Know Your Mentor

function startCountdown(endTime) {
function updateCountdown() {
let now = new Date().getTime();
let timeLeft = endTime - now;

if (timeLeft <= 0) { document.getElementById("countdown-timer").innerHTML = "Time is up!"; clearInterval(timer); return; } let days = Math.floor(timeLeft / (1000 * 60 * 60 * 24)); let hours = Math.floor((timeLeft % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)); let minutes = Math.floor((timeLeft % (1000 * 60 * 60)) / (1000 * 60)); let seconds = Math.floor((timeLeft % (1000 * 60)) / 1000); document.getElementById("days").innerText = days; document.getElementById("hours").innerText = hours; document.getElementById("minutes").innerText = minutes; document.getElementById("seconds").innerText = seconds; } updateCountdown(); // Run immediately let timer = setInterval(updateCountdown, 1000); } // Set the countdown target date (YYYY, MM (0-based), DD, HH, MM, SS) let countdownDate = new Date(2025, 3, 21, 23, 59, 59).getTime(); // Change this to your target date startCountdown(countdownDate); #countdown-timer { font-size: 20px; font-weight: bold; color: red; text-align: center; margin-top: 10px; }

You can see how this popup was set up in our step-by-step guide: https://wppopupmaker.com/guides/auto-opening-announcement-popups/