I'll just leave my common advice here. - Store all dates and times as UTC when dealing machine interfaces - Communicate to others as clearly as concisely as p

I'll just leave my common advice here. - Store all dates and times as UTC when dealing machine interfaces - Communicate to others as clearly as concisely as possible. So, I store everything in Postgres as ISO-8601 UTC times, while I tell my friends I'll be there at 8 (even though my watch will say 20:00).