//   It is now hard to find an NNTP server that will talk to
//   a member of the public.   An out-of-date list is at:
//      http://ntp.isc.org/bin/view/Servers/StratumTwoTimeServers
//
//   Still, even a refusal to talk tells you that you are in a client/server protocol.
//
//   I failed with 10 -12 servers on Dec 30 2004, then succeeded with rolex.usg.edu



import java.io.*;
import java.net.*;
public class AskTime {

    public static void main(String a[]) throws Exception {
        if (a.length!=1) {
            System.out.println("usage:  java AskTime <systemname> ");
            System.exit(0);
        }

        String machine = a[0];
        final int daytimeport = 13;
        Socket so = new Socket(machine, daytimeport);
        BufferedReader br =
               new BufferedReader( new InputStreamReader( 
					so.getInputStream() ) );
        String time = br.readLine();
        System.out.printf("%s says it is %s %n", machine, time);
    }
}