During the academic term, the hours of entry to these libraries are as follows:
Sterling Memorial Library:
Mon - Thurs 8:30 a.m. - 11:45 p.m.
Fri 8:30 a.m. - 4:45 p.m.
Sat 10:00 a.m. - 4:45 p.m.
Sun Noon - 11:45 a.m.
Mon - Thurs 8:30 a.m. - 1:45 a.m.
Fri 8:30 a.m. - 9:45 p.m.
Sat 10:00 a.m. - 6:45 p.m.
Sun Noon - 1:45 a.m.
Consult the Library web site for exceptions to these schedules: http://www.library.yale.edu/hours/