Unclear behaviour at date border #42
Description
When a trip occurs near midnight, especially shortly after, it is unclear on which day this trip actually occurs. Currently, day-only lines are interpreted to run on the previous day while other lines always run on the calendar day. Additionally, night buses typically run on the next day still, so departures at 1 o'clock on Sundays officially are run on Saturdays at 25 o'clock. This is important when considering timetable changes.