updated all of the VTIMEZONE files to try to be more compatable with

2001-08-31  Damon Chaplin  <damon@ximian.com>

	* zoneinfo/*: updated all of the VTIMEZONE files to try to be more
	compatable with Outlook. i.e. We don't use seconds in UTC offsets,
	we don't use BYMONTHDAY if we can avoid it (there are still a few uses
	of this we need to fix), and we don't use years < 1600.

	* src/libical/icalvalue.c (icalvalue_utcoffset_as_ical_string): if
	seconds is 0 then don't output it. None of the builtin VTIMEZONE data
	uses the seconds value any more, since it messes up iTIP with Outlook.
	We may want to make it always round to the nearest minute, to avoid
	interop problems.

svn path=/trunk/; revision=12551

11 files changed, 20 insertions, 90 deletions

diff --git a/libical/zoneinfo/Indian/Antananarivo.ics b/libical/zoneinfo/Indian/Antananarivo.ics
index 13f62cacef..c14e44b16d 100644
--- a/libical/zoneinfo/Indian/Antananarivo.ics
+++ b/libical/zoneinfo/Indian/Antananarivo.ics
@@ -2,17 +2,10 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Antananarivo
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Antananarivo
 X-LIC-LOCATION:Indian/Antananarivo
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+031004
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZOFFSETFROM:+031004
+TZOFFSETFROM:+0310
 TZOFFSETTO:+0300
 TZNAME:EAT
 DTSTART:19110701T000000
diff --git a/libical/zoneinfo/Indian/Chagos.ics b/libical/zoneinfo/Indian/Chagos.ics
index fcadb8ba92..0858ce79fa 100644
--- a/libical/zoneinfo/Indian/Chagos.ics
+++ b/libical/zoneinfo/Indian/Chagos.ics
@@ -2,16 +2,9 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Chagos
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Chagos
 X-LIC-LOCATION:Indian/Chagos
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+0500
-TZNAME:IOT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
 TZOFFSETFROM:+0500
 TZOFFSETTO:+0600
 TZNAME:IOT
diff --git a/libical/zoneinfo/Indian/Christmas.ics b/libical/zoneinfo/Indian/Christmas.ics
index ef2d7d30a4..01a6cf314d 100644
--- a/libical/zoneinfo/Indian/Christmas.ics
+++ b/libical/zoneinfo/Indian/Christmas.ics
@@ -2,17 +2,10 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Christmas
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Christmas
 X-LIC-LOCATION:Indian/Christmas
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+070252
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZOFFSETFROM:+070252
+TZOFFSETFROM:+0703
 TZOFFSETTO:+0700
 TZNAME:CXT
 DTSTART:18950201T000000
diff --git a/libical/zoneinfo/Indian/Cocos.ics b/libical/zoneinfo/Indian/Cocos.ics
index 0a2ba4786b..47ce80510a 100644
--- a/libical/zoneinfo/Indian/Cocos.ics
+++ b/libical/zoneinfo/Indian/Cocos.ics
@@ -2,14 +2,14 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Cocos
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Cocos
 X-LIC-LOCATION:Indian/Cocos
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
+TZOFFSETFROM:+0630
 TZOFFSETTO:+0630
 TZNAME:CCT
-DTSTART:00010101T000000
-RDATE:00010101T000000
+DTSTART:16010101T000000
+RDATE:16010101T000000
 END:STANDARD
 END:VTIMEZONE
 END:VCALENDAR
diff --git a/libical/zoneinfo/Indian/Comoro.ics b/libical/zoneinfo/Indian/Comoro.ics
index 085a725468..66847d3a44 100644
--- a/libical/zoneinfo/Indian/Comoro.ics
+++ b/libical/zoneinfo/Indian/Comoro.ics
@@ -2,17 +2,10 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Comoro
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Comoro
 X-LIC-LOCATION:Indian/Comoro
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+025304
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZOFFSETFROM:+025304
+TZOFFSETFROM:+0253
 TZOFFSETTO:+0300
 TZNAME:EAT
 DTSTART:19110701T000000
diff --git a/libical/zoneinfo/Indian/Kerguelen.ics b/libical/zoneinfo/Indian/Kerguelen.ics
index 0443e82c56..e129df45cc 100644
--- a/libical/zoneinfo/Indian/Kerguelen.ics
+++ b/libical/zoneinfo/Indian/Kerguelen.ics
@@ -2,17 +2,10 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Kerguelen
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Kerguelen
 X-LIC-LOCATION:Indian/Kerguelen
 BEGIN:STANDARD
 TZOFFSETFROM:+0000
-TZOFFSETTO:+0000
-TZNAME:zzz
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZOFFSETFROM:+0000
 TZOFFSETTO:+0500
 TZNAME:TFT
 DTSTART:19500101T000000
diff --git a/libical/zoneinfo/Indian/Mahe.ics b/libical/zoneinfo/Indian/Mahe.ics
index c4f77ca904..572df29a14 100644
--- a/libical/zoneinfo/Indian/Mahe.ics
+++ b/libical/zoneinfo/Indian/Mahe.ics
@@ -2,17 +2,10 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Mahe
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Mahe
 X-LIC-LOCATION:Indian/Mahe
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+034148
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZOFFSETFROM:+034148
+TZOFFSETFROM:+0342
 TZOFFSETTO:+0400
 TZNAME:SCT
 DTSTART:19060601T000000
diff --git a/libical/zoneinfo/Indian/Maldives.ics b/libical/zoneinfo/Indian/Maldives.ics
index 241cda1462..51f6e072c8 100644
--- a/libical/zoneinfo/Indian/Maldives.ics
+++ b/libical/zoneinfo/Indian/Maldives.ics
@@ -2,16 +2,9 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Maldives
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Maldives
 X-LIC-LOCATION:Indian/Maldives
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+0454
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
 TZOFFSETFROM:+0454
 TZOFFSETTO:+0454
 TZNAME:MMT
diff --git a/libical/zoneinfo/Indian/Mauritius.ics b/libical/zoneinfo/Indian/Mauritius.ics
index 906e4448cf..18b6f924d0 100644
--- a/libical/zoneinfo/Indian/Mauritius.ics
+++ b/libical/zoneinfo/Indian/Mauritius.ics
@@ -2,16 +2,9 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Mauritius
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Mauritius
 X-LIC-LOCATION:Indian/Mauritius
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+0350
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
 TZOFFSETFROM:+0350
 TZOFFSETTO:+0400
 TZNAME:MUT
diff --git a/libical/zoneinfo/Indian/Mayotte.ics b/libical/zoneinfo/Indian/Mayotte.ics
index 5720e21734..2e9fc0f09d 100644
--- a/libical/zoneinfo/Indian/Mayotte.ics
+++ b/libical/zoneinfo/Indian/Mayotte.ics
@@ -2,17 +2,10 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Mayotte
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Mayotte
 X-LIC-LOCATION:Indian/Mayotte
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+030056
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZOFFSETFROM:+030056
+TZOFFSETFROM:+0301
 TZOFFSETTO:+0300
 TZNAME:EAT
 DTSTART:19110701T000000
diff --git a/libical/zoneinfo/Indian/Reunion.ics b/libical/zoneinfo/Indian/Reunion.ics
index 0f0b72ee98..ab8479b9ea 100644
--- a/libical/zoneinfo/Indian/Reunion.ics
+++ b/libical/zoneinfo/Indian/Reunion.ics
@@ -2,17 +2,10 @@ BEGIN:VCALENDAR
 PRODID:-//Ximian//NONSGML Evolution Olson-VTIMEZONE Converter//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/softwarestudio.org/Olson_20010626_2/Indian/Reunion
+TZID:/softwarestudio.org/Olson_20010831_3/Indian/Reunion
 X-LIC-LOCATION:Indian/Reunion
 BEGIN:STANDARD
-TZOFFSETFROM:+0000
-TZOFFSETTO:+034152
-TZNAME:LMT
-DTSTART:00010101T000000
-RDATE:00010101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZOFFSETFROM:+034152
+TZOFFSETFROM:+0342
 TZOFFSETTO:+0400
 TZNAME:RET
 DTSTART:19110601T000000