Training under 5 hours a day (we have a new baby)

Hello All. Thanks for all the information here. My partner and I wish to become yoga teachers. Our challenge is that we have our son who is 4 months old. We are doing “progressive parenting” and so don’t want to ever be in a class that lasts over 5 hours in a day. During those 5 hours we can have the baby with a nanny or relative - but with breast feeding and bonding, any course that requires over 5 hours in one day won’t work.

Any advice? We would love to do training in India, but we can go anywhere in the world!