Best way to store time above 24:00:00 in postgresql?

Question

I\'m storing GTFS feeds into a SQL database and some times are expected to be stored above the 24:00:00 cap on time values. For example, some trains run at 12:30AM, but are

Answer 1

I'd store two fields:

departure_time timestamp with time zone,
service_date date

Departure time would be calculated like this:

 => select '2015-07-08'::timestamptz+'24:30'::interval;
 2015-07-09 00:30:00+02

This way:

• you have a normal moment of time field for sorting events;
• you'd not loose service date information;
• you'd be able to calculate back the original GTFS data if needed.