script.js

var countDate = new Date('Feb 01, 2025 00:00:00').getTime();

window.addEventListener('load', e => {
    newYear();

    if ('serviceWorker' in navigator) {
        try {
            navigator.serviceWorker.register('sw.js');
            console.log('SW registered');
        } catch (error) {
            console.log('SW reg failed');
        }
    }
});

function newYear () {
    var now = new Date().getTime();
    gap = countDate - now;
    var second = 1000;
    var minute = second * 60;
    var hour = minute * 60;
    var day = hour * 24;
    var d = Math.floor(gap/(day));
    var h = Math.floor(gap%(day)/(hour));
    var m = Math.floor(gap%(hour)/(minute));
    var s = Math.floor(gap%(minute)/(second));
    document.getElementById('day').innerText=d;
    document.getElementById('hour').innerText=h;
    document.getElementById('minute').innerText=m;
    document.getElementById('second').innerText=s;
}

setInterval(function() {
    newYear();
}, 1000)