Get international Standard Time from the network

When public static DateTime datastandardtime ()//is used, the static keyword is deleted and can be used in other locations? 2010-11-24
{//Return to international Standard Time
Use only the IP address of the time server, not using the domain name
string[,] Time server =new string [14,2];
Int[] Search Order =new int []{3,2,4,8,9,6,11,5,10,0,1,7,12};
Time server [0,0]= "time-a.nist.gov";
Time server [0,1]= "129.6.15.28";
Time server [1,0]= "time-b.nist.gov";
Time server [1,1]= "129.6.15.29";
Time server [2,0]= "time-a.timefreq.bldrdoc.gov";
Time server [2,1]= "132.163.4.101";
Time server [3,0]= "time-b.timefreq.bldrdoc.gov";
Time server [3,1]= "132.163.4.102";
Time server [4,0]= "time-c.timefreq.bldrdoc.gov";
Time server [4,1]= "132.163.4.103";
Time server [5,0]= "utcnist.colorado.edu";
Time server [5,1]= "128.138.140.44";
Time server [6,0]= "time.nist.gov";
Time server [6,1]= "192.43.244.18";
Time server [7,0]= "time-nw.nist.gov";
Time server [7,1]= "131.107.1.10";
Time server [8,0]= "nist1.symmetricom.com";
Time server [8,1]= "69.25.96.13";
Time server [9,0]= "nist1-dc.glassey.com";
Time server [9,1]= "216.200.93.8";
Time server [10,0]= "nist1-ny.glassey.com";
Time server [10,1]= "208.184.49.9";
Time server [11,0]= "nist1-sj.glassey.com";
Time server [11,1]= "207.126.98.204";
Time server [12,0]= "nist1.aol-ca.truetime.com";
Time server [12,1]= "207.200.81.113";
Time server [13,0]= "nist1.aol-va.truetime.com";
Time server [13,1]= "64.236.96.53";
int portnum=13;
String HostName;
byte[] Bytes=new byte [1024];
int bytesread=0;
System.Net.Sockets. TcpClient client=new System.Net.Sockets.TcpClient ();
for (int i=0;i<13;i++)
{
Hostname= time Server [search order [i],1];
Try
{
Client. Connect (Hostname,portnum);
System.Net. Sockets. NetworkStream ns=client. GetStream ();
Bytesread=ns. Read (bytes,0,bytes. Length);
Client. Close ();
Break
}
catch (System.Exception)
{
}
}
char[] Sp=new char [1];
Sp[0]= ';
System.DateTime dt=new DateTime ();
String str1;
Str1=system.text. Encoding. Ascii. GetString (Bytes,0,bytesread);

String[] s;
S=str1. Split (SP);
Dt=system.datetime. Parse (s[1]+ "" +s[2])/Get Standard Time
Dt=dt. AddHours (8)//Get Beijing time * *
return DT;

}

Get time from 14 servers in turn, as long as there is a response. The search order is set according to how quickly we get here, and may vary slightly.

Reproduced from: http://www.360doc.com/content/10/1124/12/2482712_71976347.shtml