时差在Nodejs？

Question

我试着想出一种方法，在两个日期之间以秒为单位得到时差。

例如，以下之间的秒差：

2013-5-11 8:37:18

2013-5-11 10:37:18

试过：

function timeDifference(laterdate, earlierdate) {
    var difference = laterdate.getTime() - earlierdate.getTime();
    var daysDifference = Math.floor(difference/1000/60/60/24);
    difference -= daysDifference*1000*60*60*24
    var hoursDifference = Math.floor(difference/1000/60/60);
    difference -= hoursDifference*1000*60*60
    var minutesDifference = Math.floor(difference/1000/60);
    difference -= minutesDifference*1000*60
    var secondsDifference = Math.floor(difference/1000);

    return secondsDifference;
}

但是这在Nodejs中不起作用，

getTime()

函数未被找到

Answer 1

var moment = require('moment')
var startDate = moment('2013-5-11 8:73:18', 'YYYY-M-DD HH:mm:ss')
var endDate = moment('2013-5-11 10:73:18', 'YYYY-M-DD HH:mm:ss')
var secondsDiff = endDate.diff(startDate, 'seconds')
console.log(secondsDiff)

您将需要moment.js模块

npm install -S moment

Answer 2

timezonecomplete模块支持日期差异，甚至支持不同时区中的日期。它返回一个具有单元感知的持续时间对象，而不仅仅是表示“毫秒”的“数字”：

var tc = require("timezonecomplete");   

var start = new tc.DateTime("2014-06-26T12:00:00 Europe/Amsterdam");
var end = new tc.DateTime("2014-06-26T12:00:00 UTC");

var duration = end.diff(start);  // unit-aware duration

console.log(duration.minutes()); // -120
console.log(duration.hours()); // -2

Answer 3

它将检查系统时间并找出差异。

var moment = require('moment')
var firstTime = moment();

setInterval(someTask,1000);
function someTask(){
  var secondTime = moment();
  var timeDifference = secondTime.diff(firstTime, 'seconds')
  console.log(timeDifference)
}`