Library Hours

Weekly Hours
Monthly Hours

Display of Opening hours
	Jun 30 Monday	Jul 01 Tuesday	Jul 02 Wednesday	Jul 03 Thursday	Jul 04 Friday	Jul 05 Saturday	Jul 06 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	Closed	Closed	Closed	Closed
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	Closed	Closed	Closed	Closed
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	Remote Services Provided 10:00am to 5:00pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	Closed	Closed	Closed	Closed
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed	Closed	Closed
Littman Library	8am – 5pm	9am – 6pm	9am – 6pm	9am – 6pm	Closed	Closed	Closed
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	Closed	Closed	Closed	Closed

Display of Opening hours
	Jul 07 Monday	Jul 08 Tuesday	Jul 09 Wednesday	Jul 10 Thursday	Jul 11 Friday	Jul 12 Saturday	Jul 13 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 5:30pm	Closed	Closed
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	10am – 5pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 5:30pm	Closed	Closed
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 4pm	Closed	Closed
Littman Library	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed	Closed
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed

Display of Opening hours
	Jul 14 Monday	Jul 15 Tuesday	Jul 16 Wednesday	Jul 17 Thursday	Jul 18 Friday	Jul 19 Saturday	Jul 20 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 5:30pm	Closed	Closed
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	10am – 5pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 5:30pm	Closed	Closed
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 4pm	Closed	Closed
Littman Library	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed	Closed
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed

Display of Opening hours
	Jul 21 Monday	Jul 22 Tuesday	Jul 23 Wednesday	Jul 24 Thursday	Jul 25 Friday	Jul 26 Saturday	Jul 27 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 5:30pm	Closed	Closed
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	10am – 5pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 5:30pm	Closed	Closed
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 4pm	Closed	Closed
Littman Library	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed	Closed
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed

Display of Opening hours
	Jul 28 Monday	Jul 29 Tuesday	Jul 30 Wednesday	Jul 31 Thursday	Aug 01 Friday	Aug 02 Saturday	Aug 03 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 5:30pm	Closed	Closed
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	10am – 5pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 5:30pm	Closed	Closed
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 4pm	Closed	Closed
Littman Library	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed	Closed
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed

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

Display of Opening hours
	Aug 11 Monday	Aug 12 Tuesday	Aug 13 Wednesday	Aug 14 Thursday	Aug 15 Friday	Aug 16 Saturday	Aug 17 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 5:30pm	Closed	Closed
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	10am – 5pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 5:30pm	Closed	Closed
IST Service Desk	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	8am – 4pm	–	–
Littman Library	8am – 6pm	8am – 6pm	8am – 6pm	8am – 6pm	Closed	Closed	Closed
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed

Display of Opening hours
	Aug 18 Monday	Aug 19 Tuesday	Aug 20 Wednesday	Aug 21 Thursday	Aug 22 Friday	Aug 23 Saturday	Aug 24 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 5:30pm	Closed	Closed
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	10am – 5pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 5:30pm	Closed	Closed
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	Closed

Display of Opening hours
	Aug 25 Monday	Aug 26 Tuesday	Aug 27 Wednesday	Aug 28 Thursday	Aug 29 Friday	Aug 30 Saturday	Aug 31 Sunday
Van Houten Library	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	–
Group Study Rooms	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 8:30pm	8am – 5:30pm	Closed	–
Research Help	10am – 5pm	10am – 5pm	10am – 5pm	10am – 5pm	Closed	Closed	Closed
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 7:30pm	8am – 5:30pm	Closed	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	8am – 9pm	8am – 9pm	8am – 9pm	8am – 9pm	8am – 6pm	Closed	–

Display of Opening hours
	Sep 01 Monday	Sep 02 Tuesday	Sep 03 Wednesday	Sep 04 Thursday	Sep 05 Friday	Sep 06 Saturday	Sep 07 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Sep 08 Monday	Sep 09 Tuesday	Sep 10 Wednesday	Sep 11 Thursday	Sep 12 Friday	Sep 13 Saturday	Sep 14 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Sep 15 Monday	Sep 16 Tuesday	Sep 17 Wednesday	Sep 18 Thursday	Sep 19 Friday	Sep 20 Saturday	Sep 21 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

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

Display of Opening hours
	Sep 29 Monday	Sep 30 Tuesday	Oct 01 Wednesday	Oct 02 Thursday	Oct 03 Friday	Oct 04 Saturday	Oct 05 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Oct 06 Monday	Oct 07 Tuesday	Oct 08 Wednesday	Oct 09 Thursday	Oct 10 Friday	Oct 11 Saturday	Oct 12 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Oct 13 Monday	Oct 14 Tuesday	Oct 15 Wednesday	Oct 16 Thursday	Oct 17 Friday	Oct 18 Saturday	Oct 19 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

Display of Opening hours
	Oct 20 Monday	Oct 21 Tuesday	Oct 22 Wednesday	Oct 23 Thursday	Oct 24 Friday	Oct 25 Saturday	Oct 26 Sunday
Van Houten Library	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's 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	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

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	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

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	–	–	–	–	–	–	–
Group Study Rooms	–	–	–	–	–	–	–
Research Help	–	–	–	–	–	–	–
Computer Lab Assistant	–	–	–	–	–	–	–
Rare Book Room	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	By Appointment Only	Closed	Closed
Leir Data Observatory	–	–	–	–	–	–	–
IST Service Desk	–	–	–	–	–	–	–
Littman Library	–	–	–	–	–	–	–
Today's Hours:	–	–	–	–	–	–	–

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

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

Display of Opening hours
September 2025
Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
1 Van Houten Library Rare Book Room By Appointment Only	2 Van Houten Library Rare Book Room By Appointment Only	3 Van Houten Library Rare Book Room By Appointment Only	4 Van Houten Library Rare Book Room By Appointment Only	5 Van Houten Library Rare Book Room By Appointment Only	6 Van Houten Library Rare Book Room Closed	7 Van Houten Library Rare Book Room Closed
8 Van Houten Library Rare Book Room By Appointment Only	9 Van Houten Library Rare Book Room By Appointment Only	10 Van Houten Library Rare Book Room By Appointment Only	11 Van Houten Library Rare Book Room By Appointment Only	12 Van Houten Library Rare Book Room By Appointment Only	13 Van Houten Library Rare Book Room Closed	14 Van Houten Library Rare Book Room Closed
15 Van Houten Library Rare Book Room By Appointment Only	16 Van Houten Library Rare Book Room By Appointment Only	17 Van Houten Library Rare Book Room By Appointment Only	18 Van Houten Library Rare Book Room By Appointment Only	19 Van Houten Library Rare Book Room By Appointment Only	20 Van Houten Library Rare Book Room Closed	21 Van Houten Library Rare Book Room Closed
22 Van Houten Library Rare Book Room By Appointment Only	23 Van Houten Library Rare Book Room By Appointment Only	24 Van Houten Library Rare Book Room By Appointment Only	25 Van Houten Library Rare Book Room By Appointment Only	26 Van Houten Library Rare Book Room By Appointment Only	27 Van Houten Library Rare Book Room Closed	28 Van Houten Library Rare Book Room Closed
29 Van Houten Library Rare Book Room By Appointment Only	30 Van Houten Library Rare Book Room By Appointment Only

Display of Opening hours
October 2025
Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
		1 Van Houten Library Rare Book Room By Appointment Only	2 Van Houten Library Rare Book Room By Appointment Only	3 Van Houten Library Rare Book Room By Appointment Only	4 Van Houten Library Rare Book Room Closed	5 Van Houten Library Rare Book Room Closed
6 Van Houten Library Rare Book Room By Appointment Only	7 Van Houten Library Rare Book Room By Appointment Only	8 Van Houten Library Rare Book Room By Appointment Only	9 Van Houten Library Rare Book Room By Appointment Only	10 Van Houten Library Rare Book Room By Appointment Only	11 Van Houten Library Rare Book Room Closed	12 Van Houten Library Rare Book Room Closed
13 Van Houten Library Rare Book Room By Appointment Only	14 Van Houten Library Rare Book Room By Appointment Only	15 Van Houten Library Rare Book Room By Appointment Only	16 Van Houten Library Rare Book Room By Appointment Only	17 Van Houten Library Rare Book Room By Appointment Only	18 Van Houten Library Rare Book Room Closed	19 Van Houten Library Rare Book Room Closed
20 Van Houten Library Rare Book Room By Appointment Only	21 Van Houten Library Rare Book Room By Appointment Only	22 Van Houten Library Rare Book Room By Appointment Only	23 Van Houten Library Rare Book Room By Appointment Only	24 Van Houten Library Rare Book Room By Appointment Only	25 Van Houten Library Rare Book Room Closed	26 Van Houten Library Rare Book Room Closed
27 Van Houten Library Rare Book Room By Appointment Only	28 Van Houten Library Rare Book Room By Appointment Only	29 Van Houten Library Rare Book Room By Appointment Only	30 Van Houten Library Rare Book Room By Appointment Only	31 Van Houten Library Rare Book Room By Appointment Only

Closed Dates, 2024-2025 Academic Year

Closed - Independence Day, Thursday, July 4, 2024, and Friday, July 5, 2024
Closed - Labor Day, Monday, September 2, 2024
Closed - Thanksgiving, Thursday, November 28 & Friday, November 29, 2024
Closed - Winter Break, Wednesday, December 25, 2024, through Wednesday, January 1, 2025
Closed - Martin Luther King Day, Monday, January 20, 2025
Closed - Good Friday, Friday, April 18, 2025
Closed - Easter Sunday, Sunday, April 20, 2025
Closed - Memorial Day, Monday, May 26, 2025
Closed - Juneteenth, Friday, June 20, 2025

Hours of Operation

Library Hours

Closed Dates, 2024-2025 Academic Year