Mains operated LCD alarm clock Autoset technology Green 0.8 LED display Alarm with snooze This mains powered LCD alarm clock features Autoset Technology. Acctim Autoset Technology sets the correct time & date when it gets power. So when theres a power cut the seasons change or theres a leap year youll always get the right time on your clock. With a specially designed microchip the clock never loses the time. The microchip is fused with the time date season changes & leap years during the manufacturing process. This is especially handy if youre situated in a hilly area behind thick walls in a basement or anywhere where theres a problem getting the MSF signal from Cumbria.