Universal Resort Hotel Guests
Throughout the year, Universal offers admission to The Wizarding World of Harry Potter areas at both Islands of Adventure (Hogsmeade) and Universal Studios Florida (Diagon Alley) one hour before regular park opening to guests staying at a Universal Resort Hotel. A few attractions outside those areas may also be open. Show your room key to gain entry. Certain types of "vacation packages" (most commonly those sold by Universal Parks & Resorts Vacationsand will involve both accommodations at a Universal partner hotel and theme park admission) are also allowed in early.
During certain times of year, Universal Orlando has historically allowed its Annual Passholders to enjoy some form of Early Park Admission. Check Universal's Annual Passholder website for current promotions.