Nodejs的时差？

Question

我试图找出一种方法来获得两个日期之间的时间差。

例如，之间的差异为：

2013-5-11 8:37:18

2013-5-11 10:37:18

尝试：

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，

时出错

  

的getTime（）

找不到功能

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)

您需要moment.js模块

npm install -S moment

Answer 2

timezonecomplete模块支持日期差异，即使是不同时区的日期也是如此。它返回一个可识别单位的Duration对象，而不仅仅是一个代表“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

获取剩余的日子：

var moment = require('moment');

var startDate = moment(new Date()).format("YYYY-MM-DD");

var endDate = moment(new Date("Tue Aug 27 2015 09:13:40 GMT+0530 (IST)")).format("YYYY-MM-DD");

var remainingDate = moment(endDate).diff(startDate, 'days');

console.log(remainingDate) // at time of posting, 106 days

Answer 4

如果只想像我一样在循环上设置超时，则根本不需要使用momentjs。请尝试以下操作。

let timeout = 3; //seconds
console.log("start:" + new Date());
let start = Number(Date.now());
let end = start + timeout * 1000;
while (Number(Date.now()) < end) {
  // your code here
}

console.log("end:" + new Date());

PS：我知道这篇文章并不能完全回答所提出的问题，但这是当您搜索“ nodejs的时差”时弹出的链接。

Answer 5

我们也可以使用这个优化的代码，

function calculateDays(startDate,endDate)
{
   var start_date = moment(startDate, 'YYYY-MM-DD HH:mm:ss');
   var end_date = moment(endDate, 'YYYY-MM-DD HH:mm:ss');
   var duration = moment.duration(end_date.diff(start_date));
   var days = duration.asDays();       
   return days;
}

此处您需要安装moment并希望在使用之前导入。

Answer 6

它将检查系统时间并找到差异。

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Answer 7

Moment.js

const MOMENT = require('moment');

const TimeDiff = ( startTime, endTime, format ) => {

    startTime = MOMENT( startTime, 'YYYY-MM-DD HH:mm:ss' );
    endTime = MOMENT( endTime, 'YYYY-MM-DD HH:mm:ss' );
    return endTime.diff( startTime, format);
}

let startTime = new Date('2013-5-11 8:37:18');
let endTime = new Date('2013-5-11 10:37:18');

console.log( TimeDiff(startTime, endTime, 'seconds'));