It depends on the application semantics, for example if I scheduled a Breakfast ...

s_kilk on June 9, 2017 | parent | context | favorite | on: Working with time in Postgres

It depends on the application semantics, for example if I scheduled a Breakfast for 08:00 in Las Vegas, but then moved the event to Chicago, I wouldn't want the time to be auto-converted to 06:00, (or whatever is appropriate given DST), because that's a silly time to have breakfast.