The library's normal operating hours are
-
Monday, and Wednesday through Friday, from 9:30 AM to 4:45 PM
-
Tuesday from 9:30 AM to 7:45 PM (the library opens at 12:00 PM the second Tuesday of the month)
-
Saturday from 10:00 AM to 3:00 PM
Staff retrieves materials up to 45 minutes before the library closes. Reading room closes 15 minutes before the library.
An advance appointment is strongly encouraged for all researchers. Please log in to your Portal1791 account to select your preferred visit dates.
For a list of upcoming closures, visit the Hours and Admission page on our website.