You can check the length of times the controller has ran using the following steps. Please note that this will show the length of times that the controller sent power to activate a valve and does not necessarily indicate the length of time water was being used.
1.) Turn the dial to the advanced menu position
2.) Use the up/down buttons to navigate until the screen says "REVIEW" then press next
3.) Use the up/down buttons to navigate until the screen says "RUNTIME" then press next
4.) The screen will allow you to see run times for each zone by day of the week.
On this screen you can use the up/down buttons to cycle through days of the week. The next button will scroll through zones. The back button will exit this menu.