What is a good time on a Friday night to start rehearsal dinner? Fi thinks 6:30p due to rush hour, but I say 6:00p. The rehearsal dinner site will be 15mins away. I was asking because, I need to contact my ceremony location in a few months to book a time, because if we wait to long, we might have to rehearse someone else or have to share that slot with another couple.Rehearsal should only be 1 hr long, but you know somethings might come up.