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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.
April 2018
SundayMondayTuesdayWednesdayThursdayFridaySaturday
1
Open 24 hours on 04/01/2018
2
Open 24 hours on 04/02/2018
3
Open 24 hours on 04/03/2018
4
Open 24 hours on 04/04/2018
5
Open 24 hours on 04/05/2018
6
Open 24 hours on 04/06/2018
7
Open 24 hours on 04/07/2018
8
Open 24 hours on 04/08/2018
9
Open 24 hours on 04/09/2018
10
Open 24 hours on 04/10/2018
11
Open 24 hours on 04/11/2018
12
Open 24 hours on 04/12/2018
13
Open 24 hours on 04/13/2018
14
Open 24 hours on 04/14/2018
15
Open 24 hours on 04/15/2018
16
Open 24 hours on 04/16/2018
17
Open 24 hours on 04/17/2018
18
Open 24 hours on 04/18/2018
19
Open 24 hours on 04/19/2018
20
Open 24 hours on 04/20/2018
21
Open 24 hours on 04/21/2018
22
Open 24 hours on 04/22/2018
23
Open 24 hours on 04/23/2018
24
Open 24 hours on 04/24/2018
25
Open 24 hours on 04/25/2018
26
Open 24 hours on 04/26/2018
27
Open 24 hours on 04/27/2018
28
Open 24 hours on 04/28/2018
29
Open 24 hours on 04/29/2018
30
Open 24 hours on 04/30/2018
1
Open 24 hours on 05/01/2018
2
Open 24 hours on 05/02/2018
3
Open 24 hours on 05/03/2018
4
Open 24 hours on 05/04/2018
5
Open 24 hours on 05/05/2018