Oklahoma State University - Library

When the Library is closed, books can be returned at the outside "book drop" on the west end of the South Entrance.

**Spring Semester (January 7-May 3)**
Days/Dates	Library Building Hours	Reference Desk Hours	I.M. Reference Hours
Sunday	9 am - 2 am	10 am - Midnight	1 pm - Midnight
Monday-Thursday	7 am - 2 am	8 am - Midnight	1 pm - Midnight
Friday	7 am - 10 pm	8 am - 6 pm	1 pm - 6 pm
Saturday	9 am - 10 pm	10 am - 5 pm	1 pm - 5 pm
Exceptions:
Planned Power Outage (Feb. 9)
Sat. Feb. 9	Noon - 10 pm	Noon - 5 pm	1 pm - 5pm
Spring Break (March 15-24)
Friday 3/15	7 am - 6 pm	8 am - 5 pm	1 pm - 5 pm
Saturday 3/16	1 pm - 5 pm	1 pm - 4 pm	No Service
Sunday 3/17	Closed	No Service	No Service
Monday - Friday	7:30 am - 6 pm	8 am - 5 pm	1 pm - 5pm
Saturday 3/23	1 pm - 5 pm	1 pm - 4 pm	No Service
Sunday 3/24	1 pm - 10 pm	1 pm - 9 pm	No Service
Extended Study (April 21-May 3)
Sunday 4/21	Opens at 9 am	10 am - Midnight	1 pm - Midnight
Monday-Thursday	24 hours	8 am - Midnight	1 pm - Midnight
Friday 4/26	24 hours	8 am - 6 pm	1 pm - 5 pm
Saturday 4/27	24 hours	10 am - 5 pm	1 pm - 5 pm
Sunday 4/28	24 hours	10 am - Midnight	1 pm - Midnight
Monday-Thursday	24 hours	8 am - Midnight	No Service
Friday 5/3	Closes at 8 pm	8 am - 5 pm	No Service

**May Intersession (May 4-12)**
Days/Dates	Library Building Hours	Reference Desk Hours	IM Reference Hours
Saturday 5/4	1 pm - 5 pm	Closed	Closed
Sunday 5/5	Closed	Closed	Closed
Monday-Friday	7:30 am - 6 pm	8 am - 5 pm	Closed
Saturday 5/11	1 pm - 5pm	Closed	Closed
Sunday 5/12	Closed	Closed	Closed

**Short Session (May 13-June 2)**
Days/Dates	Library Building Hours	Reference Desk Hours	IM Reference Hours
Saturday-Sunday	1 pm - 7 pm	1 pm - 5 pm	Closed
Monday-Thursday	7:30 am - 9 pm	8 am - 8 pm	1 pm - 8 pm
Friday	7:30 am - 6 pm	8 am - 5 pm	1 pm - 5 pm
Exception: Memorial Day Weekend
Sat 5/25	1 pm - 7 pm	Closed	Closed
Sun 5/26	Closed	Closed	Closed
Monday 5/27	1 pm - 7 pm	Closed	Closed

**Summer Session (June 3-July 1)**
Days/Dates	Library Building Hours	Reference Desk Hours	IM Reference Hours
Monday-Thursday	7:30 am - 10 pm	8 am - 8 pm	1 pm - 8 pm
Friday	7:30 am -7 pm	8 am - 5 pm	1 pm - 5 pm
Saturday-Sunday	1 pm - 7 pm	1 pm - 5 pm	Closed

OSU Library hours are subject to change. For the latest information about the Edmon Low Library Hours, call the Hours Line at 405-744-5029.

NOTE: Branch library hours may differ from the Edmon Low Library hours.

Other Library Department Hours:

Branch Library Hours:

Exceptions: