With the beginning of the new school year, Gilley Pool hours will change. The times will better accommodate attendance of school-aged children. Beginning Aug. 15, the pool will be open Monday through Thursday from 9-11 a.m. and 3-8 p.m., Saturday 10 a.m. to 5 p.m., and Sunday 1-5 p.m.“We will run our regular hours through Aug. 14,” said Parks and Recreation interim director Greg Wanamaker.