Click on schedule. Scroll down to you come to a smart zone that will water and click on it. Then click on preferences for that zone. There is a new feature called mode where you can select different watering "themes". At the bottom of the screen, it estimates frequency and time. For my St. Augustine grass in the front yard, I chose regular and it says that it will water for 39 minutes every 4.3 days. It actually waters a bit more frequently than that and for a bit longer. That is fine for me as my yard soil isn't in the best condition and the front yard gets a lot of sun/heat.