Chester Fritz Library lists hours for summer inter-session The Chester Fritz Library will observe the following hours of operation for summer intersession, Saturday, Aug. 4, through Friday, August 17: Monday through Friday, 8 a.m. to 4:30 p.m. Saturday and Sunday, library closed Saturday, Aug. 18, 1 to 5 p.m. Sunday, Aug. 19, 1 to 5 p.m. -- Karen Cloud, Administrative Assistant, Chester Fritz Library, karencloud@mail.und.edu, 7-2618