protected function addDateTime( CalendarDateTime $dateTime ) {
    	$this->addLine('BEGIN:VEVENT');
		$this->addLine('UID:' . $this->getUID($dateTime) );
		$this->addLine('DTSTAMP;TZID=' . Calendar::config()->timezone . ':' . $this->getFormatedDateTime());
		$this->addLine('DTSTART;TZID=' . Calendar::config()->timezone . ':' . $this->getFormatedDateTime($dateTime->dbObject('StartDate'), $dateTime->dbObject('StartTime')));
		$this->addLine('DTEND;TZID='   . Calendar::config()->timezone . ':' . $this->getFormatedDateTime($dateTime->dbObject('EndDate'), $dateTime->dbObject('EndTime')));
		$this->addLine('URL:' . Director::absoluteURL($dateTime->ICSLink()));
		$this->addLine('SUMMARY:CHARSET=UTF-8:' . $dateTime->Event()->Title);
		$this->addLine('END:VEVENT');
    }