Chester Fritz Library lists spring semester hours Spring semester hours for the Chester Fritz Library are Monday through Thursday, 8 a.m. to midnight; Friday, 8 a.m. to 4:30 p.m.; Saturday, 10 a.m. to 6 p.m.; Sunday, 1 p.m. to midnight. -- Karen Cloud, Administrative Assistant, Chester Fritz Library, karencloud@mail.und.edu, 7-2618