public function date($date, $format = null)
    {
        if ($this->isEmptyDate($date)) {
            return '';
        }

        $isLocalizerFormat = in_array($format, [Localizer::SHORT, Localizer::LONG, Localizer::VERBOSE]);

        if ($format && !$isLocalizerFormat) {
            return $this->toDateTime($date)->format($format);
        }

        if (!$this->localizer) {
            return $this->toDateTime($date)->format('Y-m-d');
        }

        return $this->localizer->date($date, $format ?: Localizer::SHORT);
    }