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.
To improve recovery, foods eaten 72 hours post-op should be bland, soft and easy to digest, as digestion is compromised during periods of stress. Soups and smoothies containing protein are ideal. For the first week after surgery the one week pre-surgery protocol should be followed. Foods high in monounsaturated fats can be added to diets, such as extra-virgin olive oil, avocado, tart/sour cherries and blueberries, which have a profound anti-inflammatory effect.