I've got competing goals: 1) water while dark, 2) water after my wife and I are awake (rotors move a lot of water, and its loud). 3) avoid shower time. I can get the drip lines done starting at 4am, but if I stack the rotors after them, I'll either wake myself, or ruin my shower. So they start at 7. Now, if I had an IFTTT channel that said "hold irrigation for motion in master bath......." I could start earlier and end earlier. Ain't finishing before sunrise, but I might get closer.