Create a file time_offset.php which contain a TZ variable for the time zone where you are, put it in...
admin/includes/extra_configures/time_offset.php
For example mine contains..
PHP Code:
<?php
//You can modify the TZ (Time Zone) by using one of the following offsets
//TZ=America/Los_Angeles
//TZ=America/Denver
//TZ=America/Chicago
//TZ=America/New_York
putenv ('TZ=Australia/Melbourne');
?>
you need to change
putenv ('TZ=Australia/Melbourne');
to what ever your time zone is, you may have to google to find the valid text for your time zone
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