Hi there, Mary!
You'll definitely want to check out the official Parks calendars on the Walt Disney World Web site. There are two ways to do this:
1 The "
10 days out calendar" allows you to view hours in all of the Parks for ten days, starting with any date you select. This calendar indicates which Parks have morning and evening Extra Magic Hours (EMH).
2. Each Park has its own month-view calendar, on which you can see event times as well as operating hours, closure, event times, and EMH. Those calendars are found, again, on the official Disney site; you'll need to go to each Park-specific page and use the navigation bar on the left for the 'Calendar' section.
Once you have your calendars pulled up, use another browser window to visit the
Dining and Reservations center -- or call (407) WDW-DINE. Then you can compare and contrast reservation availability with the hours you wish to be in the Parks.
Have a wonderful trip!
See you later, celebrator,
-Deborah B.