Create a COM object with a function that return your timeStamp. Register into your server and create the object and call the method that retrieve the variable that you riquire. Even you can update the date and time of your WS whit this method, to be the same as de server.
"Anyone who has never made a mistake has never tried anything new." A.E
"The important thing is not to stop questioning. Curiosity has its own reason for existing." A.E