The Magic Kingdom may be about to break it's attendance record next week as guests head to the resort for the Easter break. The Magic Kingdom is scheduled to be operating it's maximum opening hours.
Beginning on Sunday (and for the remainder of the week), the park will be opening at 7am for resort guests and closing at 1am, with 5 days of the Easter period having a resort guest closing time of 3am.
For regular guests, there are 7 days of 1am closings, and 11 days of 8am openings.
The upshot of all of this is that on some days, the park will be operating from 7am until 3am, and opening back the next morning at 7am. By the time you factor in late leavers and early arrivals, the hours begin to look more like 6am to 4am, with just a 2 hour downtime in between days.