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Butler Library 24-Hour Reading Rooms

Check hours for: Butler Library Service Hours

Open to all during Butler Library Service Hours; all other hours are limited to current students, faculty, and staff of Columbia University and its affiliates. During 24/7 hours, each of the 24-hour reading rooms will close for one hour for maintenance. Room closures and other information about the reading rooms may be found here.
September 2017
SundayMondayTuesdayWednesdayThursdayFridaySaturday
27
Closed
28
9:00AM-9:00PM
29
9:00AM-9:00PM
30
9:00AM-9:00PM
31
9:00AM-9:00PM
1
12:00AM-12:00AM
2
12:00AM-12:00AM
3
12:00AM-12:00AM
4
Closed
5
12:00AM-12:00AM
24-hour access begins at 9am
6
12:00AM-12:00AM
7
12:00AM-12:00AM
8
12:00AM-12:00AM
9
12:00AM-12:00AM
10
12:00AM-12:00AM
11
12:00AM-12:00AM
12
12:00AM-12:00AM
13
12:00AM-12:00AM
14
12:00AM-12:00AM
15
12:00AM-12:00AM
16
12:00AM-12:00AM
17
12:00AM-12:00AM
18
12:00AM-12:00AM
19
12:00AM-12:00AM
20
12:00AM-12:00AM
21
12:00AM-12:00AM
22
12:00AM-12:00AM
23
12:00AM-12:00AM
24
12:00AM-12:00AM
25
12:00AM-12:00AM
26
12:00AM-12:00AM
27
12:00AM-12:00AM
28
12:00AM-12:00AM
29
12:00AM-12:00AM
30
12:00AM-12:00AM