protected function dateToTimeZone($stringDate)
    {
        $date = new DateTime($stringDate);
        $date->setTimezone(new DateTimeZone($this->timeZone));
        return $date;
    }
protected function dateToTimeZone($stringDate)
    {
        $date = new DateTime($stringDate);
        $date->setTimezone(new DateTimeZone($this->timeZone));
        return $date;
    }
protected function dateToTimeZone ( $ stringDate ) { $ date = new DateTime ( $ stringDate ) ; $ date -> setTimezone ( new DateTimeZone ( $ this -> timeZone ) ) ; return $ date ; }
Transform a date string into a DateTime object using GMT timezone

@param $dateString a date string that can be used as a parameter for the DateTime constructor

@return \DateTime
Transform a date string into a DateTime object using GMT timezone