Intenet net time ในแบบ Text

 https://nist.time.gov/actualtime.cgi?lzbc=siqm9b

code เป็นแบบนี้

public static DateTime GetNistTime()

{

    DateTime dateTime = DateTime.MinValue;



    HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://nist.time.gov/actualtime.cgi?lzbc=siqm9b");

    request.Method = "GET";

    request.Accept = "text/html, application/xhtml+xml, */*";

    request.UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)";

    request.ContentType = "application/x-www-form-urlencoded";

    request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore); //No caching

    HttpWebResponse response = (HttpWebResponse)request.GetResponse();

    if (response.StatusCode == HttpStatusCode.OK)

    {

        StreamReader stream = new StreamReader(response.GetResponseStream());

        string html = stream.ReadToEnd();//<timestamp time=\"1395772696469995\" delay=\"1395772696469995\"/>

        string time = Regex.Match(html, @"(?<=\btime="")[^""]*").Value;

        double milliseconds = Convert.ToInt64(time) / 1000.0;

        dateTime = new DateTime(1970, 1, 1).AddMilliseconds(milliseconds).ToLocalTime();

    }



    return dateTime;

}