Make a program expire using Internet time

[naru]

i want to make my program expire using this script : 

#include <date.au3>
$expdate = Floor(_DateToDayValue("2019", "03", "10")) ;Julian date since (days since noon 4713 BC January 1)
If (Floor(_DateToDayValue(@YEAR, @MON, @MDAY)) > $expdate) Then
     MsgBox(0, "Error", "License has expired")
     ;run activation program
     Exit
EndIf

But it was read current time of pc, if i set my computer time as before "2019", "03", "10", The code is working again.

is there anyway to check the time using internet time ?

[Jos]

Ofcourse, but what do you do when the Internet is not available?

Jos

[naru]

Just now, Jos said:

Ofcourse, but what do you do when the Internet is not available?

Jos

@Jos

If I have a script that works in an Internet explorer, then I need to have internet to work. If that's not an internet then the whole script is also useless for me.