<html>
<body>
<p id="demo">Click the button to display the UTC time.</p>
<button onclick="myFunction()">Try it</button>
<script>
function addZero(i)
{
if (i<10)
{
i="0" + i;
}
return i;
}
function myFunction()
{
var d=new Date();
var x=document.getElementById("demo");
var h=addZero(d.getUTCHours());
var m=addZero(d.getUTCMinutes());
var s=addZero(d.getUTCSeconds());
x.innerHTML=h + ":" + m + ":" + s;
}
</script>
</body>
</html>