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Jeff,
On 3/23/16 9:16 AM, Jeff Crump wrote:
> If you're connecting to a database you can set the timezone offset
> for that db session.
That is (a) not necessary and (b) probably won't help. OP is going to
have problems reading dates as input as well, so a db-only fix only
helps a little.
- -chris
> On Mar 23, 2016 8:12 AM, "Christopher Schultz"
> <ch...@christopherschultz.net> wrote:
>
> Utkarsh,
>
> On 3/23/16 3:27 AM, Utkarsh Dave wrote:
>>>> Thanks Chris and John for the response.
>>>>
>>>> Chris - We do not use date formats to display
>
> This is the root of your problem.
>
>>>> , but we are facing issue like
>>>> System.out.println(java.util.TimeZone.getDefault().getID());
>>>> //This prints UTC, which is incorrect
>
> The default time zone of your application should not matter,
> though changing it midstream could seriously confuse things. If you
> have a rogue library that is changing the default timezone to UTC,
> then maybe you should run in UTC all the time to avoid
> unpredictability.
>
>>>> System.out.println(System.getProperty("user.timezone"));
>>>> //which prints IST, that is correct
>
> This setting isn't really relevant after the JVM initializes.
> user.timezone just seeds TimeZone.getDefault.
>
>>>> System.out.println(new java.util.Date().toString()); //prints
>>>> Mon Feb 08 10:42:18 UTC 2016.
>
> You need to use a DateFormat with a TimeZone, then you'll get the
> values you expect.
>
>>>> After restarting tomcat things get reset. On one of the blogs
>>>> I found setting the default timezone at start time is: java
>>>> -Duser.timezone=<server time>. I will try this.
>
> It won't help.
>
>>>> But didn't quiet understood that why suddenly when everything
>>>> works fine, one odd day the UTC time zone starts displaying.
>
> Try running under a SecurityManager; you'll probably find a
> component that tries to set that system property. Go complain to
> whoever wrote that code.
>
> -chris
>>
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