Fridays and Saturdays 9:30 a.m.-9:00 p.m. Sundays, Tuesdays-Thursdays 9:30 a.m.-5:30 p.m. Met Holiday Mondays in the Main Building: December 28, 2009; January 18, February 15, May 31, 2010 9:30 a.m.-5:30 p.m. All other Mondays closed; Jan. 1, Thanksgiving, and Dec. 25 closed