Rehearsals are scheduled for one hour, usually the day before the ceremony, starting at 6:00 or 6:30 (unless there are multiple ceremonies the next day). All participants in the ceremony should attend the rehearsal, especially ushers.

Two suggestions:

That children taking part in the ceremony as ring bearers or flower girls be at least 5 years old.
If candles are being lit as part of the ceremony, they should be lit at least 15-20 minutes before the service.
You will receive a “rehearsal fill-in form” about a month before your ceremony. Please fill it out and return it no later than two weeks before the ceremony so the rehearsal program may be composed.