Ballston Center Hours of Operation Created: March 6, 2019 / Department: Campus Safety Ballston Center is open Monday-Friday from 7am – 11pm; Saturdays from 8am – 6pm; closed on Sundays. Ballston Library Extension is open Monday-Thursday 8am-10pm; Friday 8am-6pm; Saturdays 10am-4pm; closed on Sundays. Tagged:buildinglibraryopen