你也可以用Sugar。

Date.create().reset().set({seconds: 180}).format('{mm}:{ss}');

这个例子返回'03:00'。

下面是一个函数，根据powtac的答案将秒转换为hh-mm-ss格式

斯菲德尔

/** 
 * Convert seconds to hh-mm-ss format.
 * @param {number} totalSeconds - the total seconds to convert to hh- mm-ss
**/
var SecondsTohhmmss = function(totalSeconds) {
  var hours   = Math.floor(totalSeconds / 3600);
  var minutes = Math.floor((totalSeconds - (hours * 3600)) / 60);
  var seconds = totalSeconds - (hours * 3600) - (minutes * 60);

  // round seconds
  seconds = Math.round(seconds * 100) / 100

  var result = (hours < 10 ? "0" + hours : hours);
      result += "-" + (minutes < 10 ? "0" + minutes : minutes);
      result += "-" + (seconds  < 10 ? "0" + seconds : seconds);
  return result;
}

示例使用

var seconds = SecondsTohhmmss(70);
console.log(seconds);
// logs 00-01-10

更新(2020):

请使用@Frank的一句话解决方案:

new Date(SECONDS * 1000).toISOString().substring(11, 16)

如果SECONDS<3600并且你只想显示MM:SS，那么使用下面的代码:

new Date(SECONDS * 1000).toISOString().substring(14, 19)

这是目前为止最好的解决办法。

旧的回答:

使用Moment.js库。

简单的函数转换秒为hh:mm:ss格式:

function getHHMMSSFromSeconds(totalSeconds) {
    if (!totalSeconds) {
      return '00:00:00';
    }
    const hours = Math.floor(totalSeconds / 3600);
    const minutes = Math.floor(totalSeconds % 3600 / 60);
    const seconds = totalSeconds % 60;
    const hhmmss = padTo2(hours) + ':' + padTo2(minutes) + ':' + padTo2(seconds);
    return hhmmss;
}

// function to convert single digit to double digit
function padTo2(value) {
    if (!value) {
      return '00';
    }
    return value < 10 ? String(value).padStart(2, '0') : value;
}

我只是想对上面这个不错的答案做一点解释:

var totalSec = new Date().getTime() / 1000;
var hours = parseInt( totalSec / 3600 ) % 24;
var minutes = parseInt( totalSec / 60 ) % 60;
var seconds = totalSec % 60;

var result = (hours < 10 ? "0" + hours : hours) + "-" + (minutes < 10 ? "0" + minutes : minutes) + "-" + (seconds  < 10 ? "0" + seconds : seconds);

On the second line, since there are 3600 seconds in 1 hour, we divide the total number of seconds by 3600 to get the total number of hours. We use parseInt to strip off any decimal. If totalSec was 12600 (3 and half hours), then parseInt( totalSec / 3600 ) would return 3, since we will have 3 full hours. Why do we need the % 24 in this case? If we exceed 24 hours, let's say we have 25 hours (90000 seconds), then the modulo here will take us back to 1 again, rather than returning 25. It is confining the result within a 24 hour limit, since there are 24 hours in one day.

当你看到这样的东西:

25 % 24

你可以这样想:

25 mod 24 or what is the remainder when we divide 25 by 24

这招很管用:

function secondstotime(secs)
{
    var t = new Date(1970,0,1);
    t.setSeconds(secs);
    var s = t.toTimeString().substr(0,8);
    if(secs > 86399)
        s = Math.floor((t - Date.parse("1/1/70")) / 3600000) + s.substr(2);
    return s;
}

(来源此处)