System.Net.HttpWebRequest.StringToDate C# (CSharp) Method

        private static DateTime StringToDate(String S)
        {
            DateTime dtOut;
            if (HttpDateParse.ParseHttpDate(S, out dtOut))
            {
                return dtOut;
            }
            else
            {
                throw new ProtocolViolationException(SR.net_baddate);
            }
        }