Library of the Health Sciences announces Memorial Day weekend and summer hours The Library of the Health Sciences hours for Memorial Day weekend are: Thursday, May 21 - 7:30 a.m. to 6 p.m. Friday, May 22 - 8 a.m. to 5 p.m. Saturday, May 23 - 1 p.m. to 5 p.m. Sunday and Monday, May 24-25 - closed Summer hours begin on Tuesday, May 26. Monday, Wednesday, Friday - 8 a.m. to 6 p.m. Tuesday & Thursday - 8 a.m. to 8 p.m. Saturday - 1 p.m. to 5 p.m. Sunday - closed -- April Byars, Administrative Assistant, Library of the Health Sciences, abyars@medicine.nodak.edu, 777-3893