DateTime.ParseExact(myDateString, "yyyyMMdd", CultureInfo.InvariantCulture, DateTimeStyles.None);
DateTime.ParseExact(myDateString, "yyyyMMdd", CultureInfo.InvariantCulture, DateTimeStyles.None);
DateTime.ParseExact(myDateString, "yyyyMMdd", CultureInfo.InvariantCulture, DateTimeStyles.None);