JavaScript Countdown Timer Hours Minutes Seconds

This JavaScript code snippet helps you to create a countdown timer with hours minutes and second. It sets up a countdown timer to a target date and displaying it on a web page. The target date is set using the new Date().getTime() method, and the variables days, hours, minutes, and seconds are initialized. The getCountdown() function calculates the time left until the target date by finding the difference between the current date and target date in seconds. The countdown string is then formatted using the pad() function, which adds leading zeroes to the time units if they are less than 10.

The formatted string is then displayed on the webpage using the innerHTML property. The countdown timer is updated every second using setInterval().

How to Create JavaScript Countdown Timer Hours Minutes Seconds

Create the HTML structure for the countdown timer with hours minutes second as follows:

<div id="countdown">
  <div id='tiles'></div>
  <div class="labels">
    <li>Days</li>
    <li>Hours</li>
    <li>Mins</li>
    <li>Secs</li>
  </div>
</div>

Now, style the countdown using the following CSS styles:

body{ 
	font: normal 13px/20px Arial, Helvetica, sans-serif; word-wrap:break-word;
	color: #eee;
	background: #353535;
}
#countdown{
	width: 465px;
	height: 112px;
	text-align: center;
	background: #222;
	background-image: -webkit-linear-gradient(top, #222, #333, #333, #222); 
	background-image:    -moz-linear-gradient(top, #222, #333, #333, #222);
	background-image:     -ms-linear-gradient(top, #222, #333, #333, #222);
	background-image:      -o-linear-gradient(top, #222, #333, #333, #222);
	border: 1px solid #111;
	border-radius: 5px;
	box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.6);
	margin: auto;
	padding: 24px 0;
	position: absolute;
  top: 0; bottom: 0; left: 0; right: 0;
}

#countdown:before{
	content:"";
	width: 8px;
	height: 65px;
	background: #444;
	background-image: -webkit-linear-gradient(top, #555, #444, #444, #555); 
	background-image:    -moz-linear-gradient(top, #555, #444, #444, #555);
	background-image:     -ms-linear-gradient(top, #555, #444, #444, #555);
	background-image:      -o-linear-gradient(top, #555, #444, #444, #555);
	border: 1px solid #111;
	border-top-left-radius: 6px;
	border-bottom-left-radius: 6px;
	display: block;
	position: absolute;
	top: 48px; left: -10px;
}

#countdown:after{
	content:"";
	width: 8px;
	height: 65px;
	background: #444;
	background-image: -webkit-linear-gradient(top, #555, #444, #444, #555); 
	background-image:    -moz-linear-gradient(top, #555, #444, #444, #555);
	background-image:     -ms-linear-gradient(top, #555, #444, #444, #555);
	background-image:      -o-linear-gradient(top, #555, #444, #444, #555);
	border: 1px solid #111;
	border-top-right-radius: 6px;
	border-bottom-right-radius: 6px;
	display: block;
	position: absolute;
	top: 48px; right: -10px;
}

#countdown #tiles{
	position: relative;
	z-index: 1;
}

#countdown #tiles > span{
	width: 92px;
	max-width: 92px;
	font: bold 48px 'Droid Sans', Arial, sans-serif;
	text-align: center;
	color: #111;
	background-color: #ddd;
	background-image: -webkit-linear-gradient(top, #bbb, #eee); 
	background-image:    -moz-linear-gradient(top, #bbb, #eee);
	background-image:     -ms-linear-gradient(top, #bbb, #eee);
	background-image:      -o-linear-gradient(top, #bbb, #eee);
	border-top: 1px solid #fff;
	border-radius: 3px;
	box-shadow: 0px 0px 12px rgba(0, 0, 0, 0.7);
	margin: 0 7px;
	padding: 18px 0;
	display: inline-block;
	position: relative;
}

#countdown #tiles > span:before{
	content:"";
	width: 100%;
	height: 13px;
	background: #111;
	display: block;
	padding: 0 3px;
	position: absolute;
	top: 41%; left: -3px;
	z-index: -1;
}

#countdown #tiles > span:after{
	content:"";
	width: 100%;
	height: 1px;
	background: #eee;
	border-top: 1px solid #333;
	display: block;
	position: absolute;
	top: 48%; left: 0;
}

#countdown .labels{
	width: 100%;
	height: 25px;
	text-align: center;
	position: absolute;
	bottom: 8px;
}

#countdown .labels li{
	width: 102px;
	font: bold 15px 'Droid Sans', Arial, sans-serif;
	color: #f47321;
	text-shadow: 1px 1px 0px #000;
	text-align: center;
	text-transform: uppercase;
	display: inline-block;
}

Load the following scripts before closing the body tag:

<script src='//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>

Finally, add the following JavaScript function for its functionality:

var target_date = new Date().getTime() + (1000*3600*48); // set the countdown date
var days, hours, minutes, seconds; // variables for time units

var countdown = document.getElementById("tiles"); // get tag element

getCountdown();

setInterval(function () { getCountdown(); }, 1000);

function getCountdown(){

	// find the amount of "seconds" between now and target
	var current_date = new Date().getTime();
	var seconds_left = (target_date - current_date) / 1000;

	days = pad( parseInt(seconds_left / 86400) );
	seconds_left = seconds_left % 86400;
		 
	hours = pad( parseInt(seconds_left / 3600) );
	seconds_left = seconds_left % 3600;
		  
	minutes = pad( parseInt(seconds_left / 60) );
	seconds = pad( parseInt( seconds_left % 60 ) );

	// format countdown string + set tag value
	countdown.innerHTML = "<span>" + days + "</span><span>" + hours + "</span><span>" + minutes + "</span><span>" + seconds + "</span>"; 
}

function pad(n) {
	return (n < 10 ? '0' : '') + n;
}

That’s all! hopefully, you have successfully created the JavaScript countdown timer hours minutes seconds. If you have any questions or suggestions, feel free to comment below.