I can't tell you the hours, but I will say that there is no good time. We were at the HRH 6/23-6/25. We had clothes that got wet on the rides that we wanted to dry. There is not time of the day or night until about 9:30 that we didn't stop down to see if a dryer was open. With 2 washing machines and 2 dryers for the entire resort, doing laundry is a joke! It's almost as bad here at the Dolphine, but at least they have 10 of each machine!