Guests can plan ahead of time which restaurants they want to dine at in Disney World and then can book a table online or on the phone.
Most restaurants at Walt Disney World don't require advance reservations, but it's best to make one when possible.
The majority of dining reservations are found at table service restaurants and buffets. These are restaurants where you have a waiter for your table.
Right now, Advance Dining Reservations can be made up to 60 days in advance of your desired reservation date.
You can have an almost unlimited number of dining reservations for your trip, just as long as they don’t overlap each other at the same time.