This also happens for any events that you set up in the calendar app without syncing (So the "personal calendar)
As mentioned, make an event and set a reminder before the event, the reminder will be trigged at the time of the event and not before.
This also happens for any events that you set up in the calendar app without syncing (So the "personal calendar)
As mentioned, make an event and set a reminder before the event, the reminder will be trigged at the time of the event and not before.