😆Creating a Countdown Timer, dakhoathienhoa.com.vn (oK)

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
<p id="demo"></p>
<script>
// Set the date we're counting down to
// var countDownDate = new Date("May 18, 2023 15:37:25").getTime();
var date = new Date();
let day = Number(date.getDate());
let month = Number(date.getMonth()) + 1;
let year = Number(date.getFullYear());
let currentDate = `${year}-${month}-${day} 20:00:00`;
var countDownDate = new Date(currentDate).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 = Number(countDownDate) - Number(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"
  // console.log(JSON.stringify(hours));
  document.getElementById("demo").innerHTML = hours + " giờ " +
    minutes + " phút " + seconds + " giây ";
  // If the count down is over, write some text 
  if (distance < 0) {
    clearInterval(x);
    document.getElementById("demo").innerHTML = "EXPIRED";
  }
}, 1000);
</script>
</body>
</html>

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