已经有很多答案了，但我的要求是:

转换为持续时间(即，应适用于大于24小时的值) 关心的小数秒到给定的十进制精度 如果为零，则截断前面的小时和分钟。

const seconds2duration = ( seconds, decimals=0 ) => { let fraction = ( seconds - Math.floor( seconds ) ).toFixed( decimals ); fraction = decimals === 0 ? '' : fraction.slice( 1 ); const [ hours, mins, secs ] = [ seconds / 3600, seconds % 3600 / 60, seconds % 3600 % 60 ].map( ( x ) => String( Math.floor( x ) ).padStart( 2, '0' ) ); if ( hours === '00' && mins === '00' ) { return secs + fraction; } else if ( hours === '00' ) { return [ mins, secs + fraction ].join( ':' ); } else { return [ hours, mins, secs + fraction ].join( ':' ); } }; console.log(seconds2duration(25*3600 + 0*60 + 41 + 0.333, 0)); // 25:00:41 console.log(seconds2duration(0*3600 + 5*60 + 41 + 0.333, 0)); // 05:41 console.log(seconds2duration(0*3600 + 5*60 + 41 + 0.333, 1)); // 05:41.3 console.log(seconds2duration(0*3600 + 0*60 + 41 + 0.333, 2)); // 41.33

你也可以使用下面的代码:

int ss = nDur%60;
nDur   = nDur/60;
int mm = nDur%60;
int hh = nDur/60;

我认为标准Date对象的任何内置特性都不会以一种比自己做数学更方便的方式为您做这件事。

hours = Math.floor(totalSeconds / 3600);
totalSeconds %= 3600;
minutes = Math.floor(totalSeconds / 60);
seconds = totalSeconds % 60;

例子:

let totalSeconds = 28565; let hours = Math.floor(totalSeconds / 3600); totalSeconds %= 3600; let minutes = Math.floor(totalSeconds / 60); let seconds = totalSeconds % 60; console.log("hours: " + hours); console.log("minutes: " + minutes); console.log("seconds: " + seconds); // If you want strings with leading zeroes: minutes = String(minutes).padStart(2, "0"); hours = String(hours).padStart(2, "0"); seconds = String(seconds).padStart(2, "0"); console.log(hours + ":" + minutes + ":" + seconds);

我遇到了一些人提到的情况，其中秒的数量超过了一天。以下是@Harish Anchu评分最高的答案的改编版本，该答案解释了更长的时间:

function secondsToTime(seconds) {
  const arr = new Date(seconds * 1000).toISOString().substr(11, 8).split(':');

  const days = Math.floor(seconds / 86400);
  arr[0] = parseInt(arr[0], 10) + days * 24;

  return arr.join(':');
}

例子:

secondsToTime(101596) // outputs '28:13:16' as opposed to '04:13:16'

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

在JavaScript Date方法的帮助下，你可以在没有任何外部JavaScript库的情况下做到这一点，如下:

const date = new Date(null);
date.setSeconds(SECONDS); // specify value for SECONDS here
const result = date.toISOString().slice(11, 19);

或者，按照@Frank的评论;一句话:

new Date(SECONDS * 1000).toISOString().slice(11, 19);