All client side applications use the local user's setting to display the date and time. So given that, only a server-side application can give the server time. In order to have a server time change every second as the user is on a page, the server would have to push the time out every second. Not a very efficient techinque given all you want to pass the new time.
Another option would be to convert the users local time to GMT and then find out England's time based on GMT, which I think is +1.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Untitled</title>
<script language="JavaScript1.1">
<!--
//Realtime Clock
//By: Louie Simpson
//http://www.irq11.com/~louie/
var domc = document.getElementById ? 1:0
var clockDiv;
function show_time()
{
if(domc)
{
clockDiv = document.getElementById("dateDiv");
}
else
{
clockDiv = document.dateDiv;
}
var d = new Date();
var h = (d.getTimezoneOffset()/60) + d.getHours() + 1;
h = (h > 12) ? h - 12 : h;
var l = (d.getHours() > 12) ? 'PM' : 'AM';
var m = (d.getMinutes() > 10) ? d.getMinutes() : "0" + d.getMinutes().toString();
var s = (d.getSeconds() > 10) ? d.getSeconds() : "0" + d.getSeconds().toString();
clockDiv.innerHTML = h + ":" + m + ":" + s + " " + l;
setTimeout('show_time()', 1000);
}
//-->
</script>
</head>
<body onLoad="show_time();">
Time in England<br />
<div id="dateDiv"></div>
</body>
</html>