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POJavascript countdown timer using epoch server time
 

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    <p>I'm trying to make a count down timer that counts down from current time to a set time in the future. I got it working perfectly using just JS but I need to use the server's current time not the clients.</p> <p>I've attempted this by using PHP to get the server epoch time, then I want to increment it every second and convert into a Javascript Date object so I can do comparisons and write the remaining time to the DOM. I don't know if this is possible or even the best way to do it but at the moment its wont increment or give a valid/correct date from the server.</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;?php $end_time = $_GET['time']; $server_epoch = $_SERVER['REQUEST_TIME']; ?&gt; &lt;html&gt; &lt;head&gt; &lt;script type="text/javascript"&gt; var counter = setInterval(function(){ countdown(&lt;?= $server_epoch ?&gt;, "&lt;?= $end_time?&gt;"); server_e++; }, 1000); /* * Calculates the time remaining to the nearest second from the current time until the * end time and updates DOM elements with id of "time" to display the formatted time(D,H,M,S) */ function countdown(server, end_time){ var current_time = new Date(server); var end = new Date(end_time); var time_left = (end - current_time) / 1000; if(time_left &lt;= 0){ document.getElementById("time").innerHTML= "Auction has ended" ; } else { var days = Math.floor(time_left / 86400); var hours = Math.floor(((time_left / 86400)-days) * 24); var mins = Math.floor(((((time_left / 86400)-days) * 24)-hours)* 60); var secs = Math.floor(((((((time_left / 86400)-days) * 24)-hours)* 60)-mins) * 60); var day_string = " days, "; if (days == 1){ day_string = " day, " } document.getElementById("time").innerHTML= days + day_string + hours +" hours, " + mins +" mins, "+ secs+" secs" ; document.getElementById("current").innerHTML= current_time ; document.getElementById("ends").innerHTML= end ; } } &lt;/script&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8"&gt; &lt;title&gt;&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;div id="time_box"&gt; &lt;form method="get" action="index.php"&gt; &lt;input type="text" name="time"/&gt; &lt;input type="submit" value="submit"&gt; &lt;/form&gt; php time: &lt;?= $server_epoch; ?&gt;&lt;br/&gt; Current time: &lt;div id="current"&gt;&lt;/div&gt; &lt;br/&gt; Ends: &lt;div id="ends"&gt;&lt;/div&gt;&lt;br/&gt; Time left: &lt;div id="time"&gt;&lt;/div&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>
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    1. COCan you pass an example of a value sent in the time field?
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    2. COpossible duplicate of [using javascript countdown with server side time](http://stackoverflow.com/questions/6755940/using-javascript-countdown-with-server-side-time)
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