Code
<script language="JavaScript">
function fulltime() {
var time=new Date();
document.clock.full.value=time.toLocaleString();
setTimeout('fulltime()',500)
}
</script>
<body bgcolor=ffffff text=ff0000>
<center>
<form name=clock>
<input type=text size=45 name=full>
</form>
<script language="JavaScript">
fulltime();
</script>