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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December 2014 : Butler Library 24-Hour Reading Rooms

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Final Exams End
Midnight-7:00pm
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Intersession
Closed
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Intersesssion
Closed
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Intersession
9:00am-5:00pm
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Intersession
9:00am-5:00pm
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9:00am-5:00pm
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University Holiday
Closed
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University Holiday
Closed
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Closed
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Closed
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9:00am-5:00pm
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9:00am-5:00pm
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9:00am-5:00pm
     
 
 
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