9:00 a.m.-6: 00 p.m. Dongying District Library arrives at the library at 8: 30 a.m. every day, makes all preparations and officially opens at 9: 00 a.m.. Until 6: 00 p.m., during which lunch break is 12 to 2: 00 p.m., weekends are closed and working hours are 7 hours.