Returns the difference in time from a previous call to TimerInit().
TimerDiff ( handle )
Some processors are known to cause the function to return incorrect result.
#include <MsgBoxConstants.au3>
Local $hTimer= TimerInit (); Begin the timer and store the handle in a variable.
Sleep (3000); Sleep for 3 seconds.
Local $fDiff= TimerDiff ($hTimer); Find the difference in time from the previous call of TimerInit. The variable we stored the TimerInit handle is passed as the "handle" to TimerDiff.
MsgBox ($MB_SYSTEMMODAL,"Time Difference",$fDiff)