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.

Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  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.
    CkJsonObject json = new CkJsonObject();
    json.UpdateString("ntp_server","pool.ntp.org");

    //  Query the NTP server for the current date/time.
    CkDateTime dt = new CkDateTime();
    success = dt.SetFromNtpServer(json.emit());
    if (success == false) {
        System.out.println(dt.lastErrorText());
        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
  }
}