protected function getDateExceptionMessage($details)
    {
        $errors = "Date/time problem: Details: ";
        if (is_array($details['errors']) && $details['error_count'] > 0) {
            foreach ($details['errors'] as $error) {
                $errors .= $error . " ";
            }
        } elseif (is_array($details['warnings'])) {
            foreach ($details['warnings'] as $warning) {
                $errors .= $warning . " ";
            }
        }
        return $errors;
    }