Hiya Tiffany - welcome to planDisney!
Thanks so much for stopping by with a question. I'm excited about your trip in late November and early December - that's a great time to visit as you'll get to experience all of
the Disney holiday magic!
There isn't a formal rule for when to expect updates to the
posted Theme Park hours, though I've always found that they are posted at least 60 days in advance, and usually a bit earlier. As a planner myself, I know how important this information can be when trying to decide which Theme Parks to visit, but overall, there aren't usually too many surprises. One thing you can forecast is that
Magic Kingdom Park will close to regular Guests earlier on any evening with a
Mickey's Very Merry Christmas Party scheduled. Even once hours are posted, they do sometimes change, but in my experience, it's usually to extend park hours, giving Guests more time in the parks!
Regarding your luggage,
there are some lockers available at each Theme Park, but they are first-come-first-served, and larger lockers are in limited supply. Once you land at the airport, I recommend going directly to your
Disney Resort. If your room is not yet ready, you are able to store your bags safely with Bell Services and pick them up later in the day.
I hope you have a magical trip! If you happen to visit
EPCOT, be sure to check out my favorite new attraction -
Guardians of the Galaxy: Cosmic Rewind - it's a blast!
Ryan J.