Since the last release I found a couple spots where the time was not localized to the user and have corrected these. I believe these were only in Posts View if I remember correctly. As for the entire thing, you have to make sure user time zones is enabled throughout the application and you have the base timezone set at the module level. Only then will the user settings override those. I am fairly certain this is working properly in most areas.

Fabian, are you running 3.20.01? I honestly don't know what else to tell you except ask you to tell me where you are seeing the problem. You should be able to see here it is working fine.