; Variable Declaration
Global $TotalDurationMS

      $Var             = "Ici, se trouvent les durées => Duration: 10:10:10.101 ici il y en à une deuxième => Duration: 01:01:01.010 fin de variable"

While 1
	  Sleep(1)
      $result          = StringInStr( $Var, "Duration:", 0, 1)
	  If $result       ='0' Then ExitLoop
      ; ========================================================
      $Duration        = StringMid( $Var, $result+10,12)
      $Delete          = StringMid( $Var, 1, $result+21)
      $Var             = stringreplace($Var, $Delete,"")
	  ; ========================================================
	  $H               = StringMid( $Duration, 1,2)*1000*60*60
	  $M               = StringMid( $Duration, 4,2)*1000*60
	  $S               = StringMid( $Duration, 7,2)*1000
	  $MS              = StringMid( $Duration,10,3)
	  $TotalMS         = ($H + $M + $S + $MS)
	  $TotalDurationMS = $TotalDurationMS + $TotalMS
	  ; ========================================================
Wend
MsgBox(0, "Durée Totale en millisecondes:", $TotalDurationMS)               

$TotalDurationMS       = StringFormat('%.3f', $TotalDurationMS / 1000)
$TotalSec              = StringSplit($TotalDurationMS, ".")
$TotalSec              = $TotalSec[1]
$TotalMSec             = StringSplit($TotalDurationMS, ".")
$TotalMSec             = $TotalMSec[2]

$H                     = Int ($TotalSec / 3600)
$M                     = Int(($TotalSec - $H * 3600) / 60)
$S                     =      $TotalSec - $H * 3600 - $M * 60
$MS                    =      $TotalMSec

$TotalDuration = StringFormat('%02d:%02d:%02d:%03d', $H, $M, $S, $MS)
MsgBox(0, "Durée Totale en format original:", $TotalDuration)

$TotalDuration = StringFormat('%02d heures %02d minutes %02d secondes %03d millisecondes', $H, $M, $S, $MS)
MsgBox(0, "Durée Totale en format personalisé:", $TotalDuration)