#include <DateTimeConstants.au3>
GUICreate("Date", 350, 70)
GUICtrlCreateMenuItem("Test", GUICtrlCreateMenu("Test"))
GUICtrlCreateDate("", 20, 15, 200, 20)
$time = GUICtrlCreateLabel(@HOUR & ":" & @MIN & ":" & @SEC, 250, 15, 100, 20, 0x201)
GUISetState()
AdlibEnable("_Time", 1000)
Do
Until GUIGetMsg() = -3
Func _Time()
GUICtrlSetData($time, @HOUR & ":" & @MIN & ":" & @SEC)
EndFunc
Edit: Sorry, i found it: _Timer_SetTimer works!!
#include