this might help
ok if you set in the am such as 9 am the nesxt day at 9 am would complete day but you would count the day you set the egg as day 1 ex.
fri @ 9am = day 1
sat @ 9 am = day 2
sun @ 9 am = day 3
if set in the pm hours the following day would be day 1 ex
fri @ 3 pm = day 0...