Example of what I need:
Cycle: 07:00 AM one day to 07:00 AM second day
Date is 08.05.2012. (07:00 AM) (dd.mm.yyyy)
For period between 08.05.2012 07:00AM to 09.05.2012 07:00AM
In cell A1: 08.05.2012
In cell A2: 09.05.2012
When opening a document:
In cell A1: Current Date
In cell A2: Next Day Date