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Butler Library 24-Hour Reading Rooms

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.
August 2017
SundayMondayTuesdayWednesdayThursdayFridaySaturday
30
12:00PM-7:00PM
31
9:00AM-11:00PM
1
9:00AM-11:00PM
2
9:00AM-11:00PM
3
9:00AM-11:00PM
4
9:00AM-9:00PM
5
11:00AM-6:00PM
6
12:00PM-7:00PM
7
9:00AM-11:00PM
8
9:00AM-11:00PM
9
9:00AM-11:00PM
10
9:00AM-11:00PM
11
9:00AM-7:00PM
12
11:00AM-6:00PM
13
Closed
14
9:00AM-9:00PM
15
9:00AM-9:00PM
16
9:00AM-9:00PM
17
9:00AM-9:00PM
18
9:00AM-7:00PM
19
11:00AM-6:00PM
20
Closed
21
9:00AM-9:00PM
22
9:00AM-9:00PM
23
9:00AM-9:00PM
24
9:00AM-9:00PM
25
9:00AM-7:00PM
26
11:00AM-6:00PM
27
Closed
28
9:00AM-9:00PM
29
9:00AM-9:00PM
30
9:00AM-9:00PM
31
9:00AM-9:00PM
1
Open 24 hours on 09/01/2017
2
Open 24 hours on 09/02/2017