With the Woods 50029WD Indoor 7-Day Astronomical Timer you may not even have to use the timer. Its amazing sun tracking technology can automatically turn your electronics on or off at sunset or sunrise. It will automatically adjust to daylight savings or those long summer days or winter nights. However, the timer itself is extremely versatile with up to 7 daily settings that repeat weekly. Each day can be different or weekdays and weekends can be programmed differently. The timer can also act as an innovative security feature. Turning the lights on and off while you’re gone will make it appear that the house is occupied while you’re away for extended periods of time.