Hello, dear support team.

A client of mine complained about rescheduling his appointment through the new client profile and choosing 6:00 p.m. However, I was notified that it got changed to 4 pm. He logged in to his profile today and said that it first showed as 2 pm but then changed to 4 pm (which was never his desired appointment to begin with) He said that he was in Europe/Berlin time zone as he rescheduled (the time zone I work in) and that he didn’t use any special browser or VPN that would alter the time zone. I have the “show the time slots in the clients time zone” setting active. I tried to deactivate this to prevent further confusions, so that all appointments can only be shown in Berlin Time Zone (the one active in my WPress settings). However, as I did it, I noticed that all appointments are shown either one hour or two hours later as supposed to. This gets “fixed” if I activate the clients time zone checkbox again. I know that the WPresss’ time and date are correct, because I displayed them using a shortcode. I also double checked the settings for my services and they are all correct. What is happening with the time zones and how can I fix this? This is a serious problem because I now lost this appointment because of this.

Thank you for your answer.

I deactivated completely all functions for dynamic time zones to avoid confusions and this helped. 

The timezone in WP was always right, so there must have been another explanation for this happening. Im now informing all clients that all sessions will be booked in Berlin time to avoid confussions (although dynamic time zones would be a cool feature, if it worked accurately) I am now facing another problem with recurring sessions, but I will open another ticket with pictures for this