"Hourly rate for 2 persons" Start time 8:30 to 10:30 (2 working hours), 10:30 to 11:00 collecting materials (0 working hours), 11:00 to 13:00 (2 working hours), 13:00 to 14:00 break (0 working hours), 14:00 to 15:00 (1 working hour).