$(window).on("load", function() { var countdownInterval, promotionEndTime = new Date("2024-04-19T00:00:00+05:45").getTime(); function updateCountdown() { var currentTime = new Date().getTime(), timeDifference = promotionEndTime - currentTime, days = Math.floor(timeDifference / (1000 * 60 * 60 * 24)), hours = Math.floor((timeDifference % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)), minutes = Math.floor((timeDifference % (1000 * 60 * 60)) / (1000 * 60)), seconds = Math.floor((timeDifference % (1000 * 60)) / 1000); if (timeDifference >= 0) { $(".promotion-bar").show(); $("#page-body").addClass("promotion-active"); $("#top-navigation").addClass("promotion-sale"); $("#days").text(days); $("#hours").text(hours); $("#minutes").text(minutes); $("#seconds").text(seconds); } else { clearInterval(countdownInterval); $(".promotion-bar").hide(); $("#page-body").removeClass("promotion-active"); $("#top-navigation").removeClass("promotion-sale"); } } countdownInterval = setInterval(updateCountdown, 1000); updateCountdown(); });