Introduction to digital clock
A digital clock is a type of clock that displays the time digitally, i.e. in ciphers, as opposed to an analog clock, where the time is displayed by hands. Digital clocks are often associated with electronics drives, but the “digital” description refers only to the display, not to the drive mechanism (Both analog and digital clocks can be driven either mechanically or electronically, but “clockwork” mechanisms with digital displays are rare).
Construction of digital clock
Digital clocks typically use the 50 or 60 hertz oscillation of AC power or a 32.768kHz crystal oscillator. A more commonly used hour sequence option is 12 hour format (with some indication of AM or PM). Emulations of analog-style faces often use an LCD screen, and these are also sometimes described as “digital”.