Feature request: user-specific time/date format
Some software such as phpBB allow the user to specify custom date format in
man strftime format or similar.
I think this could be particularly helpful for users who tend to participate to events on multiple timezones e.g. either due to travel or expecting issues with daylight saving time. The timezone UTC offset could be shown with
%z or timezone abbreviation with
%Z while that may be confusing.