JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>

JavaScript

var firstDate = moment();
var secondDate = moment("2018-03-19");
var yearDiff = firstDate.diff(secondDate, "year");
var monthDiff = firstDate.diff(secondDate, "month");
var dayDiff = firstDate.diff(secondDate, "day");
console.log(yearDiff + " Years, " + monthDiff + " Months, " + dayDiff + " Days");