What does a clock do?

A clock is a device used to measure, keep, and display time. Clocks can be analog or digital, and they function by counting and displaying the passage of seconds, minutes, and hours. They are essential for organizing daily activities, scheduling, and ensuring punctuality. Clocks come in many forms, including wall clocks, wristwatches, and digital displays, and are found in nearly every home, office, and public place.