Hi ewheeler3,

Most of the courses on Khan Academy are around about the same amount of time to complete as a regular class at school. If you begin the school year by doing 40-50 minutes of AP History a day, five days a week, then you should be finished with it by the end of the school year (depending on how quick of a learner you are, you may get done sooner).

Hope this helps! Please let me know if you have any further questions.

Allison