JSFiddle - React, Tailwind, and code Playground

by SpiceLab

HTML

<p id="demo"></p>

CSS

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,body {
  height: 100%; 
}
body {
  display: flex;
  align-items: center;
  justify-content: center;
}
p {
  font-size: 60px;
}

JavaScript

// Set the date we're counting down to
var countDownDate = new Date("Jan 5, 2018 15:37:25").getTime();
 
// Update the count down every 1 second
var x = setInterval(function() {
 
    // Get todays date and time
    var now = new Date().getTime();
 
    // Find the distance between now an 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 ";
 
    // If the count down is over, write some text
    if (distance < 0) {
       clearInterval(x);
       document.getElementById("demo").innerHTML = "EXPIRED";
   }
}, 1000);