There is no time limit. You just go through the course as fast or slow as you want, and then finish when you think you have had enough from the course. We have had many students with us for many years, and even some students who come back after having studied our materials ten years ago. They find that there is a lot of depth here and they are continually learning.
Many finish in less than four years but many continue and go through the material a second time. They find they learn even more the second time as there really is a lot of depth to the materials that you keep discovering the longer you are a member, particularly if you engage with the community.
If you do not have time to do your lessons, they will always be available to you as long as you are a subscribing member or lifetime member of the Virtual Art Academy.