Wed/Friday class change of plans.

Dear Wed/Friday class.  I'm sorry for the short notice in the change of plans for our party.  We have had to move our party time up to 10-11 a.m. due to an appointment I must keep in the afternoon.  For selfish reasons I wanted to make sure I could be at the party.  You should have received a note about it yesterday.  Sorry for any inconvenience.