JSFiddle - React, Tailwind, and code Playground

JavaScript

var udate="2011-08-19 11:49:01.0 IST";
var configDate=new Date(udate);

var oneDay = 24*60*60*1000; // hours*minutes*seconds*milliseconds
var firstDate = new Date(); // Todays date
var secondDate = new Date(udate);

var diffDays = Math.abs((firstDate.getTime() - secondDate.getTime())/(oneDay));

alert(diffDays );