Find out how long MBA programs last and what you will learn. Hours in the Classroom. The amount of time you spend in the classroom will depend on the type of program in which you enroll. If you choose a traditional, full-time, 2-year MBA program you may average as little as two or three hours a day in the classroom. If you choose a more intensive, accelerated MBA program, you may spend as many as six hours a day in class. Part-time MBA programs generally require more limited attendance.