Library Hours

• Library Facility Hours
  
  
  • Engineering and Science Library
  • Hunt Library
  • Mellon Institute Library
  • Posner Center research collection & meeting venue
  • Qatar Library
    
    
    • Exception Hours detailed list of E&S, Hunt and MI library hours
      
      
      • Libraries are closed on university holidays.
      • Library hours are extended before & during exams.
      • Library hours are curtailed during holiday weekends & breaks.
      • Download a one-page bookmark with detailed hours through Commencement.
      
      
      
• Point-of Service Hours library & other facility services
  
  
  
• Other Libraries at Carnegie Mellon
  
  
• Hunt Botanical Library research collection
• Software Engineeering Library

 

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Library Facility Hours

Engineering and Science Library - Exception Hrs (holidays, finals, breaks)

Monday-Thursday -- 8 a.m.-midnight
Friday -- 8 a.m.-9 p.m.
Saturday -- 10 a.m.-9 p.m.
Sunday -- noon-midnight

Hunt Library - Exception Hrs (holidays, finals, breaks)

Monday-Thursday -- 8 a.m.-3 a.m.
Friday -- 8 a.m.-9 p.m.
Saturday -- 10 a.m.-9 p.m.
Sunday -- noon-3 a.m.

Mellon Institute Library - Exception Hrs (holidays, finals, breaks)

Monday-Friday 8:30 a.m.-5 p.m.

Posner Center

Monday-Friday -- 1 p.m.-4 p.m. hours may be extended or curtailed for special events

Qatar Library

Sunday & Tuesday -- 8 a.m.-9 p.m. [1 am - 2 pm, Pittsburgh time]
Monday & Wednesday -- 8 a.m. - 6:30 p.m. [1 am - 11:30 am, Pittsburgh time]
Thursday -- 8 a.m. - 5 p.m. [1 am - 10 am, Pittsburgh time]
Friday & Saturday -- CLOSED

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Point-of-Service Hours

• Acquisitions (HL1)
  • Monday-Friday -- 8 a.m. - 5 p.m.
    
    
• Architecture Archives (HL4)
  • Monday-Friday by appointment.
    
    
• Arts Reference (HL4), artsref@andrew.cmu.edu
  • Monday-Thursday -- 9 a.m. - 8 p.m.
  • Friday -- 9 a.m. - 5 p.m.
  • Sunday -- 5 p.m. - 8 p.m.
    
    
• Audio Collection and Listening (HL4)
  • Monday - Thursday -- 9 a.m. - midnight
  • Friday -- 9 a.m.- 6 p.m.
  • Saturday -- noon - 6 p.m.
  • Sunday -- 1 p.m. - midnight
    
    
• Business Services (HL1)
  • Monday-Friday -- 8 a.m. - 5 p.m.
    
    
• Cataloging (HL1)
  • Monday-Friday -- 8 a.m. - 5 p.m.
    
    
• Circulation + ILL pickup
  • Open during library hours.
    • E&S Library: 412-268-7217
    • Hunt Library: 412-268-2444
    • MI Library: 412-268-3171
      
      
• Computing Services cluster (HL Basement)
  • Open during Hunt Library hours.
    
    
• Engineering & Science Library Reference (WeH4), sciref@andrew.cmu.edu
• Monday-Thursday -- 9 a.m. - 8 p.m.
• Friday -- 9 a.m. - 5 p.m.
• Saturday -- 1 p.m. - 5 p.m.
• Sunday -- 5 p.m. - 8 p.m.
  
  
• Fine & Rare Book Room (HL4)
  • Monday-Friday by appointment.
    
    
• Hunt Botanical Library (HL5)
  • Monday-Friday -- 1 p.m. - 5 p.m.
    
    
• Hunt Institute for Botanical Documentation (HL5)
  • Monday-Friday -- 9 a.m. - noon, and 1 p.m. - 5 p.m.
    Gallery is open Sundays from 1-4 p.m. during exhibitions. Call 412-268-2434 for info.
    
    
• Hunt Library Reference (HL1), huntref@andrew.cmu.edu
  • Monday-Thursday -- 9 a.m. - 8 p.m.
  • Friday -- 9 a.m. - 5 p.m.
  • Saturday -- 1 p.m. - 5 p.m.
  • Sunday -- 1 p.m. - 5 p.m.
    
    
• Interlibrary Loan
  
  • E&S Library (WEH 4)
    Monday-Friday -- 9 a.m. - 5 p.m.
    Circulation staff will help you at other hours
    
  • Hunt Library (HL 3)
    Monday-Friday -- 9 a.m. - 5 p.m.
    Periodicals staff will help you at other hours
    
  • Mellon Institute Library (MI 4)
    Monday-Friday -- 9 a.m. - 5 p.m.
    
    
• Maggie Murph Cafe (HL1)
  • Monday-Thursday -- 8 a.m.-1 a.m.
  • Friday -- 8 a.m.-8 p.m.
  • Saturday -- 10 a.m.-8 p.m.
  • Sunday -- noon-1 a.m.
    
    
• Mellon Institute Library Reference (MI4), sciref@andrew.cmu.edu
  • Monday-Friday -- 9 a.m. - 5 p.m.
    
    
• Periodicals (HL3)
  • Open during Hunt Library hours.
    
    
• Posner Center
  • Monday-Friday -- 1 p.m. - 4 p.m.
    To schedule a meeting, see Using Posner Center Facilities.
    
    
• Visual Resources Collection (HL4)
  • Monday - Thursday -- 9 a.m. - midnight
  • Friday -- 9 a.m.- 6 p.m.
  • Saturday -- noon - 6 p.m.
  • Sunday -- 1 p.m. - midnight
  
  
• University Archives (HL2)
  • Monday, Wednesday, Friday -- 1 p.m. - 5 p.m.
  • Tuesday, Thursday -- 9 a.m. - 1 p.m.
    
    
• Video Collection and Viewing (HL Basement)
  • Monday-Thursday -- 8 a.m. - 11 p.m.
  • Friday -- 8 a.m. - 5 p.m.
  • Saturday -- noon - 5 p.m.
  • Sunday -- noon - 11 p.m.

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Other Libraries at Carnegie Mellon