Library Hours

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Check hours for Butler Library Service Hours

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.
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August 2014 : Butler Library 24-Hour Reading Rooms

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Sunday Monday Tuesday Wednesday Thursday Friday Saturday
         
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9:00am-9:00pm
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11:00am-6:00pm
3
 
Noon-7:00pm
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9:00am-11:00pm
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9:00am-11:00pm
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9:00am-11:00pm
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9:00am-11:00pm
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9:00am-9:00pm
9
 
11:00am-6:00pm
10
 
Noon-7:00pm
11
 
9:00am-11:00pm
12
 
9:00am-11:00pm
13
 
9:00am-11:00pm
14
 
9:00am-11:00pm
15
 
9:00am-7:00pm
16
 
11:00am-6:00pm
17
 
Closed
18
 
9:00am-9:00pm
19
 
9:00am-9:00pm
20
 
9:00am-9:00pm
21
 
9:00am-9:00pm
22
 
9:00am-7:00pm
23
 
11:00am-6:00pm
24
 
Closed
25
 
9:00am-9:00pm
26
 
9:00am-9:00pm
27
 
9:00am-9:00pm
28
 
9:00am-9:00pm
29
 
9:00am-7:00pm
30
 
11:00am-6:00pm
31
 
Noon-7:00pm
           
 
   
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