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

6 files changed, 20 insertions, 2 deletions

diff --git a/src/timezone/tznames/Africa.txt b/src/timezone/tznames/Africa.txt
index 419dd04d86..a17ee48f49 100644
--- a/src/timezone/tznames/Africa.txt
+++ b/src/timezone/tznames/Africa.txt
@@ -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)
diff --git a/src/timezone/tznames/Asia.txt b/src/timezone/tznames/Asia.txt
index 3ffeb684a6..3493e0de9c 100644
--- a/src/timezone/tznames/Asia.txt
+++ b/src/timezone/tznames/Asia.txt
@@ -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)
diff --git a/src/timezone/tznames/Australia.txt b/src/timezone/tznames/Australia.txt
index a5ad6f44ff..5f41c6f843 100644
--- a/src/timezone/tznames/Australia.txt
+++ b/src/timezone/tznames/Australia.txt
@@ -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)
diff --git a/src/timezone/tznames/Default b/src/timezone/tznames/Default
index a84edb536d..522eeddce8 100644
--- a/src/timezone/tznames/Default
+++ b/src/timezone/tznames/Default
@@ -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
diff --git a/src/timezone/tznames/Europe.txt b/src/timezone/tznames/Europe.txt
index 1977d51920..10b499cad1 100644
--- a/src/timezone/tznames/Europe.txt
+++ b/src/timezone/tznames/Europe.txt
@@ -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)
diff --git a/src/timezone/tznames/README b/src/timezone/tznames/README
index 8ef110c851..eecbabeef1 100644
--- a/src/timezone/tznames/README
+++ b/src/timezone/tznames/README
@@ -23,5 +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.