calender scheduling

Hi ALL..

I have a request from client to run the backup a 6 in evening to 2 in night(spans midnight) on 10 and 11 march 2013.

I have set the calender schedule.NBU 7.1

My calender schedule spans midnight.i have checked 10 th march in calender dates tab and excluded 11 th march.

My backup will open a new window in this case on 11th?

It is urgent.I have to reply to the customer.