Time is a measure of the duration between events, and it is commonly quantified in units called seconds. One second is defined as the duration of 9,192,631,770 cycles of radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom. This precise definition helps ensure consistency in timekeeping across the world. In everyday life, seconds are used to track short intervals, such as the time it takes to blink or to complete a quick task. Clocks and timers often display time in seconds, making it easy to measure and manage our daily activities efficiently.