It depends on what time you need to be ready (are you doing a first look and/or portraits that take place before the ceremony?) and how many people are getting hair and makeup done. Once you know those two things, your cosmetologist will tell you how much time s/he needs to get you ready. Mine came at 5 am so I could be ready by 7 am, and that was just for me—no bridesmaids or moms were having their makeup and hair done.