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countdown-timer-js.html
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<!DOCTYPE HTML>
<html>
<!--
File: Countdown Timer in Javascript
Desc: Example code from w3schools.com TryIt
URL: <https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_countdown>
Date: 2023-03-03
Modified: 2023-05-26
Edit: Edits and code formatting by -pdw
Auth: sumkittehz.codes
-->
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Countdown Timer in JavaScript</title>
<style>
* {box-sizing:border-box;}
body { font-size:3.5em; font-family:monospace; }
#demo {
font-family:monospace;
font-size:5vw;
margin: auto;
padding: 2vh 2vw;
text-align: center;
color: cyan;
background-color: black;
}
</style>
</head>
<body>
<div id="demo"><!-- This element is where the time is displayed. --></div>
<script>
// Set the date we're counting down to
var countDownDate = new Date("Jun 2, 2023 00:00:00").getTime();
// Update the count down every 1 second
var x = setInterval(displayCountdown,1000);
function displayCountdown() {
// Get today's date and time
var now = new Date().getTime();
// Find the distance between now and the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("demo").innerHTML = days + "d " +
hours + "h " + minutes + "m " + seconds + "s ";
/*
document.getElementById("demo").innerHTML = distance + "s";
*/
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("demo").innerHTML = "EXPIRED";
}
}
</script>
</body>
</html>