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Library Calendar


Hours at other Harvard Libraries

24/7 Library Access

Harvard Law School students have 24 hours access to the second floor of the Library as a study space during the academic year.
Library services and access to other floors are only available during regular hours.

Reading and Exam Period Restricted Access

During fall and spring reading and exam periods, HUID access to the Library is limited to Harvard Law School students, faculty and staff. Other patrons who need to use the Law collection must check in at the Circulation Desk for access.

Academic Year Hours

Circulation

  • Sunday: 9:00 a.m. to midnight
  • Monday-Thursday: 8:00 a.m. to midnight
  • Friday: 8:00 a.m. to 9:00 p.m.
  • Saturday: 9:00 a.m. to 9:00 p.m.

Reference

  • Monday-Friday: 9:00 a.m. to 6:00 p.m.
  • Saturday-Sunday: CLOSED

 Historical & Special Collections

  • Monday-Friday: By appointment 10:00 a.m. to 5:00 p.m.
  • Saturday-Sunday: CLOSED
  • Beginning in January 2018, appointments will be available Tuesday-Friday from 10:00 a.m. to 5:00 p.m.

Summer Hours

Circulation

  • Monday-Thursday: 8:00 a.m. to 11:00 p.m.
  • Friday: 8:00 a.m. to 8:00 p.m.
  • Saturday-Sunday: CLOSED

Reference

  • Monday-Friday: 9:00 a.m. to 5:00 p.m.
  • CLOSED

Historical & Special Collections

  • Tuesday-Friday: By appointment 10:00 a.m. to 5:00 p.m.
  • Saturday-Monday: CLOSED

Late Summer Hours

Circulation

  • Monday-Friday: 8:00 a.m. to 6:00 p.m.
  • Saturday-Sunday: CLOSED

Reference

  • Monday-Friday: 9:00 a.m. to 5:00 p.m.
  • CLOSED

Historical & Special Collections

  • Tuesday-Friday: By appointment 10:00 a.m. to 5:00 p.m.
  • Saturday-Monday: CLOSED

Holiday Hours

The Library is open on Columbus Day (Federal) / Indigenous Peoples’ Day (City of Cambridge), Martin Luther King Day, Presidents Day and Veterans Day. Labor Day varies.

The Library is closed on Memorial Day weekend; Independence Day; Thanksgiving Day, including the Friday and Saturday after Thanksgiving; and winter recess from Christmas Day through New Year’s Day.

The Library closes early on the Wednesday before Thanksgiving Day and on Christmas Eve.