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Library Hours

Weekly Hours
Monthly Hours

Display of Opening hours
	Oct 27 Monday	Oct 28 Tuesday	Oct 29 Wednesday	Oct 30 Thursday	Oct 31 Friday	Nov 01 Saturday	Nov 02 Sunday
Van Houten Library	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	1pm – 12am
Group Study Rooms	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 9:30pm	10am – 9:30pm	1pm – 11:30pm
Research Help	10am – 9pm	10am – 9pm	10am – 9pm	10am – 9pm	10am – 5pm	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 8pm	10am – 9pm	1:30pm – 8pm
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 11pm	8am – 11pm	8am – 8pm	10am – 8pm	1pm – 9pm
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 6pm	12pm – 6pm	1pm – 7pm
Today's Hours:	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	1pm – 12am

Display of Opening hours
	Nov 03 Monday	Nov 04 Tuesday	Nov 05 Wednesday	Nov 06 Thursday	Nov 07 Friday	Nov 08 Saturday	Nov 09 Sunday
Van Houten Library	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	1pm – 12am
Group Study Rooms	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 9:30pm	10am – 9:30pm	1pm – 11:30pm
Research Help	10am – 9pm	10am – 9pm	10am – 9pm	10am – 9pm	10am – 5pm	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 8pm	10am – 9pm	1:30pm – 8pm
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 11pm	8am – 11pm	8am – 8pm	10am – 8pm	1pm – 9pm
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 6pm	12pm – 6pm	1pm – 7pm
Today's Hours:	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	1pm – 12am

Display of Opening hours
	Nov 10 Monday	Nov 11 Tuesday	Nov 12 Wednesday	Nov 13 Thursday	Nov 14 Friday	Nov 15 Saturday	Nov 16 Sunday
Van Houten Library	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	10:30am – 12am
Group Study Rooms	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 9:30pm	10am – 9:30pm	10:30am – 11:30pm
Research Help	10am – 9pm	10am – 9pm	10am – 9pm	10am – 9pm	10am – 5pm	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 8pm	10am – 9pm	1:30pm – 8pm
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 11pm	8am – 11pm	8am – 8pm	10am – 8pm	1pm – 9pm
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 6pm	12pm – 6pm	1pm – 7pm
Today's Hours:	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	10:30am – 12am

Display of Opening hours
	Nov 17 Monday	Nov 18 Tuesday	Nov 19 Wednesday	Nov 20 Thursday	Nov 21 Friday	Nov 22 Saturday	Nov 23 Sunday
Van Houten Library	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	1pm – 12am
Group Study Rooms	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 1:30am	8am – 9:30pm	10am – 9:30pm	1pm – 11:30pm
Research Help	10am – 9pm	10am – 9pm	10am – 9pm	10am – 9pm	10am – 5pm	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 8pm	10am – 9pm	1:30pm – 8pm
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 11pm	8am – 11pm	8am – 8pm	10am – 8pm	1pm – 9pm
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 6pm	12pm – 6pm	1pm – 7pm
Today's Hours:	8am – 2am	8am – 2am	8am – 2am	8am – 2am	8am – 10pm	10am – 10pm	1pm – 12am

Display of Opening hours
	Nov 24 Monday	Nov 25 Tuesday	Nov 26 Wednesday	Nov 27 Thursday	Nov 28 Friday	Nov 29 Saturday	Nov 30 Sunday
Van Houten Library	8am – 2am	8am – 2am	8am – 5pm	Closed	Closed	10am – 6pm	1pm – 3am
Group Study Rooms	8am – 1:30am	8am – 1:30am	8am – 4:30pm	Closed	Closed	10am – 5:30pm	1pm – 2:30am
Research Help	10am – 9pm	10am – 9pm	10am – 5pm	Closed	Closed	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 5pm	Closed	Closed	10am – 6pm	1:30pm – 8pm
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 5pm	Closed	Closed	10am – 6pm	1pm – 9pm
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 5pm	Closed	Closed	12pm – 6pm	1pm – 7pm
Today's Hours:	8am – 2am	8am – 2am	8am – 5pm	Closed	Closed	10am – 6pm	1pm – 3am

Display of Opening hours
	Dec 01 Monday	Dec 02 Tuesday	Dec 03 Wednesday	Dec 04 Thursday	Dec 05 Friday	Dec 06 Saturday	Dec 07 Sunday
Van Houten Library	8am – 3am	8am – 3am	8am – 3am	8am – 3am	8am – 11pm	10am – 12am	1pm – 3am
Group Study Rooms	8am – 2:30am	8am – 2:30am	8am – 2:30am	8am – 2:30am	8am – 10:30pm	10am – 11:30pm	1pm – 2:30am
Research Help	10am – 9pm	10am – 9pm	10am – 9pm	10am – 9pm	10am – 5pm	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 8pm	10am – 9pm	1:30pm – 8pm
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 11pm	8am – 11pm	8am – 8pm	10am – 8pm	1pm – 9pm
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 6pm	12pm – 6pm	1pm – 7pm
Today's Hours:	8am – 3am	8am – 3am	8am – 3am	8am – 3am	8am – 11pm	10am – 12am	1pm – 3am

Display of Opening hours
	Dec 08 Monday	Dec 09 Tuesday	Dec 10 Wednesday	Dec 11 Thursday	Dec 12 Friday	Dec 13 Saturday	Dec 14 Sunday
Van Houten Library	8am – 3am	8am – 3am	8am – 3am	8am – 3am	8am – 11pm	10am – 12am	1pm – 3am
Group Study Rooms	8am – 2:30am	8am – 2:30am	8am – 2:30am	8am – 2:30am	8am – 10:30pm	10am – 11:30pm	1pm – 2:30am
Research Help	10am – 9pm	10am – 9pm	10am – 9pm	10am – 9pm	10am – 5pm	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 8pm	10am – 9pm	1:30pm – 8pm
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 11pm	8am – 11pm	8am – 8pm	10am – 8pm	1pm – 9pm
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 6pm	12pm – 6pm	1pm – 7pm
Today's Hours:	8am – 3am	8am – 3am	8am – 3am	8am – 3am	8am – 11pm	10am – 12am	1pm – 3am

Display of Opening hours
	Dec 15 Monday	Dec 16 Tuesday	Dec 17 Wednesday	Dec 18 Thursday	Dec 19 Friday	Dec 20 Saturday	Dec 21 Sunday
Van Houten Library	8am – 3am	8am – 3am	8am – 3am	8am – 3am	8am – 11pm	10am – 12am	Closed
Group Study Rooms	8am – 2:30am	8am – 2:30am	8am – 2:30am	8am – 2:30am	8am – 10:30pm	10am – 11:30pm	Closed
Research Help	10am – 9pm	10am – 9pm	10am – 9pm	10am – 9pm	10am – 5pm	Closed	4pm – 9pm
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 8pm	10am – 9pm	Closed
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 11pm	8am – 11pm	8am – 11pm	8am – 11pm	8am – 8pm	10am – 8pm	Closed
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed
Littman Library	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 6pm	12pm – 6pm	–
Today's Hours:	8am – 3am	8am – 3am	8am – 3am	8am – 3am	8am – 11pm	10am – 12am	Closed

Display of Opening hours
	Dec 22 Monday	Dec 23 Tuesday	Dec 24 Wednesday	Dec 25 Thursday	Dec 26 Friday	Dec 27 Saturday	Dec 28 Sunday
Van Houten Library	8am – 6pm	8am – 6pm	8am – 5pm	Closed	Closed	Closed	Closed
Group Study Rooms	8am – 5:30pm	8am – 5:30pm	8am – 4:30pm	Closed	Closed	Closed	Closed
Research Help	10am – 6pm	10am – 6pm	10am – 9pm	–	–	–	–
Computer Lab Assistant	8am – 9pm	8am – 9pm	8am – 9pm	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	–	–	–	–
Leir Data Observatory	8am – 6pm	8am – 6pm	8am – 5pm	–	–	–	–
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	8am – 6pm	8am – 6pm	8am – 5pm	Closed	Closed	Closed	Closed

Display of Opening hours
	Dec 29 Monday	Dec 30 Tuesday	Dec 31 Wednesday	Jan 01 Thursday	Jan 02 Friday	Jan 03 Saturday	Jan 04 Sunday
Van Houten Library	Closed	Closed	Closed	Closed	Closed	–	–
Group Study Rooms	Closed	Closed	Closed	Closed	Closed	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	Closed	Closed	Closed	Closed	Closed	–	–

Display of Opening hours
	Jan 05 Monday	Jan 06 Tuesday	Jan 07 Wednesday	Jan 08 Thursday	Jan 09 Friday	Jan 10 Saturday	Jan 11 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Jan 12 Monday	Jan 13 Tuesday	Jan 14 Wednesday	Jan 15 Thursday	Jan 16 Friday	Jan 17 Saturday	Jan 18 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Jan 19 Monday	Jan 20 Tuesday	Jan 21 Wednesday	Jan 22 Thursday	Jan 23 Friday	Jan 24 Saturday	Jan 25 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Jan 26 Monday	Jan 27 Tuesday	Jan 28 Wednesday	Jan 29 Thursday	Jan 30 Friday	Jan 31 Saturday	Feb 01 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Feb 02 Monday	Feb 03 Tuesday	Feb 04 Wednesday	Feb 05 Thursday	Feb 06 Friday	Feb 07 Saturday	Feb 08 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Feb 09 Monday	Feb 10 Tuesday	Feb 11 Wednesday	Feb 12 Thursday	Feb 13 Friday	Feb 14 Saturday	Feb 15 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Feb 16 Monday	Feb 17 Tuesday	Feb 18 Wednesday	Feb 19 Thursday	Feb 20 Friday	Feb 21 Saturday	Feb 22 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Feb 23 Monday	Feb 24 Tuesday	Feb 25 Wednesday	Feb 26 Thursday	Feb 27 Friday	Feb 28 Saturday	Mar 01 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Mar 02 Monday	Mar 03 Tuesday	Mar 04 Wednesday	Mar 05 Thursday	Mar 06 Friday	Mar 07 Saturday	Mar 08 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Mar 09 Monday	Mar 10 Tuesday	Mar 11 Wednesday	Mar 12 Thursday	Mar 13 Friday	Mar 14 Saturday	Mar 15 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	–	–	–	–	–	–	–
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
November 2025
Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
					1 Van Houten Library 10am – 10pm Group Study Rooms 10am – 9:30pm Research Help Closed Computer Lab Assistant 10am – 9pm Rare Book Room Closed Leir Data Observatory 10am – 8pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 10pm	2 Van Houten Library 1pm – 12am Group Study Rooms 1pm – 11:30pm Research Help 4pm – 9pm Computer Lab Assistant 1:30pm – 8pm Rare Book Room Closed Leir Data Observatory 1pm – 9pm IST Service Desk Closed Littman Library 1pm – 7pm Today's Hours: 1pm – 12am
3 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	4 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	5 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	6 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	7 Van Houten Library 8am – 10pm Group Study Rooms 8am – 9:30pm Research Help 10am – 5pm Computer Lab Assistant 8am – 8pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 8pm IST Service Desk 8am – 6pm Littman Library 8am – 6pm Today's Hours: 8am – 10pm	8 Van Houten Library 10am – 10pm Group Study Rooms 10am – 9:30pm Research Help Closed Computer Lab Assistant 10am – 9pm Rare Book Room Closed Leir Data Observatory 10am – 8pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 10pm	9 Van Houten Library 1pm – 12am Group Study Rooms 1pm – 11:30pm Research Help 4pm – 9pm Computer Lab Assistant 1:30pm – 8pm Rare Book Room Closed Leir Data Observatory 1pm – 9pm IST Service Desk Closed Littman Library 1pm – 7pm Today's Hours: 1pm – 12am
10 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	11 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	12 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	13 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	14 Van Houten Library 8am – 10pm Group Study Rooms 8am – 9:30pm Research Help 10am – 5pm Computer Lab Assistant 8am – 8pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 8pm IST Service Desk 8am – 6pm Littman Library 8am – 6pm Today's Hours: 8am – 10pm	15 Van Houten Library 10am – 10pm Group Study Rooms 10am – 9:30pm Research Help Closed Computer Lab Assistant 10am – 9pm Rare Book Room Closed Leir Data Observatory 10am – 8pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 10pm	16 Van Houten Library 10:30am – 12am Group Study Rooms 10:30am – 11:30pm Research Help 4pm – 9pm Computer Lab Assistant 1:30pm – 8pm Rare Book Room Closed Leir Data Observatory 1pm – 9pm IST Service Desk Closed Littman Library 1pm – 7pm Today's Hours: 10:30am – 12am
17 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	18 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	19 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	20 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	21 Van Houten Library 8am – 10pm Group Study Rooms 8am – 9:30pm Research Help 10am – 5pm Computer Lab Assistant 8am – 8pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 8pm IST Service Desk 8am – 6pm Littman Library 8am – 6pm Today's Hours: 8am – 10pm	22 Van Houten Library 10am – 10pm Group Study Rooms 10am – 9:30pm Research Help Closed Computer Lab Assistant 10am – 9pm Rare Book Room Closed Leir Data Observatory 10am – 8pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 10pm	23 Van Houten Library 1pm – 12am Group Study Rooms 1pm – 11:30pm Research Help 4pm – 9pm Computer Lab Assistant 1:30pm – 8pm Rare Book Room Closed Leir Data Observatory 1pm – 9pm IST Service Desk Closed Littman Library 1pm – 7pm Today's Hours: 1pm – 12am
24 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	25 Van Houten Library 8am – 2am Group Study Rooms 8am – 1:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 2am	26 Van Houten Library 8am – 5pm Group Study Rooms 8am – 4:30pm Research Help 10am – 5pm Computer Lab Assistant 8am – 5pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 5pm IST Service Desk 8am – 6pm Littman Library 8am – 5pm Today's Hours: 8am – 5pm	27 Van Houten Library Closed Group Study Rooms Closed Research Help Closed Computer Lab Assistant Closed Rare Book Room By Appointment Only Leir Data Observatory Closed IST Service Desk 8am – 6pm Littman Library Closed Today's Hours: Closed	28 Van Houten Library Closed Group Study Rooms Closed Research Help Closed Computer Lab Assistant Closed Rare Book Room By Appointment Only Leir Data Observatory Closed IST Service Desk 8am – 6pm Littman Library Closed Today's Hours: Closed	29 Van Houten Library 10am – 6pm Group Study Rooms 10am – 5:30pm Research Help Closed Computer Lab Assistant 10am – 6pm Rare Book Room Closed Leir Data Observatory 10am – 6pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 6pm	30 Van Houten Library 1pm – 3am Group Study Rooms 1pm – 2:30am Research Help 4pm – 9pm Computer Lab Assistant 1:30pm – 8pm Rare Book Room Closed Leir Data Observatory 1pm – 9pm IST Service Desk Closed Littman Library 1pm – 7pm Today's Hours: 1pm – 3am

Display of Opening hours
December 2025
Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
1 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	2 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	3 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	4 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	5 Van Houten Library 8am – 11pm Group Study Rooms 8am – 10:30pm Research Help 10am – 5pm Computer Lab Assistant 8am – 8pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 8pm IST Service Desk 8am – 6pm Littman Library 8am – 6pm Today's Hours: 8am – 11pm	6 Van Houten Library 10am – 12am Group Study Rooms 10am – 11:30pm Research Help Closed Computer Lab Assistant 10am – 9pm Rare Book Room Closed Leir Data Observatory 10am – 8pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 12am	7 Van Houten Library 1pm – 3am Group Study Rooms 1pm – 2:30am Research Help 4pm – 9pm Computer Lab Assistant 1:30pm – 8pm Rare Book Room Closed Leir Data Observatory 1pm – 9pm IST Service Desk Closed Littman Library 1pm – 7pm Today's Hours: 1pm – 3am
8 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	9 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	10 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	11 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	12 Van Houten Library 8am – 11pm Group Study Rooms 8am – 10:30pm Research Help 10am – 5pm Computer Lab Assistant 8am – 8pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 8pm IST Service Desk 8am – 6pm Littman Library 8am – 6pm Today's Hours: 8am – 11pm	13 Van Houten Library 10am – 12am Group Study Rooms 10am – 11:30pm Research Help Closed Computer Lab Assistant 10am – 9pm Rare Book Room Closed Leir Data Observatory 10am – 8pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 12am	14 Van Houten Library 1pm – 3am Group Study Rooms 1pm – 2:30am Research Help 4pm – 9pm Computer Lab Assistant 1:30pm – 8pm Rare Book Room Closed Leir Data Observatory 1pm – 9pm IST Service Desk Closed Littman Library 1pm – 7pm Today's Hours: 1pm – 3am
15 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	16 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	17 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	18 Van Houten Library 8am – 3am Group Study Rooms 8am – 2:30am Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 11pm IST Service Desk 8am – 6pm Littman Library 8am – 8:30pm Today's Hours: 8am – 3am	19 Van Houten Library 8am – 11pm Group Study Rooms 8am – 10:30pm Research Help 10am – 5pm Computer Lab Assistant 8am – 8pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 8pm IST Service Desk 8am – 6pm Littman Library 8am – 6pm Today's Hours: 8am – 11pm	20 Van Houten Library 10am – 12am Group Study Rooms 10am – 11:30pm Research Help Closed Computer Lab Assistant 10am – 9pm Rare Book Room Closed Leir Data Observatory 10am – 8pm IST Service Desk Closed Littman Library 12pm – 6pm Today's Hours: 10am – 12am	21 Van Houten Library Closed Group Study Rooms Closed Research Help 4pm – 9pm Computer Lab Assistant Closed Rare Book Room Closed Leir Data Observatory Closed IST Service Desk Closed Today's Hours: Closed
22 Van Houten Library 8am – 6pm Group Study Rooms 8am – 5:30pm Research Help 10am – 6pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 6pm IST Service Desk 8am – 6pm Today's Hours: 8am – 6pm	23 Van Houten Library 8am – 6pm Group Study Rooms 8am – 5:30pm Research Help 10am – 6pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 6pm IST Service Desk 8am – 6pm Today's Hours: 8am – 6pm	24 Van Houten Library 8am – 5pm Group Study Rooms 8am – 4:30pm Research Help 10am – 9pm Computer Lab Assistant 8am – 9pm Rare Book Room By Appointment Only Leir Data Observatory 8am – 5pm IST Service Desk 8am – 6pm Today's Hours: 8am – 5pm	25 Van Houten Library Closed Group Study Rooms Closed Today's Hours: Closed	26 Van Houten Library Closed Group Study Rooms Closed Today's Hours: Closed	27 Van Houten Library Closed Group Study Rooms Closed Today's Hours: Closed	28 Van Houten Library Closed Group Study Rooms Closed Today's Hours: Closed
29 Van Houten Library Closed Group Study Rooms Closed Today's Hours: Closed	30 Van Houten Library Closed Group Study Rooms Closed Today's Hours: Closed	31 Van Houten Library Closed Group Study Rooms Closed Today's Hours: Closed

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