Agreed. My schedule is exactly the same as yours (ceremony at 5:30, cocktail hour at 6, reception at 7) and I didn't indicate AM or PM on my invitation. I didn't feel it was necessary, and I had a professional stationer helping me with the wording of my invitations, so I trust her judgment.
Clear liquids, including water, clear tea, black coffee, carbonated beverages and fruit juice without pulp, up to two hours before surgery. Very light meals, like toast and tea with milk, up to six hours before surgery. Heavy meals, including fried or fatty foods and meat, up to eight hours before surgery.
Certain foods, such as potatoes and eggplants, contain chemicals that even in small amounts can slow down the metabolism of common anesthetic drugs. Foods eaten days before surgery could significantly delay recovery. Much of the wide variation in sensitivity to certain anesthetics may thus be due to diet.