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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 2019
SundayMondayTuesdayWednesdayThursdayFridaySaturday
28
12:00PM-7:00PM
29
9:00AM-11:00PM
30
9:00AM-11:00PM
31
9:00AM-11:00PM
1
9:00AM-11:00PM
2
9:00AM-9:00PM
3
11:00AM-6:00PM
4
12:00PM-7:00PM
5
9:00AM-11:00PM
6
9:00AM-11:00PM
7
9:00AM-11:00PM
8
9:00AM-11:00PM
9
9:00AM-9:00PM
10
11:00AM-6:00PM
11
12:00PM-7:00PM
12
9:00AM-11:00PM
13
9:00AM-11:00PM
14
9:00AM-11:00PM
15
9:00AM-11:00PM
16
9:00AM-7:00PM
17
11:00AM-6:00PM
18
Closed
19
9:00AM-9:00PM
20
9:00AM-9:00PM
21
9:00AM-9:00PM
22
9:00AM-9:00PM
23
9:00AM-7:00PM
24
11:00AM-6:00PM
25
Closed
26
9:00AM-9:00PM
27
9:00AM-9:00PM
28
9:00AM-9:00PM
29
9:00AM-9:00PM
30
9:00AM-7:00PM
31
11:00AM-6:00PM