At one time the ride topped out over 7 hour wait time. That should be a record for any ride at any theme park in the world. Universal is waiting to see if such records are kept.
I=4 was already backed up at 6am and guest were waiting in line thousands deep for the opening of Universal Studios. The guest were allowed in at 8am and lines were quickly formed.
The posted wait time for Harry Potter and the Escape From Gringotts thrill ride, the centerpiece of the new Wizarding World of Harry Potter — Diagon Alley, topped out at 450 minutes before the ride was shut down. It was restarted about 45 minutes later.