StopWatch Class
Used to measure elapsed time, with up to millisecond accuracy. A Stopwatch instance can measure elapsed time for one interval (between two specific points in time), or the total of elapsed time across multiple intervals
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.
Namespace: elsystem