MediaWiki:Countdown.js

//Countdown

// Set the date we're counting down to the game's release
var countDownDate = new Date("Dec 31, 2021 00:00:00").getTime();

// Update the count down every 1 second
var x = setInterval(function() {

  // 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="game1"
  document.getElementById("game1").innerHTML = days + "d " + hours + "h " + minutes + "m " + seconds + "s ";
    
  // If the count down is over, write "Available now!" 
  if (distance < 0) {
    clearInterval(x);
    document.getElementById("game1").innerHTML = "Available now!";
  }

}, 1000);