If you want to get server time to check something in your application. This tips is for C# developer.
Condition: your applications much connect to internet
Check below code!
public static DateTime GetNISTDate() { Random ran = new Random(DateTime.Now.Millisecond); DateTime date = GetDummyDate(); string serverResponse = string.Empty; // Represents the list of NIST servers string[] servers = new string[] { "nist1-ny.ustiming.org", "time-a.nist.gov", "nist1-chi.ustiming.org", "time.nist.gov", "ntp-nist.ldsbc.edu", "nist1-la.ustiming.org" }; // Try each server in random order to avoid blocked requests due to too frequent request for (int i = 0; i < 5; i++) { try { // Open a StreamReader to a random time server StreamReader reader = new StreamReader(new System.Net.Sockets.TcpClient(servers[ran.Next(0, servers.Length)], 13).GetStream()); serverResponse = reader.ReadToEnd(); reader.Close(); // Check to see that the signature is there if (serverResponse.Length > 47 && serverResponse.Substring(38, 9).Equals("UTC(NIST)")) { // Parse the date int jd = int.Parse(serverResponse.Substring(1, 5)); int yr = int.Parse(serverResponse.Substring(7, 2)); int mo = int.Parse(serverResponse.Substring(10, 2)); int dy = int.Parse(serverResponse.Substring(13, 2)); int hr = int.Parse(serverResponse.Substring(16, 2)); int mm = int.Parse(serverResponse.Substring(19, 2)); int sc = int.Parse(serverResponse.Substring(22, 2)); if (jd > 51544) yr += 2000; else yr += 1999; return new DateTime(yr, mo, dy, hr, mm, sc); } } catch { /* Do Nothing...try the next server */ } } return date; }
Any feedback leave your comment, we can discuss about it!
Reference for C++ Developer:
https://learn-tech-tips.blogspot.com/2015/08/get-server-time-in-c-plus-plus.html
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