When are Grad nights announced?

[Wendy_Darling_2001]

We are getting married on May 9th, 2005 at WDW and I am concerned that the 7th and 8th could be grad nights and thus no Spectro and Wishes for my guests!

This year the last 2 nights were Friday, April 30 and Saturday, May 1. So it is possible that I will be in luck.

Anyone know when they are officially announced? I would assume early enough for the schools to make their trip plans!

Thanks!!!