Medical library lists holiday hours The Harley E. French Library of the Health Sciences Martin Luther King holiday weekend hours are: Friday, Jan. 12, 7:30 a.m. to 5 p.m.; Saturday, Jan. 13, 1 to 5 p.m.; Sunday, Jan. 14, 1 to 5 p.m.; Monday, Jan. 15, 1 p.m. to midnight.