import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import java.net.UnknownHostException;
public class MainClass {
public static void main(String[] args) {
String hostname = "time.nist.gov";
try {
Socket theSocket = new Socket(hostname, 13);
InputStream timeStream = theSocket.getInputStream();
StringBuffer time = new StringBuffer();
int c;
while ((c = timeStream.read()) != -1)
time.append((char) c);
String timeString = time.toString().trim();
System.out.println("It is " + timeString + " at " + hostname);
} // end try
catch (UnknownHostException ex) {
System.err.println(ex);
} catch (IOException ex) {
System.err.println(ex);
}
}
}