// Set the date we're counting down to
// 1. JavaScript
// var countDownDate = new Date("Sep 5, 2018 15:37:25").getTime();
// 2. PHP
        var countDownDate = 1555231440 * 1000;
    var now = 1714245998 * 1000;

    if(document.getElementById("timer") != null){
        // Update the count down every 1 second
        var x = setInterval(function() {

            // Get todays date and time
            // 1. JavaScript
            // var now = new Date().getTime();
            // 2. PHP
            now = now + 1000;

            // Find the distance between now an the count down date
            var distance = ( countDownDate - now ) - 1000; //custom deduct 1ms to match with current time on display.
                        
            // 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="timer"
            if (days > 0){
                document.getElementById("timer").innerHTML = "倒数 " + days + "d " + hours + "h " +
                minutes + "m " + seconds + "s ";
            } else if ( days == 0 && hours > 0){
                document.getElementById("timer").innerHTML = "倒数 " +  hours + "h " + minutes + "m " + seconds + "s ";
            } else if ( days == 0 && hours == 0 && minutes > 0){
                document.getElementById("timer").innerHTML = "倒数 " + minutes + "m " + seconds + "s ";
            } else {
                document.getElementById("timer").innerHTML = "倒数 " + seconds + "s ";
            }

            // If the count down is over, write some text
            // If the cound down is over, replace the text into a link with image
            if (distance < 0) {
                clearInterval(x);
                document.getElementById("timer").innerHTML = "";
                document.getElementById("countdown-button").style.display = "block";
            }
        }, 1000);
    }