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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.
July 2018
SundayMondayTuesdayWednesdayThursdayFridaySaturday
1
12:00PM-7:00PM
2
9:00AM-11:00PM
3
9:00AM-11:00PM
4
Closed
University Holiday
5
9:00AM-11:00PM
6
9:00AM-9:00PM
7
11:00AM-6:00PM
8
12:00PM-7:00PM
9
9:00AM-11:00PM
10
9:00AM-11:00PM
11
9:00AM-11:00PM
12
9:00AM-11:00PM
13
9:00AM-9:00PM
14
11:00AM-6:00PM
15
12:00PM-7:00PM
16
9:00AM-11:00PM
17
9:00AM-11:00PM
18
9:00AM-11:00PM
19
9:00AM-11:00PM
20
9:00AM-9:00PM
21
11:00AM-6:00PM
22
12:00PM-7:00PM
23
9:00AM-11:00PM
24
9:00AM-11:00PM
25
9:00AM-11:00PM
26
9:00AM-11:00PM
27
9:00AM-9:00PM
28
11:00AM-6:00PM
29
12:00PM-7:00PM
30
9:00AM-11:00PM
31
9:00AM-11:00PM
1
9:00AM-11:00PM
2
9:00AM-11:00PM
3
9:00AM-9:00PM
4
11:00AM-6:00PM