This is according to Disney's website
www.disneyworld.com
Looks like MGM early morning no nights that day.April 2006
Morning Extra Magic Hours
Magic Kingdom® Park - April 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 27
Epcot® - April 4, 9, 16, 18, 25
Disney-MGM Studios - April 1, 8, 10, 14, 15, 17, 21, 22, 29
Disney's Animal Kingdom® Theme Park - April 3, 12, 15, 19, 22, 24
Disney's Blizzard Beach® Water Park - April 1 - 30
Disney's Typhoon Lagoon® Water Park - April 1 - 30
Evening Extra Magic Hours
Magic Kingdom® Park - April 2, 9, 14, 16, 21, 23, 30
Epcot® - April 7, 11, 13, 18, 20, 21, 28
Disney-MGM Studios - April 3, 12, 19, 24
Disney's Animal Kingdom® Theme Park - April 15 - 22