如果必须显示所有的小时(超过24小时)，如果小时之前的'0'是不必要的，那么格式化可以用一小行代码完成:

Math.floor(duration.as('h')) + moment.utc(duration.as('ms')).format(':mm:ss')

使用这行代码:

moment.utc(moment.duration(4500, "seconds").asMilliseconds()).format("HH:mm:ss")

原生javascript怎么样?

var formatTime = function(integer) {
    if(integer < 10) {
        return "0" + integer; 
    } else {
        return integer;
    }
}

function getDuration(ms) {
    var s1 = Math.floor(ms/1000);
    var s2 = s1%60;
    var m1 = Math.floor(s1/60);
    var m2 = m1%60;
    var h1 = Math.floor(m1/60);
    var string = formatTime(h1) +":" + formatTime(m2) + ":" + formatTime(s2);
    return string;
}

我的解决方案不涉及任何其他库，它与diff > 24小时工作

var momentInSeconds = moment.duration(n,'seconds')
console.log(("0" + Math.floor(momentInSeconds.asHours())).slice(-2) + ':' + ("0" + momentInSeconds.minutes()).slice(-2) + ':' + ("0" + momentInSeconds.seconds()).slice(-2))

将时刻持续时间格式化为字符串

var duration = moment.duration(86400000); //value in milliseconds
var hours = duration.hours();
var minutes = duration.minutes();
var seconds = duration.seconds();
var milliseconds = duration.milliseconds();

var date = moment().hours(hours).minutes(minutes).seconds(seconds).millisecond(milliseconds);
if (is12hr){
    return date.format("hh:mm:ss a");
}else{
    return date.format("HH:mm:ss");
}

使用moment-duration-format。

客户端框架(例如:React)

import moment from 'moment';
import momentDurationFormatSetup from 'moment-duration-format';
momentDurationFormatSetup(moment);

const breakLengthInMinutes = moment.duration(breakLengthInSeconds, 's').format('m');

服务器(node . js)

const moment = require("moment-timezone");
const momentDurationFormatSetup = require("moment-duration-format");

momentDurationFormatSetup(moment);

const breakLengthInMinutes = moment.duration(breakLengthInSeconds, 's').format('m');