src/ZonedDateTime.php
public function plusMonths(int $months) : ZonedDateTime
    {
        return ZonedDateTime::of($this->localDateTime->plusMonths($months), $this->timeZone);
    }
public function plusMonths(int $months) : ZonedDateTime
    {
        return ZonedDateTime::of($this->localDateTime->plusMonths($months), $this->timeZone);
    }
public function plusMonths ( int $ months ) : ZonedDateTime { return ZonedDateTime :: of ( $ this -> localDateTime -> plusMonths ( $ months ) , $ this -> timeZone ) ; }
Returns a copy of this ZonedDateTime with the specified period in months added.

@param int $months

@return ZonedDateTime
Returns a copy of this ZonedDateTime with the specified period in months added .