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Butler Library Building Hours

24 hour access to Butler Library is limited to current students, faculty, and staff of Columbia University and its affiliates.
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.
Butler Library service hours 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