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Library Services Hours

Call: (760) 750-4348

Fall Semester, August 26 - December 16

Mon-Thu 7AM-12AM
Fri 7AM-5PM
Sat 9AM-5PM
Sun 12PM-12AM


Mon, May 29 Memorial Day
Mon, Sept 04 Labor Day
Fri, November 11 Veteran's Day Observed
Wed, November 22 Early Close 8:00pm
Thu - Sat, November 23-25 Closed - Thanksgiving

Ways to get Research Help

Chat reference is available 24/7.

CSUSM Librarians are available 8am-9pm, M-Th, and 8am-3pm on Fridays. On evenings and weekends, a non-CSUSM librarian may respond to chat questions.



In person reference is available M-F 10am-3pm, except for holiday closures. Please visit 3rd floor Checkout Desk and ask to speak with a Librarian.


Telephone: (760) 750-4391


Email your subject librarian at any time for specialized help (expect a 24-48 hour turnaround time).

For general research questions email us at


For holidays and early closures, refer to Library Building Hours.