what is a stopwatch for
For other uses, see StopWatch (Campaign) . Stopwatch animation for 59 seconds and its reading (on fast computers it takes less than 59 seconds.). A stopwatch is a handheld timepiece designed to measure the amount of time elapsed from a particular time when it is activated to the time when the piece is deactivated.
The Stopwatch measures elapsed time by counting timer ticks in the underlying timer mechanism. If the installed hardware and operating system support a high-resolution performance counter, then the Stopwatch class uses that counter to measure elapsed time.