i found out that our server time is set to UTC-0 by the hoster, hence the 2 hour delay. In the listings of the forums and the topics the calculation is still correct, only in one topic itself, the calculation is incorrect. Where can I adjust the calculation? Could it change there by +2 hours? In the database the timestamp is also set correctly, therefore it is only due to the calculation in the code and the display within a certain topic.