>>> "Andy Spitzer" <[EMAIL PROTECTED]> 09/03/08 03:44PM >>>
Woof!
Executive summary:
/etc/sysconfig/clock is set INCORRECTLY by the Fedora GUI
system-config-date program.
It sets the file thusly:
ZONE="America/New York"
When it should be:
ZONE="America/New_York"
(There is an underscore in the correct version).
Long and boring tech details, all derived from strace and experiment:
It TZ is set, it uses that.
If not, it tries to get ZONE from /etc/sysconfig/clock
If the ZONE is set incorrectly, then Java falls back to trying to parse
/etc/localtime, but it seems to not understand the daylight savings flag
in that case.
So when I used system-config-date to set my NTP servers to "Nortel
Standard" as they block the others (ain't corporate life grand?), it
munged /etc/sysconfig/clock AND it overwrote /etc/localtime (which was a
hard link at the time, which ended up munging the original
/usr/local/share/posixrules file it was linked to.
Moral:
Always use the command line!
--Woof!
>>> "Melcon Moraes" <[EMAIL PROTECTED]> 10/13/08 18:22 PM >>>
Did you guys find anything new on that?
Is this somehow related to the issue?
http://java.sun.com/javase/timezones/tzdata_versions.html
[]'s
MM
On Wed, Sep 3, 2008 at 2:49 PM, Andy Spitzer <[EMAIL PROTECTED]> wrote:
> Woof!
>
> On Wed, 03 Sep 2008 10:26:55 -0400, Damian Krzeminski
<[EMAIL PROTECTED]>
> wrote:
>> I think it can happen when JVM has a different opinion on if you are
in
>> DST
>> or not ;-)
>> It's usually not just sipXconfig but any Java application that is
>> affected.
>> I wrote a small tester once (attached).
>> Try this:
>>
>> java Time
>>
>> And compare the output to /etc/sysconfig/clock and date output.
>
> Very odd. With /etc/localtime pointing to
> /usr/share/zoneinfo/America/Los_Angeles:
> $ date -u; date; java Time
> Wed Sep 3 17:44:10 UTC 2008
> Wed Sep 3 10:44:10 PDT 2008
> September 3, 2008 9:44:10 AM GMT-08:00
> Time zone:GMT-08:00 GMT-08:00
> In DST:false
> Uses DST:false
> DST offset:0
>
> With /etc/localtime pointing to /usr/share/zoneinfo/America/New_York:
> date -u; date; java Time
> Wed Sep 3 17:45:06 UTC 2008
> Wed Sep 3 13:45:06 EDT 2008
> September 3, 2008 12:45:06 PM GMT-05:00
> Time zone:GMT-05:00 GMT-05:00
> In DST:false
> Uses DST:false
> DST offset:0
>
> So java "knows" about the GMT offset, but not daylight savings.
>
> With TZ set:
>
> TZ="America/New_York" java Time
> September 3, 2008 1:46:29 PM EDT
> Time zone:Eastern Standard Time America/New_York
> In DST:true
> Uses DST:true
> DST offset:3600000
>
> It knows about both.
>
> --Woof!
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