I'm about to add Event Duration to the Calendar class.
There is two ways I believe I can approach this
- Add MySQL column for EventEndTime. Example: StartTime 2009-11-20 08:00:00, EndTime 2009-11-20 09:30:00
- Add MySQL column for EventDuration. Example: EventTime 2009-11-20 08:00:00, EventDuration 01:30:00
Which one if your opinion is more effective?