The Vizia + 24-Hour Programmable Indoor Timer with Astronomical Clock helps lower your electrical costs without sacrificing convenience. Replacing standard switches with timer switches can reduce energy consumption, improve security and save you money. Allowing up to 50-timer event settings per day, this timer switch can be programmed weekdays, weekends, all days or any combination of days. It (Vizia + 24-hour Timer) also meets all applicable UL, CSA and FCC requirements and comes with 3 changeable face plates in white, ivory and light almond colors to complement your decor.