<html>
<body>
<h2>JavaScript Date.now()</h2>
<p>Date.now() is new in ECMAScript 5 (2009):</p>
<p id="demo1"></p>
<p id="demo2"></p>
<script>
document.getElementById("demo1").innerHTML = Date.now();
var d = new Date();
document.getElementById("demo2").innerHTML = d.getTime();
</script>
</body>
</html>