iQ Academy Washington runs on a school year calendar. A one-credit course is designed to take 36 weeks or about 180 hours. As a general guideline, in addition to the time you spend online, you should also count on spending time reading, completing assignments, and studying for tests and exams. Therefore, you may need to spend approximately 180 hours to complete a course worth one high school credit. This time is a guideline and will vary according to course, study habits, etc. You should assume that a half-credit course will take half as much time as a one-credit course.