ParseDateTime()

private DateTime ParseDateTime()
        {
            try
            {
                if (m_Value is DateTime)
                    return (DateTime)m_Value;
                else if (m_Value is TimeSpan)
                {
                    TimeSpan ts = (TimeSpan)m_Value;
                    return new DateTime(ts.Ticks);
                }
                return Convert.ToDateTime(m_Value);
            }
            catch (Exception ex)
            {
                // this is the format exception - we will test
                // one of most common date representations - [YY]YYMMDD
                string strText = m_Value.ToString();

                try
                {
                    return DateTime.ParseExact(
                        strText,
                        new string[] {
                            "MM/dd/yy",
                            "MM/dd/yyyy",
                            "yyyyMMdd",
                            "yyMMdd",
                            "yyyy-MM-dd",
                            "yyyy-MM-ddTHH:mm:ss",
                            "HHmm",
                            "HHmmss",
                            "HHmmssfff",
                            "HH:mm",
                            "HH:mm:ss",
                            "HH:mm:ss:fff",
                            "HH:mm:ss.fff",
                            "MMM dd HH:mm",
                            "MMM dd yyyy"
                            },
                        CultureInfo.InvariantCulture,
                        DateTimeStyles.None
                        );
                }
                catch
                {
                    throw ex;   // the format was not confirmed - rethrow original exception
                }
            }
        }