Hi Pamela,
Here's what you need to do to check what days Fantasmic! will be taking place during the dates of your visit to the Walt Disney World Resort:-
1/ Visit the
Walt Disney World website 2/ Hover your mouse over "Parks & Tickets"
3/ To the right, you will see that the Park Hours are displayed for the current day. Click on where it says "More Hours" in blue
4/ Where the current date is displayed at the top of the page, click on the calendar symbol to the right hand side and select your arrival date
5/ Click on "Disney's Hollywood Studios"
6/ If Fantasmic! is scheduled to take place on this particular day, the time will be displayed for you to see.
You can then simply click the arrow after the calendar symbol to check for the remaining dates of your stay.
As an example, by using this method, I can tell you that Fantasmic! is currently scheduled to take place at 8:30 PM on Sunday, September 11, 2016.
Wishing you a magical trip filled with memories which will last a lifetime!
Emma