Larry Dighera writes:

Perhaps, but it was 0900 local.

The world of airlines has little connection to local time. Pilots can be
tired at any time of day.

http://www.avweb.com/eletter/archive...ll.html#197200
even stranger than usual -- it was 9 o'clock in the
morning, and the flight was a 45-minute hop from Honolulu to Hilo.

They could still be too tired to stay awake, depending on what happened prior
to that flight.