# Timezone incorrect on Windows XP (Solution included)

**URL:** <https://forum.inductiveautomation.com/t/timezone-incorrect-on-windows-xp-solution-included/7815>\
**Category:** Ignition\
**Created:** [January 10, 2014, 10:05pm UTC](https://forum.inductiveautomation.com/t/timezone-incorrect-on-windows-xp-solution-included/7815 "2014-01-10T22:05:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![malleblas](https://avatars.discourse-cdn.com/v4/letter/m/ea666f/32.png) [@malleblas](https://forum.inductiveautomation.com/u/malleblas)\
**Post date:** [January 10, 2014, 10:05pm UTC](https://forum.inductiveautomation.com/t/timezone-incorrect-on-windows-xp-solution-included/7815/1 "2014-01-10T22:05:01Z")

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Hi,

Disclaimer: Why I am using Windows XP is not something I am proud to be reporting and hopefully that will be addressed in the very near future.

This is more of a Java/Windows problem however steps can be taken by Ignition to help alleviate any potential issues.

[techtavern.wordpress.com/2010/04 … indows-xp/](http://techtavern.wordpress.com/2010/04/15/java-and-incorrect-timezone-on-windows-xp/)

Essentially the means by which Java determines the timezone by querying the underlying operating system on Windows XP is potentially flawed. Other systems may be affected but I have no data.  
I had my system timezone set to +1000. Ignition and a quick run of the mill Java program both returned -0300. To fix this, I changed the system timezone to something other than the current setting and then back again without a restart in between. Afterward both Ignition and the Java test program read the timezone correctly.

That article however recommends that if you can’t trust the system, you should implement a properties file to be loaded at start up which can set the timezone explicitly. Similar functionality has been implemented in Ignition using the ignition.conf file I presume using the wrapper variable wrapper.java.additional.XX and the java parameter -Duser.timezone=correct\_timezone\_id.  
I personally don’t like the idea of using wrappers to set these types of parameters and would prefer a standard properties file or even XML file, but whatever works, works.

-Mikey