A read-only long integer representing the total number of milliseconds measured by the current instance.

This property represents elapsed time rounded down to the nearest whole millisecond value. For higher precision measurements, use the Elapsed or ElapsedTicks properties.

You can query the properties Elapsed, ElapsedMilliseconds, and ElapsedTicks while the Stopwatch instance is running or stopped. The elapsed time properties steadily increase while the Stopwatch is running; they remain constant when the instance is stopped.

By default, the elapsed time value of a Stopwatch instance equals the total of all measured time intervals. Each call to Start()()()() begins counting at the cumulative elapsed time; each call to Stop()()()() ends the current interval measurement and freezes the cumulative elapsed time value. Use the Reset()()()() method to clear the cumulative elapsed time in an existing Stopwatch instance.