JavaScript 倒计时器到每天的特定时间

Question

我目前正在开发一个标题为倒计时器的网站:http://iphone.myhandykey.com/

当前计时器只有 12 小时 + 几分钟。我想要的是倒计时器将显示当前访客所在时区到晚上 11 点为止的剩余时间。那可能吗？谢谢!

Here is the JavaScript:



function startTimer(duration, display) {
    var timer = duration, hours, minutes, seconds;
        setInterval(function () {



        hours = parseInt(((timer / 60) / 60 ) % 60, 10);



        minutes = parseInt((timer / 60)%60, 10);
        seconds = parseInt(timer % 60, 10);

        hours = hours < 10 ? "0" + hours : hours;
        minutes = minutes < 10 ? "0" + minutes : minutes;
        seconds = seconds < 10 ? "0" + seconds : seconds;

        display.textContent = hours + ":" + minutes + ":" + seconds;



        if (--timer < 0) {
            timer = duration;
        }
    }, 1000);
}

window.onload = function () {
    var onehour = 60 * 600 * 1.231,
        display = document.querySelector('#time');
    startTimer(onehour, display);
};

这是 HTML:

<span id=time></span>

编辑:如果访客的当前时间是晚上 11:40，则应显示还剩 23 小时和 20 分钟。

Answer 1

(function() {
  var start = new Date;
  start.setHours(23, 0, 0); // 11pm

  function pad(num) {
    return ("0" + parseInt(num)).substr(-2);
  }

  function tick() {
    var now = new Date;
    if (now > start) { // too late, go to tomorrow
      start.setDate(start.getDate() + 1);
    }
    var remain = ((start - now) / 1000);
    var hh = pad((remain / 60 / 60) % 60);
    var mm = pad((remain / 60) % 60);
    var ss = pad(remain % 60);
    document.getElementById('time').innerHTML =
      hh + ":" + mm + ":" + ss;
    setTimeout(tick, 1000);
  }

  document.addEventListener('DOMContentLoaded', tick);
})();

Only <span id='time'></span> left!