The system sometimes insists on giving people staggered "seating times" for the Dessert Party as though it were a continuous service restaurant rather than being a once-a-night single event. No matter what ADR time the system gives you, the party opens for all attendees approximately one hour before Wishes and you'll want to get there at least 15 minutes before that one-hour slot. Getting there a whole lot earlier does not get you a better seat because the tables are pre-assigned. But if Wishes starts at 8 and you get a 7:30 ADR, please do not wait until 7:30 to go. All you will have done is paid for half an hour you didn't use. Conversely, if the system gives you a 6 pm ADR, they still won't let you in that early! For an 8 pm Wishes, arrive between 6:30 and 6:45.