Clocks and timekeeping are tools used to measure time. clocks are often used to display the current time and to sound an alarm at preset intervals indicating a specific time. timers are often used to measure the duration of a specific activity, such as an athlete's game or the time it takes to cook food. both clocks and timers can be manufactured using mechanical, electronic or digital technology. they are widely used in daily life, including home, school, office, sports field and factory and so

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