[01][0-9]|2[0-3]):(?[0-5][0-9]):(?[0-5][0-9]|60)(?\.[0-9]+)?' . '(Z|(\+|-)(?[01][0-9]|2[0-3]):(?[0-5][0-9]))?'; /** * @inheritDoc */ public function validate($data): bool { return $this->validateRegex($data, '/^' . self::REGEX . '$/i'); } }