JSFiddle - React, Tailwind, and code Playground

by Lena R

HTML

<p id="counter"></p>

CSS

p {
  text-align: center;
  font-size: 48px;
  color: red;
  font-weight: 900;
}

JavaScript

var countDownDate = new Date("Nov 23, 2018 17:00:00").getTime();

var x = setInterval(function() {
    var now = new Date().getTime();
    var distance = countDownDate - now;

    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);
    

    document.getElementById("counter").innerHTML = days + "d: " + hours + "h: "
    + minutes + "m: " + seconds + "s ";
    
        if (distance < 0) {
        clearInterval(x);
        document.getElementById("counter").innerHTML = "EXPIRED";
    }
}, 1000);