30 seconds countdown js code example
Example 1: javascript countdown 10 seconds
var timeleft = 10;
var downloadTimer = setInterval(function(){
if(timeleft <= 0){
clearInterval(downloadTimer);
}
document.getElementById("progressBar").value = 10 - timeleft;
timeleft -= 1;
}, 1000);
<progress value="0" max="10" id="progressBar"></progress>
Example 2: javascript countdown timer including days
var countDownDate = new Date("Jul 25, 2021 16:37:52").getTime();
var myfunc = setInterval(function() {
var now = new Date().getTime();
var timeleft = countDownDate - now;
var days = Math.floor(timeleft / (1000 * 60 * 60 * 24));
var hours = Math.floor((timeleft % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((timeleft % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((timeleft % (1000 * 60)) / 1000);
}, 1000)