No.  The course designed to be self-paced.  Learners can enter and leave the course at any time and the course will track what progress to pick up where they last left off.

The actual online course experience is approximately 1 hour.  There are approximately 8 to 16 hours of additional out of course implementation exercises users can choose to do. Just like the Getting Things Done book or classroom sessions, we've tried to make the course as robust and comprehensive as possible giving users the experience of learning about GTD and implementing their first draft system.