N.B. The Library opens at 10 a.m. on the first Wednesday of every month, and the Reading Room often closes to researchers on Wednesdays at 3:30 p.m. for a public lecture. If you plan to visit for research, please email us at to verify that the Reading Room will be open on the days and times you wish to come.


January 1 - January 5 — Closed to public and researchers

January 15 (Monday) — Martin Luther King, Jr. Day (observed)

May 28 (Monday) — Memorial Day (observed)

July 4 (Wednesday) — American Independence Day (observed)

September 3 (Monday) — Labor Day (observed)

October 8 (Monday) — Indigenous Peoples Day

November 22 & 23 (Thursday & Friday) — Thanksgiving Holiday (observed)

December 24 (Monday) - January 4, 2019 (Friday) — Closed to public and researchers


Please note that on the first Wednesday of each month, the Library usually does not open until after 10 a.m.

Library hours are subject to change. Please check this closing calendar for latest changes.