Library offers guidelines for safe usage Following the start of hybrid classes starting on Oct. 5, Ewha Womans University Library (Library) opened for service with a few adjustments. The Library Stacks from second to the fifth floor are opened from 9 a.m. to 10 p.m. on weekdays. On Saturdays, it runs from 9 a.m. to 3 p.m. while Sundays are closed. As students can study in desks provided in the S..