My wedding mass will begin at 3:00p.m. and will last an hour. The reception venue is 8 miles from the church. I was thinking of starting the cocktail hour at 5:00p.m. I figured the (Catholic) ceremony could go a bit over an hour and by the time people stop for a while to say hello they will probably leave the church at 4:30. This is why I was thinking of starting it at 5:00 p.m. I had a coordinator tell me that I should start it at 4:30. What do you guys think?P.S. Our reception will be the only one on Saturday and the venue told us that if people arrive early they can still come into the cocktail space.