public static bool ValidateDateFormat(CultureInfo language, object dateFormat, out string defaultFormat)
        {
            DateTimeFormatInfo dateTimeInfo = MailboxRegionalConfiguration.GetDateTimeInfo(language);

            defaultFormat = dateTimeInfo.ShortDatePattern;
            string[] array;
            return(dateFormat != null && dateFormat is string && MailboxRegionalConfiguration.ValidateFormat(dateTimeInfo, (string)dateFormat, 'd', out array));
        }
 public static string GetDefaultTimeFormat(CultureInfo language)
 {
     return(MailboxRegionalConfiguration.GetDateTimeInfo(language).ShortTimePattern);
 }