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Type: Enhancement
Resolution: Unresolved
Priority: P4
Fix Version/s: tbd
Affects Version/s: 1.3.0, 1.4.1, 1.4.2, 5.0, 5.0u8, 6
Component/s: core-libs
Labels:
- i18n-ldd
- timezone
- webbug

Subcomponent:
java.time
Understanding:
Cause Known
CPU:

generic, x86, sparc
OS:

generic, linux, solaris_9, windows_2000, windows_xp

In many time zones, they switched time zones and therefore changed the time zone names. For example, the following is the history of Asia/Singapore.

# Singapore
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Singapore 6:55:24 - LMT 1880
6:55:24 - SMT 1905 Jun # Singapore Mean Time
7:00 - MALT 1933 # Malaya Time
7:20 - MALT 1942 Feb 15
9:00 - JST 1945 Sep 2
7:20 - MALT 1950
7:30 - MALT 1965 Aug 9 # independence
7:30 - SGT 1982 May # Singapore Time
8:00 - SGT

The TimeZone class can't deal with these name changes.

Currently, timezone abbreviations are stored in java.text.resources.DateFormatZoneData<locale>. Therefore, timezone abbreviations unknown to a locale are not shown in the locale. Timezone abbreviations should not be dependent on a locale. (Timezone names should still be localizable.)

duplicates

JDK-4832236 REGRESSION: (new Date(0L)).toString() == "Thu Jan 01 01:00:00 GMT 1970"

Closed

JDK-4844459 setTimeInMillis adding an extra hour as default

Closed

JDK-6417469 (tz) Iran stopped using daylight saving

Closed

JDK-6609362 (tz) Epoch GMT offset causes unexpected behaviour in SimpleDateFormat parsing

Closed

JDK-6609419 Time zone wrong when "Automatically adjust clock DST" is selected in win XP

Closed

JDK-6644488 [Fmt-Da] SimpleDateFormat with zzz pattern loose 1 hour when parsing from 1900 to 1940

Closed

JDK-6644494 [Fmt-Da] SimpleDateFormat do not use timezone historic offset change during parsing

Closed

JDK-6433699 SimpleDateFormat formats 'z' as GMT, 'Z' as +0100

Closed

JDK-8058523 Wrong timezone shortcode output for Europe/London for 1971-10-31 01:59:59 UTC

Closed

relates to

JDK-6801246 javazic tool outputs a warning message with tzdata2009a

Closed

JDK-4247995 Wrong timezone abbreviations (CTT, AST, etc.) used as time zone IDs

Closed

(4 duplicates, 2 relates to)

Assignee:: Naoto Sato

Reporter:: Masayoshi Okutsu

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Created:: 1999-07-18 23:38

Updated:: 2018-09-11 08:10

Imported:: 16/Sep/12 10:01 AM

Indexed:: 18/Jul/12 5:18 AM

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