As long as your timer is connected to your home Wi-Fi net work, and your phone has internet access you can control your timer from anywhere. As for programming scheduled timers, you have an option to up to 3 or 4 active programs depending on your model of timer. When scheduling you have an option of up to for start times in each program that can be set at any times of the day. Then you enter in the runtime for each zone. it will cycle through each zone in that particular program, and will water for its set runtime at each start time.