Java

Query NTP Server for Current Date/Time

Demonstrates how to query an NTP server to get the current date/time.

Note: This feature was added in Chilkat v9.5.0.96.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.DateTime;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        // Specify the NTP server domain.
        // Information is passed in a JSON object to allow for any unanticipated future optional information that might need to be provided.
        JsonObject json = new JsonObject();
        json.updateString("ntp_server", "pool.ntp.org");

        // Query the NTP server for the current date/time.
        DateTime dt = new DateTime();
        try {
            dt.setFromNtpServer(json.emit());
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Show the date/time in various formats..
        boolean bLocalTime = true;
        System.out.println(dt.getAsTimestamp(bLocalTime));
        System.out.println(dt.getAsRfc822(bLocalTime));
        System.out.println(dt.getAsUnixTime(bLocalTime));

        // Sample output:

        // 2023-10-31T09:43:27-05:00
        // Tue, 31 Oct 2023 09:43:27 -0500
        // 1698745407
    }
}