The Magic Kingdom will close one-hour before the beginning of Mickey’s Very Merry Christmas Party on event nights in 2017, a change from years past.
In previous years, the park would close at 7pm just as the party was beginning. To better accommodate guests arriving for the parties and to help clear out day-guests earlier, the Magic Kingdom will close to non-party guests at 6pm on each event night this year. Basically, attraction queues and the park entrance will no longer admit non-party guests starting at 6PM.
It is unclear at this time exactly how this will affect the usual park procedures in preparing for the party.