That’s great that you are interested in getting certified in Pilates. All modules are taught on the weekend, so this should fit well with your schedule. We are a teacher training studio for Balanced Body, and offer courses in Mat, Reformer and full Apparatus.
We also offer a program at Center of Balance called "Practice Sangha" which is a way to do your observation, self-practice and practice teaching hours at our studio. For $100 per month, you can do unlimited hours, based on the studio's schedule, Monday through Saturday. We have morning hours available on Saturday at Center of Balance, so you would be able to do Practice Sangha on Saturdays if that is the only day you can participate.