Javascript时差错误

Question

我在下面的Javascript中遇到了问题。我正在尝试完成一个倒计时钟，但我得到的结果是关闭，即今天1900小时以下的到期时间

当前时间是17:16:00时还剩11:44:00。它应该是1小时44分钟。它在某处增加了10个小时。

关于我出错的地方的任何想法都已经用相同的结果重写了这个。我知道它还不是干净的代码。我只是原型设计。

此致

var countDownDueTime = new Date('September 26, 2015 19:00:00')

function updateClock() {
    var currentTime = new Date();
    var currentHours = currentTime.getHours();
    var currentMinutes = currentTime.getMinutes();
    var currentSeconds = currentTime.getSeconds();

    //Pad time to make 2 digit minutes and seconds
    currentMinutes = (currentMinutes < 10 ? "0" : "" ) + currentMinutes;
    currentSeconds = (currentSeconds < 10 ? "0" : "" ) + currentSeconds;

    var currentTimeString = currentHours + ":" + currentMinutes + ":" + currentSeconds;

    $("#clock").html(currentTimeString);
    countDown(currentTime);
}

function countDown(currentTime) {
    var difference = new Date(countDownDueTime - currentTime);
    var currentHours = difference.getHours();
    var currentMinutes = difference.getMinutes();
    var currentSeconds = difference.getSeconds();

    //Pad time to make 2 digit minutes and seconds
    currentMinutes = (currentMinutes < 10 ? "0" : "" ) + currentMinutes;
    currentSeconds = (currentSeconds < 10 ? "0" : "" ) + currentSeconds;

    var currentTimeString = currentHours + ":" + currentMinutes + ":" + currentSeconds;

    $("#countDown").html(currentTimeString);
}

$(document).ready(function() {
    setInterval('updateClock()', 1000);
})