Chester Fritz Library lists summer inter-session hours The Chester Fritz Library will observe the following hours of operation for summer inter-session (Aug. 8 - Aug. 23): Monday through Friday - 7:45 a.m. to 4:30 p.m. Saturday and Sunday - closed Saturday and Sunday (Aug. 22 and Aug. 23) - 1 to 5 p.m. Monday, Aug. 24 (beginning of fall semester) - 7:45 a.m. to midnight -- Karen Cloud, Administrative Assistant, Chester Fritz Library, karencloud@mail.und.edu, 777-2618