When does cron.daily run?

[LordX]

I set up some new task in my cron.daily directory, but seems that it
does not work?
I guess the problem is that I shutdown the computer every night at about
22:30, this coz my cron.daily has no chance to run. Am I right? If I am
right, when does the cron.daily run? Can I change the schedule?
I know I can get the same effect by using cron.hourly with some trick,
but I just want to know how to do this use cron.daily.
Thanks.