It depends on if you get seated on time, your server, etc. We had 5:30 ADR's in September; we did not get seated until 6:10 or so; our server was absolutely terrible--we waited over 10 minutes before she even showed up at our table and she took our drink order and it took her 10 minutes to bring the drinks. She then went to take care of other tables and it was another 10 minutes before she came back to even take our order. I won't even go into how long it took to get hte food, we were never asked if we wanted dessert (and we were on the dining plan--although we wouldn't have eaten it anyway as DH got sick on the food in the skillet) and how long it took to get our bill and then have our card returned to us. I definitely think you could be pushing it time wise.