Hi Chris
Here is the output for each of your procedure.
java TimeZoneTest output
user.timezone=
TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
TZ=Asia/Calcutta java TimeZoneTest output
user.timezone=
TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
java -Duser.timezone=Asia/Calcutta TimeZoneTest Output
user.timezone=Asia/Calcutta
TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
TZ=IST java TimeZoneTest Output
user.timezone=
TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="IST",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
The timezone in our linux server is uniformly configured in multiple
methods.
Output of /etc/sysconfig/clock
ZONE="Asia/Calcutta"
UTC=true
ARC=false
via TZ environment variable
Via /etc/localtime
Output of /etc/localtime
ÊÛ°ÌqÌ2¨ÒtRÐ[hMX [h
HMTBURTISTTZif2ÿÿÿÿV¶(ÿÿÿÿÊÛ°ÿÿÿÿÌqÿÿÿÿÌ2¨ÿÿÿÿÒtLMTHMTBURTIST
IST-5:30
I am saying JDK is running in correct timezone because all the sample
application ran in system timezone.
I am saying Tomcat is running in GMT timezone because logs, web apps are all
outputs in GMT Timezone.
One vital information i forgot to provide previously is, Tomcat timezone is
correct till "Tomcat server startup in Ns" message.
Regards
On Sat, Oct 10, 2009 at 6:52 PM, Christopher Schultz <
ch...@christopherschultz.net> wrote:
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> Raghu,
>
> On 10/10/2009 4:04 AM, raghu gs wrote:
> > I have installed Tomcat 6.0.20 using binary tarball in JDK 1.6.0.16
> running
> > CentOS 5,3 x64 Server.
>
> Use this class for reference:
>
> import java.util.TimeZone;
>
> public class TimeZoneTest
> {
> public static void main(String[] args)
> {
> System.out.println("user.timezone="
> + System.getProperty("user.timezone"));
> System.out.println("TimeZone.getDefault="
> + TimeZone.getDefault());
> }
> }
>
> On my system, this is the output with all defaults:
>
> $ java TimeZoneTest
> user.timezone=
>
> TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="America/New_York",offset=-18000000,dstSavings=3600000,useDaylight=true,transitions=235,lastRule=java.util.SimpleTimeZone[id=America/New_York,offset=-18000000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=3,startMonth=2,startDay=8,startDayOfWeek=1,startTime=7200000,startTimeMode=0,endMode=3,endMonth=10,endDay=1,endDayOfWeek=1,endTime=7200000,endTimeMode=0]]
>
> > We have tried the following methods to force tomcat to use the
> Asia/Calcutta
> > as timezone.
> >
> > 1) Created an environment variable called TZ and assigned it correct
> > timezone.
>
> $ TZ=Asia/Calcutta java TimeZoneTest
> user.timezone=
>
> TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
>
> > 2) Setting the correct timezone in catalina.sh via JAVA_OPTS="$JAVA_OPTS
> > -Duser.timezone=Asia/Calcutta"
>
> $ java -Duser.timezone=Asia/Calcutta TimeZoneTest
> user.timezone=Asia/Calcutta
>
> TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
>
> > 3) Our linux server uses Asia/Calcutta as Timezone,
> > evidence clock command's output is Sat 10 Oct 2009 01:18:44 PM IST
> > -0.502713 seconds
>
> What configuration effects this timezone setting? TZ environment
> variable? Something else?
>
> > 4) We have tried setting IST as timezone in catalina.sh too. but it
> didn't
> > work.
>
> $ TZ=IST java TimeZoneTest
> user.timezone=
>
> TimeZone.getDefault=sun.util.calendar.ZoneInfo[id="IST",offset=19800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]
>
> > 5) Java runtime is correctly running in Asia/Calcutta time, as a simple
> java
> > program revealed it.
>
> Good.
>
> > We have certainly not forced to use GMT as timezone in our tomcat
> > webapps code, as the same code is shared between multiple servers, In
> > those servers timezone information is being correctly inherited.
>
> What does your server report if you ask for
> System.getProperty("user.timezone") and TimeZone.getDefault() while
> Tomcat is running? What leads you to believe that either the JVM or
> "Tomcat" is not running with the right TimeZone?
>
> > Please help me to resolve this issue else i have to reformat the hard
> disk.
>
> That seems like a drastic technique.
>
> - -chris
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