Change local timezone settings in MindTouch

The following was successfully tested on VM (Debian Linux) :

1. To modify the server timezone, enter : dpkg-reconfigure tzdata
   Then select your geographic area (Europe, Australia, ...)
   Select the time zone corresponding to your location (Paris, Sydney, ...)
   That's all! To verify the result, enter : date
2. Now, maybe all your users are not in the same timezone.
   Don't forget to verify (and adjust) each user timezone in the user preference menu ;)

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I've not tested the following old part (not erased if usable for other Linux....)

Set $wgDefaultTimezone in LocalSettings.php. Sample:

$wgDefaultTimezone  = date('P'); // use the system timezone
$wgDefaultTimezone  = '-07:00';  // specify a GMT offset