public function startDatetime()
    {
        $date = explode('-', $this->start_date);
        $time = explode(':', $this->start_time);
        $start_datetime = Carbon::create($date[0], $date[1], $date[2], $time[0], $time[1]);

        return $start_datetime;
    }
public function startDatetime()
    {
        $date = explode('-', $this->start_date);
        $time = explode(':', $this->start_time);
        $start_datetime = Carbon::create($date[0], $date[1], $date[2], $time[0], $time[1]);

        return $start_datetime;
    }
public function startDatetime ( ) { $ date = explode ( '-' , $ this -> start_date ) ; $ time = explode ( ':' , $ this -> start_time ) ; $ start_datetime = Carbon :: create ( $ date [ 0 ] , $ date [ 1 ] , $ date [ 2 ] , $ time [ 0 ] , $ time [ 1 ] ) ; return $ start_datetime ; }
Get Carbon start datetime.

@return \Carbon\Carbon
Get Carbon start datetime .