Timer

A timer is a kind of clock for measuring time intervals. A timer which counts upwards from zero for measuring time is often called a stopwatch. A device which counts down from a specified time interval is more usually called a timer. A simple example is an hourglass. Some timers sound an audible alarm that the time is up. Time switches, timing mechanisms which activate a switch, are sometimes called "timers".

Timer Media

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  A Farberware brand minute timer, commonly used in kitchens for keeping track of cooking times.

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  An electromechanical timer

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  A simple digital timer. The internal components—including the circuit board with control chip and LED display, a battery, and a buzzer—are visible.