var countDownDate = new Date("February 25, 2021 00:00:00").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 * 60);

      document.getElementById("launch").innerHTML = days + "d " + hours + "h "+ minutes + "m " + seconds + "s ";

      if (distance < 0){
        clearInterval(x);
        document.getElementById("launch").innerHTML = "EXPIRED";
      }
  }, 1000);
