Cake\Chronos\Traits\ModifierTrait::nthOfMonth PHP Метод

    public function nthOfMonth($nth, $dayOfWeek)
    {
        $dt = $this->copy()->firstOfMonth();
        $check = $dt->format('Y-m');
        $dt = $dt->modify("+{$nth} " . static::$days[$dayOfWeek]);
        return $dt->format('Y-m') === $check ? $dt : false;
    }