(Delphi DLL) 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.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, CkDateTime, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
dt: HCkDateTime;
success: Boolean;
bLocalTime: Boolean;

begin
// 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.
json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'ntp_server','pool.ntp.org');

// Query the NTP server for the current date/time.
dt := CkDateTime_Create();
// Note: The SetFromNtpServer method is available starting in v9.5.0.96 for most Chilkat builds, but not all.
// If the SetFromNtpServer method is not present, contact support@chilkatsoft.com for a hotfix build.
// It should be available in all programming languages/platforms starting in v9.5.0.97
success := CkDateTime_SetFromNtpServer(dt,CkJsonObject__emit(json));
if (success = False) then
  begin
    Memo1.Lines.Add(CkDateTime__lastErrorText(dt));
    Exit;
  end;

// Show the date/time in various formats..
bLocalTime := True;
Memo1.Lines.Add(CkDateTime__getAsTimestamp(dt,bLocalTime));
Memo1.Lines.Add(CkDateTime__getAsRfc822(dt,bLocalTime));
Memo1.Lines.Add(IntToStr(CkDateTime_GetAsUnixTime(dt,bLocalTime)));

// Sample output:

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

CkJsonObject_Dispose(json);
CkDateTime_Dispose(dt);

end;