如何在JavaScript中將時間毫秒轉換爲小時，分鐘，秒格式？

Question

我有時間毫秒，但我想要轉換後的時間，如00:00:00。例如：

例如：以毫秒爲單位= 86400000。我想要幾毫秒的時間，如00:00:00

如何使用JavaScript？

Answer 1

怎麼樣，如下圖所示創建一個JavaScript函數這樣做：

function msToTime(duration) { 
     var milliseconds = parseInt((duration%1000)/100) 
      , seconds = parseInt((duration/1000)%60) 
      , minutes = parseInt((duration/(1000*60))%60) 
      , hours = parseInt((duration/(1000*60*60))%24); 

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

     return hours + ":" + minutes + ":" + seconds + "." + milliseconds; 
    } 

Answer 2

要在毫秒轉換時間爲人類可讀的格式。

function timeConversion(millisec) { 

     var seconds = (millisec/1000).toFixed(1); 

     var minutes = (millisec/(1000 * 60)).toFixed(1); 

     var hours = (millisec/(1000 * 60 * 60)).toFixed(1); 

     var days = (millisec/(1000 * 60 * 60 * 24)).toFixed(1); 

     if (seconds < 60) { 
      return seconds + " Sec"; 
     } else if (minutes < 60) { 
      return minutes + " Min"; 
     } else if (hours < 24) { 
      return hours + " Hrs"; 
     } else { 
      return days + " Days" 
     } 
    } 

Answer 3

我有同樣的問題，這是我落得這樣做：

function parseMillisecondsIntoReadableTime(milliseconds){ 
 
    //Get hours from milliseconds 
 
    var hours = milliseconds/(1000*60*60); 
 
    var absoluteHours = Math.floor(hours); 
 
    var h = absoluteHours > 9 ? absoluteHours : '0' + absoluteHours; 
 

 
    //Get remainder from hours and convert to minutes 
 
    var minutes = (hours - absoluteHours) * 60; 
 
    var absoluteMinutes = Math.floor(minutes); 
 
    var m = absoluteMinutes > 9 ? absoluteMinutes : '0' + absoluteMinutes; 
 

 
    //Get remainder from minutes and convert to seconds 
 
    var seconds = (minutes - absoluteMinutes) * 60; 
 
    var absoluteSeconds = Math.floor(seconds); 
 
    var s = absoluteSeconds > 9 ? absoluteSeconds : '0' + absoluteSeconds; 
 

 

 
    return h + ':' + m + ':' + s; 
 
} 
 

 

 
var time = parseMillisecondsIntoReadableTime(86400000); 
 

 
alert(time);

Answer 4

這一個返回時間，如YouTube視頻

function getYoutubeLikeToDisplay(millisec) { 
     var seconds = (millisec/1000).toFixed(0); 
     var minutes = Math.floor(seconds/60); 
     var hours = ""; 
     if (minutes > 59) { 
      hours = Math.floor(minutes/60); 
      hours = (hours >= 10) ? hours : "0" + hours; 
      minutes = minutes - (hours * 60); 
      minutes = (minutes >= 10) ? minutes : "0" + minutes; 
     } 

     seconds = Math.floor(seconds % 60); 
     seconds = (seconds >= 10) ? seconds : "0" + seconds; 
     if (hours != "") { 
      return hours + ":" + minutes + ":" + seconds; 
     } 
     return minutes + ":" + seconds; 
    } 

輸出：

• getYoutubeLikeToDisplay（129900）= 「2:10」
• getYoutubeLikeToDisplay（1229900）= 「20:30」
• getYoutubeLikeToDisplay（21229900）= 「5點53分五十○秒」

Answer 5

我的解決方案

var sunriseMills = 1517573074000;   // sunrise in NewYork on Feb 3, 2018 - UTC time 
var offsetCityMills = -5 * 3600 * 1000; // NewYork delay to UTC 
var offsetDeviceMills = new Date().getTimezoneOffset() * 60 * 1000 ; // eg. I live in Romania (UTC+2) >> getTimezoneOffset() = 120 

var textTime = new Date(sunriseMills + offsetCityMills + offsetDeviceMills) 
    .toLocaleTimeString('en-US', { hour: 'numeric', minute: 'numeric' }); 

textTime將成爲'7.04 AM'

Answer 6

基於@Chand的回答。這是在Typescript中的實現。比在JS中強制類型更安全一些。如果刪除類型註釋應該是有效的JS。還使用新的字符串函數來標準化時間。 [在JavaScript中格式化日期]的

function displayTime(millisec: number) { 
const normalizeTime = (time: string): string => (time.length === 1) ? time.padStart(2, '0') : time; 

let seconds: string = (millisec/1000).toFixed(0); 
let minutes: string = Math.floor(parseInt(seconds)/60).toString(); 
let hours: string = ''; 

if (parseInt(minutes) > 59) { 
    hours = normalizeTime(Math.floor(parseInt(minutes)/60).toString()); 
    minutes = normalizeTime((parseInt(minutes) - (parseInt(hours) * 60)).toString()); 
} 
seconds = normalizeTime(Math.floor(parseInt(seconds) % 60).toString()); 

if (hours !== '') { 
    return `${hours}:${minutes}:${seconds}`; 
} 
    return `${minutes}:${seconds}`; 
}