A digital clock is a timekeeping device that displays the time using numerical digits instead of traditional hands on a dial. It typically shows hours and minutes, and many models also include seconds, date, and alarm functions. Digital clocks can be powered by batteries or electricity and are commonly found in homes, offices, and public spaces. These clocks use electronic components to keep time accurately, often relying on quartz crystals for precision. Some digital clocks feature additional functions, such as backlighting for visibility in the dark or the ability to set multiple alarms. They are popular for their ease of reading and modern design.