Display PHP Clock with user input date

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Javascript

PHP

DateTime

The following PHP code displays a clock with current date and time.

I want the clock to receive user input date.

How can this be done?

date_default_timezone_set("Asia/Kolkata");
if(@$_GET["action"]=="getTime"){
$time1 = Time();

$date1 = date("m/d/Y h:i:s A",$time1);
//echo $date1; // time output for ajax request

$aa=explode(" ",$date1);
//echo "";
echo "Date: ".$aa[0];
echo "";
echo "Time: " .$aa[1];
die();


}
?>



<script type="text/javascript">
window.onload = startInterval;
function startInterval() {
setInterval("startTime();",1000);
}
function startTime() {
AX = new ajaxObject("?action=getTime", showTime)
AX.update(); // start Ajax Request
}
// CallBack
function showTime( data ){
document.getElementById('qwe').innerHTML = data;
}
</script>



<script type="text/javascript">
// Ajax Object - Constructor
function ajaxObject(url, callbackFunction) {
var that=this;
this.updating = false;
this.abort = function() {
if (that.updating) {
that.updating=false;
that.AJAX.abort();
that.AJAX=null;
}
};
this.update =
function(passData,postMethod) {
if (that.updating) { return false; }
that.AJAX = null;
if (window.XMLHttpRequest) {
that.AJAX=new XMLHttpRequest();
}else{
that.AJAX=new ActiveXObject("Microsoft.XMLHTTP");
}
if (that.AJAX==null) {
return false;
}else{
that.AJAX.onreadystatechange = function() {
if (that.AJAX.readyState==4) {
that.updating=false;
that.callback( that.AJAX.responseText, that.AJAX.status, that.AJAX.responseXML, that.AJAX.getAllResponseHeaders() );
that.AJAX=null;
}
};
//var dt= ;
that.updating = new Date();
if (/post/i.test(postMethod)) {
var uri=urlCall+(/\?/i.test(urlCall)?'&':'?')+'timestamp='+that.updating.getTime();
that.AJAX.open("POST", uri, true);
that.AJAX.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
that.AJAX.setRequestHeader("Content-Length", passData.length);
that.AJAX.send(passData);
}else{
var uri=urlCall+(/\?/i.test(urlCall)?'&':'?')+passData+'×tamp='+(that.updating.getTime());
that.AJAX.open("GET", uri, true);
that.AJAX.send(null);
}
return true;
}
};
var urlCall = url;
this.callback = callbackFunction || function (){};
}
</script>