Update the tznames reference files, and add IDT (Israel Daylight Time)

to the Default timezone abbreviation set.

Back-port the the current file set to all branches that contain tznames.
This includes adding SGT to the Default set in pre-8.4 releases.

Joachim Wieland

src/timezone/tznames/Africa.txt

@@ -4,7 +4,7 @@
 #   a template for timezones you could need.  See the `Date/Time Support'
 #   appendix in the PostgreSQL documentation for more information.
 #
-# $PostgreSQL: pgsql/src/timezone/tznames/Africa.txt,v 1.2 2006/07/25 13:49:21 tgl Exp $
+# $PostgreSQL: pgsql/src/timezone/tznames/Africa.txt,v 1.2.4.1 2009/09/06 15:25:39 tgl Exp $
 #
 
 CAT      7200    # Central Africa Time
@@ -161,6 +161,12 @@ WAT      3600    # West Africa Time
                  #     (Africa/Niamey)
                  #     (Africa/Porto-Novo)
                  #     (Africa/Windhoek)
+WEST     3600 D  # Western Europe Summer Time
+                 #     (Africa/Casablanca)
+                 #     (Atlantic/Canary)
+                 #     (Atlantic/Faeroe)
+                 #     (Atlantic/Madeira)
+                 #     (Europe/Lisbon)
 WET         0    # Western Europe Time
                  #     (Africa/Casablanca)
                  #     (Africa/El_Aaiun)

src/timezone/tznames/America.txt

@@ -4,7 +4,7 @@
 #   a template for timezones you could need.  See the `Date/Time Support'
 #   appendix in the PostgreSQL documentation for more information.
 #
-# $PostgreSQL: pgsql/src/timezone/tznames/America.txt,v 1.3.2.1 2008/03/02 00:10:28 tgl Exp $
+# $PostgreSQL: pgsql/src/timezone/tznames/America.txt,v 1.3.2.2 2009/09/06 15:25:39 tgl Exp $
 #
 
 # Acre time is sometimes called Acre Standard Time (AST) which leads to a

src/timezone/tznames/Asia.txt

@@ -4,7 +4,7 @@
 #   a template for timezones you could need.  See the `Date/Time Support'
 #   appendix in the PostgreSQL documentation for more information.
 #
-# $PostgreSQL: pgsql/src/timezone/tznames/Asia.txt,v 1.3 2006/12/15 16:54:43 tgl Exp $
+# $PostgreSQL: pgsql/src/timezone/tznames/Asia.txt,v 1.3.2.1 2009/09/06 15:25:39 tgl Exp $
 #
 
 # CONFLICT! ADT is not unique
@@ -138,10 +138,15 @@ ICT     25200    # Indochina Time
                  #     (Asia/Phnom_Penh)
                  #     (Asia/Saigon)
                  #     (Asia/Vientiane)
+IDT     10800 D  # Israel Daylight Time
+IRDT    16200 D  # Iran Daylight Time
+                 #     (Asia/Tehran)
 IRKST   32400 D  # Irkutsk Summer Time
                  #     (Asia/Irkutsk)
 IRKT    28800    # Irkutsk Time
                  #     (Asia/Irkutsk)
+IRST    12600    # Iran Standard Time
+                 #     (Asia/Tehran)
 IRT     12600    # Iran Time (not in zic)
 # CONFLICT! IST is not unique
 # Other timezones:
@@ -154,7 +159,6 @@ IST     19800    # Indian Standard Time
 # - IST: Irish Summer Time (Europe)
 # - IST: Indian Standard Time (Asia)
 IST      7200    # Israel Standard Time
-                 #     (this time zone is not contained in the ZIC database)
 JAYT    32400    # Jayapura Time (Indonesia) (not in zic)
 JST     32400    # Japan Standard Time
                  #     (Asia/Tokyo)

src/timezone/tznames/Australia.txt

@@ -4,7 +4,7 @@
 #   a template for timezones you could need.  See the `Date/Time Support'
 #   appendix in the PostgreSQL documentation for more information.
 #
-# $PostgreSQL: pgsql/src/timezone/tznames/Australia.txt,v 1.2 2006/07/25 13:49:21 tgl Exp $
+# $PostgreSQL: pgsql/src/timezone/tznames/Australia.txt,v 1.2.4.1 2009/09/06 15:25:39 tgl Exp $
 #
 
 ACSST   37800 D  # Central Australia (not in zic)
@@ -25,6 +25,8 @@ CAST    34200    # Central Australia Standard Time (not in zic)
 CST     34200    # Central Standard Time (Australia)
                  #     (Australia/Adelaide)
                  #     (Australia/Broken_Hill)
+CWST    31500    # Central Western Standard Time (Australia)
+                 #     (Australia/Eucla)
 # CONFLICT! EAST is not unique
 # Other timezones:
 #  - EAST: Easter Island Time (Chile) (Pacific)

src/timezone/tznames/Default

@@ -4,7 +4,7 @@
 # timezone_abbreviations to 'Default'.  See the `Date/Time Support'
 # appendix in the PostgreSQL documentation for more information.
 #
-# $PostgreSQL: pgsql/src/timezone/tznames/Default,v 1.4.2.2 2009/03/05 14:28:04 heikki Exp $
+# $PostgreSQL: pgsql/src/timezone/tznames/Default,v 1.4.2.3 2009/09/06 15:25:39 tgl Exp $
 
 
 #################### AFRICA ####################
@@ -283,6 +283,7 @@ ICT     25200    # Indochina Time
                  #     (Asia/Phnom_Penh)
                  #     (Asia/Saigon)
                  #     (Asia/Vientiane)
+IDT     10800 D  # Israel Daylight Time
 IRKST   32400 D  # Irkutsk Summer Time
                  #     (Asia/Irkutsk)
 IRKT    28800    # Irkutsk Time
@@ -334,6 +335,8 @@ PETT    43200    # Petropavlovsk-Kamchatski Time
                  #     (Asia/Kamchatka)
 PHT     28800    # Phillipine Time (not in zic)
 PKT     18000    # Pakistan Time (not in zic)
+SGT     28800    # Singapore Time
+                 #     (Asia/Singapore)
 TJT     18000    # Tajikistan Time
                  #     (Asia/Dushanbe)
 TMT     18000    # Turkmenistan Time

src/timezone/tznames/Europe.txt

@@ -4,7 +4,7 @@
 #   a template for timezones you could need.  See the `Date/Time Support'
 #   appendix in the PostgreSQL documentation for more information.
 #
-# $PostgreSQL: pgsql/src/timezone/tznames/Europe.txt,v 1.2 2006/07/25 13:49:21 tgl Exp $
+# $PostgreSQL: pgsql/src/timezone/tznames/Europe.txt,v 1.2.4.1 2009/09/06 15:25:39 tgl Exp $
 #
 
 BST      3600 D  # British Summer Time
@@ -191,6 +191,7 @@ SAMST   18000 D  # Samara Summer Time
 SAMT    14400    # Samara Time
                  #     (Europe/Samara)
 WEST     3600 D  # Western Europe Summer Time
+                 #     (Africa/Casablanca)
                  #     (Atlantic/Canary)
                  #     (Atlantic/Faeroe)
                  #     (Atlantic/Madeira)

src/timezone/tznames/Indian.txt

@@ -4,7 +4,7 @@
 #   a template for timezones you could need.  See the `Date/Time Support'
 #   appendix in the PostgreSQL documentation for more information.
 #
-# $PostgreSQL: pgsql/src/timezone/tznames/Indian.txt,v 1.2.4.1 2009/03/05 14:28:04 heikki Exp $
+# $PostgreSQL: pgsql/src/timezone/tznames/Indian.txt,v 1.2.4.2 2009/09/06 15:25:39 tgl Exp $
 #
 
 CCT     23400    # Cocos Islands Time (Indian Ocean)

src/timezone/tznames/README

+$PostgreSQL: pgsql/src/timezone/tznames/README,v 1.2.4.1 2009/09/06 15:25:39 tgl Exp $
+
+tznames
+=======
+
 This directory contains files with timezone sets for PostgreSQL.  The problem
 is that time zone abbreviations are not unique throughout the world and you
 might find out that a time zone abbreviation in the `Default' set collides
@@ -18,5 +23,9 @@ Your set of time zone names can then be included in future releases.
 For the time being you can always add your own set.
 
 The files named Africa.txt, etc, are not intended to be used directly as
-timezone abbreviation files.  They contain reference definitions of timezone
+time zone abbreviation files. They contain reference definitions of time zone
 names that can be copied into a custom abbreviation file as needed.
+
+Note that these files (*.txt) are already a subset of the zic timezone
+database files: we tried to list only those time zones that (according to
+the zic timezone database) appear to be still in use.