morbificagent andreaslang grommunio-sync.conf.php: // Defines the default time zone, change e.g. to "Europe/London" if necessary define('TIMEZONE', ''); suse: timedatectl | grep "Time zone" Time zone: Europe/Berlin (CEST, +0200) php.ini: not defined Im not sure where he gets 'Europe/Vienna' from but its the same timezone like all my other devices have (CEST, +0200)