test Date creation time zone

JavaScript

var date = new Date("2017-04-24");
var nbJourAvant = 12;
'var mtnt = new  Date();
'mtnt.setDate(mtnt.getDate() + nbJourAvant);
var mtnt.setDate(new Date());

if (date > mtnt) {
	alert('date is ' + date + ' -> NOK');
} else {
	alert('date is ' + date + ' -> OK');
}