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import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.util.Date;
public class Main {
final private static int DAYTIME_PORT = 13;
public static void main(String args[]) throws IOException {
DatagramSocket socket = new DatagramSocket(DAYTIME_PORT);
while (true) {
byte buffer[] = new byte[256];
DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
socket.receive(packet);
String date = new Date().toString();
buffer = date.getBytes();
// Get response address/port for client from packet
InetAddress address = packet.getAddress();
int port = packet.getPort();
packet = new DatagramPacket(buffer, buffer.length, address, port);
socket.send(packet);
}
}
}
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