As per your request below I am providing you the details for Part time MBA minimum hours to complete course are:

Part-time (not attending school): 13 hours per week (at least 7 hours employment, 6 hours of training) averaged over 1, 2 or 4 week cycles

School-based apprentice and trainee, and part-time (attending school): 13 hours per week (at least 7 hours of employment and 6 hours training) averaged over 3 periods of 4 months in each year of the program unless workplace based

Fully workplace based part-time and school-based apprenticeships and traineeships: 13 hours per week including release for structured training

List of schools in USA for doing part time MBA:

University of California—Berkeley (Haas)
Berkeley, CA

University of Chicago (Booth)
Chicago, IL

Northwestern University (Kellogg)
Evanston, IL

University of California—Los Angeles (Anderson)
Los Angeles, CA

University of Michigan—Ann Arbor (Ross)
Ann Arbor, MI

Indiana University (Kelley)
Bloomington, IN

University of Texas—Austin (McCombs)
Austin, TX

Carnegie Mellon University (Tepper)
Pittsburgh, PA

Ohio State University (Fisher)
Columbus, OH

New York University (Stern)
New York, NY

University of Minnesota—Twin Cities (Carlson)
Minneapolis, MN

Georgetown University (McDonough)
Washington, DC

Emory University (Goizueta)
Atlanta, GA

University of Washington (Foster)
Seattle, WA

University of Southern California (Marshall)
Los Angeles, CA

Temple University (Fox)
Philadelphia, PA

University of Massachusetts—Amherst (Isenberg)
Amherst, MA

Virginia Tech (Pamplin)
Blacksburg, VA

University of Maryland—College Park (Smith)
College Park, MD

Wake Forest University
Winston-Salem, NC