Ask a Librarian Chat Service Hours


2016 Fall Hours (September - December)

During the Fall the Ask-A-Librarian service is generally staffed:

Monday and Tuesday from 10:00 am - 9:00 pm
Wednesday through Friday from 10:00 am - 5:00 pm, and
Sundays from 5:00 - 9:00 pm.

During the winter intersession (December 22 - January 16) the Ask-A-Librarian hours are:

Monday - Friday 10:00 am - 5:00 pm

There may be periods during this time when the service is unavailable. If that is the case, please contact us by one of the other means on the following page.


Use of Ask a Librarian services is limited to Columbia University faculty, students, staff, and alumni; and to those with questions specific to the Columbia University Libraries, the use of its collections, and its policies. If you’re not affiliated with Columbia University, please direct your query to your local public, state, or academic library.