Hi Jillian!
I'm excited to help you get ready for your Walt Disney World Resort vacation, which will be even more special as you're
visiting the "Most Magical Place on Earth" during the holiday season!
As you know, December 21 is an evening when Magic Kingdom isn't hosting
Mickey's Very Merry Christmas Party. This means that you'll be able to enjoy a full day at Magic Kingdom with your standard theme park ticket. While the Times Guide hasn't yet been updated to include December park hours or event times, I expect that you'll be able to enjoy the theme park all day during your visit and I expect that
Disney Enchantment will be showing during the evening.
Keep in mind that hours are always subject to change and fireworks are always subject to cancellation due to weather. I recommend that you keep an eye on
Walt Disney World Resort Park Hours as your trip approaches for updates to Magic Kingdom operating hours and the Disney Enchantment schedule. Plus, you'll be able to get info about showtimes for other entertainment you can enjoy during your trip!
Let us know if you have additional questions as you continue planning. T-T-F-N, ta ta for now!
~Crystal