I need the option to convert message date to local time on forwarding, instead of UTC + - from the original header. This is the expected behavior in every other client I have used. Even if the original sender is in the same city as me, chances are their originating server could be somewhere else and their originating time preference may not be set correctly. So it's more useful and logical to end user to show that in my local time zone. Please, at least make it a user preference option. I am not the only one: https://support.mozilla.org/en-US/questions/1388819 https://support.mozilla.org/en-US/questions/1421056