By definition, the 75 hour Social Studies course requires you to spend 75 hours on the course, and the 50 hour Social Studies course requires you to spend 50 hours.
If you have gone through the learning resources much faster than the displayed time estimate for each lesson, you are likely to see the following error when trying to request a course certificate:
HOW TO FIX IT?
Tracked learning time is based on your class attendance and time spent on lessons. Therefore, you have two options to get more tracked (accredited) time. You can choose one, or do both.