code: public String getRawTimestamp() throws IOException {
  
          final NetTimeConfiguration config = this.getNetTimeConfiguration();
  
          String address = config.getTimeServerAddress();
          int port = config.getTimeServerPort();
          int timeout = config.getConnectionTimeout();
  
          return getDaytimeReply(address, port, timeout);
  
      }
docs: /*[deutsch]
  <p>Versucht, den Original-Server-Zeitstempel zu lesen. </p>
  
  @return  unparsed server reply
  @throws  IOException if connection fails
  @since   2.1