Libraries & Hours
Find current library hours and real-time space availability.
REGULAR HOURS
Plan your visit with up-to-date library hours for all Stony Brook University Library locations. View daily opening times, session schedules, and special service hours in one convenient place.
| LIBRARIES & HOURS |
JAN 26
MONDAY
|
JAN 27
TUESDAY
|
JAN 28
WEDNESDAY
|
JAN 29
THURSDAY
|
JAN 30
FRIDAY
|
JAN 31
SATURDAY
|
FEB 01
SUNDAY
|
|---|---|---|---|---|---|---|---|
 |
9am – 5pm
|
9am – 5pm
|
9am – 5pm
|
9am – 5pm
|
Closed
|
Closed
|
Closed
|
 |
OPEN 24-HOURS
|
OPEN 24-HOURS
|
OPEN 24-HOURS
|
OPEN 24-HOURS
|
8am – 8pm
|
12pm – 8pm
|
OPEN 24-HOURS
Opens at noon |
 |
8:30am – 6pm
Staffed (24/7 ID Access) |
8:30am – 6pm
Staffed (24/7 ID Access) |
8:30am – 6pm
Staffed (24/7 ID Access) |
8:30am – 6pm
Staffed (24/7 ID Access) |
8:30am – 6pm
Staffed (24/7 ID Access) |
Closed
24/7 ID Access Only |
Closed
24/7 ID Access Only |
 |
8:30am – 8pm
|
8:30am – 8pm
|
8:30am – 8pm
|
8:30am – 8pm
|
8:30am – 5pm
|
12pm – 5pm
|
12pm – 5pm
|
 |
9am – 5pm
|
9am – 5pm
|
9am – 5pm
|
9am – 5pm
|
Closed
|
Closed
|
Closed
|
 |
8:30am – 8pm
|
8:30am – 8pm
|
8:30am – 8pm
|
8:30am – 8pm
|
8:30am – 8pm
|
12pm – 8pm
|
12pm – 8pm
|
 |
9am – 5pm
|
9am – 5pm
|
9am – 5pm
|
9am – 5pm
|
9am – 5pm
|
Closed
|
Closed
|
|
|
By Appointment
|
By Appointment
|
By Appointment
|
By Appointment
|
By Appointment
|
Closed
|
Closed
|
Semester Hours
Full semester Schedules
Winter 2026
Dec 19, 2025 – jan 24, 2026
Spring 2026
Jan 25, 2023 – May 20,2026
Summer 2026
May 21, 2026 – Aug 23, 2026
Live Space Utilization
Check real-time occupancy levels across library spaces using live sensor data. See which rooms are crowded, which have plenty of seating, and choose the best place to study before you arrive.
Syncing sensor census…
Syncing…
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Occupied
Hourly Traffic (Typical vs Now)
Chart room: —
Typical %
Now
Live Flow Data Disclaimer:
Occupancy data are based on anonymous entrance/exit sensors only. No Wi-Fi, Bluetooth, device, or personal data are collected.