Cake\Chronos\Traits\ModifierTrait::nthOfQuarter PHP Method

    public function nthOfQuarter($nth, $dayOfWeek)
    {
        $dt = $this->copy()->day(1)->month($this->quarter * ChronosInterface::MONTHS_PER_QUARTER);
        $lastMonth = $dt->month;
        $year = $dt->year;
        $dt = $dt->firstOfQuarter()->modify("+{$nth}" . static::$days[$dayOfWeek]);
        return $lastMonth < $dt->month || $year !== $dt->year ? false : $dt;
    }