Library of the Health Sciences lists holiday hours The Library of the Health Sciences holiday hours for Presidents Day weekend follows: Friday, Feb. 16, regular hours (7:30 a.m. to 6 p.m.); Saturday, Feb. 17, 1 to 5 p.m.; Sunday, Feb. 18, 1 to 5 p.m.; Monday, Feb. 19, 1 p.m. to midnight. Regular hours resume Tuesday, Feb. 20. -- April Byars, Administrative Assistant, Library of the Health Sciences, abyars@medicine.nodak.edu, 777-3893