getting Date from the internet with delphi

Does your Delphi include the NOW command?

var
  today : TDateTime;
begin
  today := Now;
  ShowMessage('today has date = '+DateToStr(today));
  ShowMessage('today has time = '+TimeToStr(today));
end;

Got this from this link:  http://www.delphibasics.co.uk/RTL.asp?Name=Now

Yes it includes this commanf. HowEver I noticed that the time extracted in this way is given by internal clock of computer.
as a matter of fact  I need to extract the date time from outSide!!

Is your computer connected to a network?  If so, then a regional/language setting would force the PC to have the network time.

There are plenty of internet sites with APIs that will provide the time and other data.
Example:

http://worldclockapi.com/api/json/est/now

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returned this JSON:

{"$id":"1","currentDateTime":"2018-10-13T06:19-04:00","utcOffset":"-04:00:00","isDayLightSavingsTime":true,"dayOfTheWeek":"Saturday","timeZoneName":"Eastern Standard Time","currentFileTime":131838851791438541,"ordinalDate":"2018-286","serviceResponse":null}

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Please understand my need and suggest some simple and direct solution!
I published a desktop application that loads some database from a server. I wanted the application to stop working when reaching a particular date. Some users managed to keep the application work by changing the date gived by the PC. So I thought I should force the app to extract date from the internet. Ideally I would want to do that via my server since it is connected to my app...

Thank you for your answer

Why not sync your comuter clock to the internet, then all programs have the right time.

NTP is the protocol that does this, and there are NTP client/servers for almost any plantform..

I just assumed that your computer has its clock synchronized with the outside world. Most computers today use an external link setting to keep their computer synchronized with the outside world.

But you did not specify the reason you did not want to use the inside clock. Now I understand.

However, could you update your answer to point to what worked for you, as the answer you picked says:

If you already have a server/web site, why not make a call to your server?

That is not exactly an answer it is something you said yourself.
Can you also please pick aikimark other answer above that  that shows the code?
That way when the database is searched for the answer, the actual answer also shows up?
Thanks.