I'd been looking for some way to get server date/time without using any server side script (such as ASP, PHP, etc).

I found this and it worked just excellent for me! I just want to share it because it wasn't easy to find.

I created a js document with code:

var xmlHttp;
function srvTime(){
	try {
		//FF, Opera, Safari, Chrome
		xmlHttp = new XMLHttpRequest();
	catch (err1) {
		try {
			xmlHttp = new ActiveXObject('Msxml2.XMLHTTP');
		catch (err2) {
			try {
				xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');
			catch (eerr3) {
				//AJAX not supported, use CPU time.
				alert("AJAX not supported");
	xmlHttp.setRequestHeader("Content-Type", "text/html");
	return xmlHttp.getResponseHeader("Date");

var st = srvTime();
var date = new Date(st);
Now, I can use this js within a html like this:

HTML Code:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Server date/time</title>
<script language="javascript" src="serverDate.js"></script>
<script language="javascript">
var localTime = new Date();
document.write("Local machine time is: " + localTime + "<br>");
document.write("Server time is: " + date);
You may change your machine date/time and check both dates.