hi @ramazan,
this was a good hint, I am trying this code now:
var time_start_msec : int = 0
var time_current_msec : int = 0
func _ready():
time_start_msec = OS.get_ticks_msec()
func _process( _delta ):
time_current_msec = OS.get_ticks_msec() - time_start_msec
Thanks again
Mike