylight-savings time
rather than standard time.
rather than standard time. Since all known time zone offsets are on
15 minute boundaries, the number of seconds has to be a multiple of 900.
</para>
<para>
......@@ -2284,6 +443,14 @@
the dot embedded in their names.
</para>
<note>
<para>
If an error occurs while reading the time zone data sets, no new value is
applied but the old set is kept. If the error occurs while starting the
database, startup fails.
</para>
</note>
<caution>
<para>
Time zone abbreviations defined in the configuration file override
......
doc/src/sgml/func.sgml
View file @ e893e875
<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.339 2006/09/20 23:43:21 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.340 2006/09/22 16:20:00 tgl Exp $ -->
<chapter id="functions">
<title>Functions and Operators</title>
......@@ -6095,9 +6095,8 @@ SELECT date_trunc('year', TIMESTAMP '2001-02-16 20:38:40');
In these expressions, the desired time zone <replaceable>zone</> can be
specified either as a text string (e.g., <literal>'PST'</literal>)
or as an interval (e.g., <literal>INTERVAL '-08:00'</literal>).
In the text case, the available zone names are those shown in either
<xref linkend="datetime-timezone-full-names-table"> or
<xref linkend="datetime-timezone-input-table">.
In the text case, a time zone name may be specified in any of the ways
described in <xref linkend="datatype-timezones">.
</para>
<para>
......
doc/src/sgml/ref/set.sgml
View file @ e893e875
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/set.sgml,v 1.89 2006/09/16 00:30:20 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/set.sgml,v 1.90 2006/09/22 16:20:00 tgl Exp $
PostgreSQL documentation
-->
......@@ -207,9 +207,8 @@ SELECT setseed(<replaceable>value</replaceable>);
</varlistentry>
</variablelist>
See <xref linkend="datatype-datetime"> for more information
about time zones. Also, <xref linkend="datetime-appendix">
has a list of the recognized names for time zones.
See <xref linkend="datatype-timezones"> for more information
about time zones.
</para>
</listitem>
</varlistentry>
......
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