Science & Engineering Library

Visit us or call 212-851-2950 during the hours below. For reference help, email us any time at ref-sci@columbia.edu, or chat with a librarian.
October 2025
SundayMondayTuesdayWednesdayThursdayFridaySaturday
28
2025-09-28
11:00AM-10:00PM
29
2025-09-29
9:00AM-11:00PM
30
2025-09-30
9:00AM-11:00PM
1
2025-10-01
9:00AM-11:00PM
2
2025-10-02
9:00AM-11:00PM
3
2025-10-03
9:00AM-7:00PM
4
2025-10-04
10:00AM-6:00PM
5
2025-10-05
11:00AM-3:00AM
6
2025-10-06
9:00AM-3:00AM
7
2025-10-07
9:00AM-3:00AM
8
2025-10-08
9:00AM-3:00AM
9
2025-10-09
9:00AM-3:00AM
10
2025-10-10
9:00AM-11:00PM
11
2025-10-11
10:00AM-11:00PM
12
2025-10-12
11:00AM-3:00AM
13
2025-10-13
9:00AM-3:00AM
14
2025-10-14
9:00AM-3:00AM
15
2025-10-15
9:00AM-3:00AM
16
2025-10-16
9:00AM-3:00AM
17
2025-10-17
9:00AM-11:00PM
18
2025-10-18
10:00AM-11:00PM
19
2025-10-19
11:00AM-3:00AM
20
2025-10-20
9:00AM-3:00AM
21
2025-10-21
9:00AM-3:00AM
22
2025-10-22
9:00AM-3:00AM
23
2025-10-23
9:00AM-3:00AM
24
2025-10-24
9:00AM-11:00PM
25
2025-10-25
10:00AM-11:00PM
26
2025-10-26
11:00AM-3:00AM
27
2025-10-27
9:00AM-3:00AM
28
2025-10-28
9:00AM-3:00AM
29
2025-10-29
9:00AM-3:00AM
30
2025-10-30
9:00AM-3:00AM
31
2025-10-31
9:00AM-11:00PM
1
2025-11-01
10:00AM-11:00PM