Ask a Librarian Chat Service Hours

Semester Hours

During the Fall and Spring Semesters, 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 summer and through intersessions, the Ask-A-Librarian is generally staffed:  

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

There may be periods 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.