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Sets an event’s start date.

event.setStart( date, [ options ] )

date is something that must parse into a Date Object.

options is an optional plain object that can have the following property:

  • maintainDuration — if set to true, the event’s end will also be adjusted in order to keep the same duration

If you’d like to set both the start and end at the same time, use setDates instead.

If there are other events that share the same groupId, those events’ dates will be similarly modified.