+5  A: 

The System.Diagnostics API contains a pretty subtle source of great confusion: System.Diagnostics 'ticks' are not the same as DateTime or TimeSpan 'ticks'!

If you use StopWatch.ElapsedTicks instead of StopWatch.Elapsed.Ticks, it should work.

The documentation contains more information about this.

Mark Seemann  2009-10-10 06:37:42

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