JavaScript function to create a Date from QlikView or Qlik Sense numerical Date value

dateFromQlikNumber.js

function dateFromQlikNumber(n) {
	var d = new Date(Math.round((n - 25569) * 86400000));
	// since date was created in UTC shift it to the local timezone
	d.setTime(d.getTime() + d.getTimezoneOffset() * 60000);
	return d;
}

I added rounding to avoid inaccuracy caused by Qlik's float numbers..

Hi Ralf, looks like you've got an error on line 2, one extra parentheses. Should be:
var d = new Date(Math.round((n - 25569) * 86400000));

You have an extra ( after Date.

Thanks for this awesome script!

Thanks Speros for pointing this out! Wonder how that came in..