From my list from CM07 it states:
"Departures are at 9:00am except as noted. We suggest arriving at the trail line-up 30 minutes before departure."
Looks like all of the trails had 9:00am departures last year with the exception of: Elephant Hill (7:00am) and Golden Spike (8:00am).
Pritchett Canyon doesn't show a special departure time for CM07 so I assume it will be the same for CM08 and depart at 9:00am