It actually didnt take that long. I went on a course 11-5 But we had an hour for lunch. It went like this and at each stage it was all broken down for us and we learned along the way about techniques,dyes,yarns,and all sorts
Soaking yarn
trying out dyeing same colour but different shades (might not be the right word!)
we did 3 colours
mixing colours together/amounts and stuff
Then we dyed 2 small skeins and 1 large of our own choice of technique but i chose to hand paint them all
Doesnt take long at all its just the drying