How much TV time or IPAD time do you limit to your toddler? How much is too much?

Moderation is the key. Parents have to step in to control the time for ipad. I only offer ipad/smart phone when necessary e.g. fussing in long car journey. Nothing beat hands-on learning through real experiences and interactive learning. Ipad is a form of passive learning and long term usage will detriment kid's attention span. Also, high chance kids will develop myopia if use ipad for long term. I would say maximum 30mins-1hour for screen time.