class Date

class Date extends NumericDate {
    use FieldAPIHandlerTrait;
    
    /**
     * Determines if the timezone offset is calculated.
     *
     * @var bool
     */
    protected $calculateOffset = TRUE;
    
    /**
     * {@inheritdoc}
     */
    public function __construct(array $configuration, $plugin_id, $plugin_definition, RouteMatchInterface $route_match, DateFormatterInterface $date_formatter, ?TimeInterface $time = NULL) {
        if (!$time) {
            @trigger_error('Calling ' . __METHOD__ . ' without the $time argument is deprecated in drupal:10.3.0 and it will be required in drupal:11.0.0. See https://www.drupal.org/node/3395991', E_USER_DEPRECATED);
            $time = \Drupal::service('datetime.time');
        }
        parent::__construct($configuration, $plugin_id, $plugin_definition, $route_match, $date_formatter, $time);
        $definition = $this->getFieldStorageDefinition();
        if ($definition->getSetting('datetime_type') === DateTimeItem::DATETIME_TYPE_DATE) {
            // Timezone offset calculation is not applicable to dates that are stored
            // as date-only.
            $this->calculateOffset = FALSE;
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDateField() {
        // Use string date storage/formatting since datetime fields are stored as
        // strings rather than UNIX timestamps.
        return $this->query
            ->getDateField("{$this->tableAlias}.{$this->realField}", TRUE, $this->calculateOffset);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDateFormat($format) {
        // Pass in the string-field option.
        return $this->query
            ->getDateFormat($this->getDateField(), $format, TRUE);
    }

}