Update timezone documentation to reflect current reality: instead of

giving tables of known timezone names, refer the user to the system views.
Joachim Wieland

4 files changed, 100 insertions, 1865 deletions

diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
index 5bca7c418f3..d9e4ea11b37 100644
--- a/doc/src/sgml/datatype.sgml
+++ b/doc/src/sgml/datatype.sgml
@@ -1,4 +1,4 @@
-<!-- $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>
 
@@ -2152,6 +2152,83 @@ January 8 04:05:06 1999 PST
     </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
      other standard ways described in <xref linkend="runtime-config">.
@@ -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>
diff --git a/doc/src/sgml/datetime.sgml b/doc/src/sgml/datetime.sgml
index f9d65b16f37..09e7d1797ac 100644
--- a/doc/src/sgml/datetime.sgml
+++ b/doc/src/sgml/datetime.sgml
@@ -1,4 +1,4 @@
-<!-- $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
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 3c956ad8eb3..b3fe74fe502 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1,4 +1,4 @@
-<!-- $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>
diff --git a/doc/src/sgml/ref/set.sgml b/doc/src/sgml/ref/set.sgml
index cc660fb6b31..76e8decf5c5 100644
--- a/doc/src/sgml/ref/set.sgml
+++ b/doc/src/sgml/ref/set.sgml
@@ -1,5 +1,5 @@
 <!--
-$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>