// Set the date we're counting down to
var countDownDate = new Date(end_time).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);

  // Display the result in the element with id="waktu"
  document.getElementById("waktu").innerHTML = hours + ":"
  + minutes + ":" + seconds;
 
  //document.getElementById("waktu").innerHTML = days + " Hari " + hours + " Jam : "
  //+ minutes + " Menit : " + seconds + " Detik "; 

  // If the count down is finished, write some text
  if (distance < 0) {
    clearInterval(x);

  }
}, 1000);