I take a lot of different MOOC and each class declare own deadline relative to some time zone.
Are there any Emacs mode that show date/time in buffer for several selected time zones in same time?
I expect that mode should understand usual time zone names like
EET. See https://en.wikipedia.org/wiki/List_of_time_zone_abbreviations
Also mode should display time in different formats (ISO and American AM/PM). I miss one deadline on half hour just because I didn't know what is
12:59 AM (I think it should be at noon but actually it on deep night).