Hi!
I'll be happy to help you with your planning to see the nighttime fireworks at Walt Disney World!
At the Magic Kingdom,
Wishes is currently scheduled to be shown at 10pm each night of your vacation.
Illuminations: Reflections of Earth, at Epcot, is scheduled at 9pm each night.
And, last, but NEVER least,
Fantasmic at the Hollywood Studios is scheduled for March 27th, 29th & 31st at 8:30p.
Remember, its always a good idea to double check the Times Guide when you arrive at Walt Disney World, just in case there are any changes to the schedule!
Have fun!