使用JavaScript中的时间跨度 [英] Work with a time span in Javascript

问题描述

已经使用Date.js，但如果需要，也可以使用另一个库。

Using Date.js already, but can also use another library if necessary.

不知道使用时间增量的最佳方法是什么。具体来说，我想显示从现在到过去的日期时间之间的时间。

Not sure what is the best way to work with time deltas. Specifically, I want to display the time that has elapsed between now and a past date-time.

所以我需要这样做：

var elapsed_time = new Date() - pastDate;
pastDate.toString('days-hours-minutes-seconds');

得到它主要使用Date.js，但问题是现在我正在使用日期对象而不是时间段，所以应该是23小时的时间跨度是日期第一次的23小时后：

Gotten it to mostly work using Date.js, but the problem is now I'm working with a Date object and not a timespan, so what should be an 23 hour time span is instead 23 hours after the Date's very first time:

var result = (new Date()) - past_date;
"result" is the number (probably milliseconds): 15452732

var result = (new Date() - past_date
"result" is a date from 1969: Wed Dec 31 1969 23:17:32

什么我需要的是：

0 days 23 hours 17 minutes and 32 seconds

任何想法？

推荐答案

听起来像你需要 moment.js

例如

moment().subtract('days', 6).calendar();

=>上星期日8:23 PM

=> last Sunday at 8:23 PM

moment().startOf('hour').fromNow();

=> 26分钟前

编辑：

纯JS日期差异计算：

var date1 = new Date("7/Nov/2012 20:30:00");
var date2 = new Date("20/Nov/2012 19:15:00");

var diff = date2.getTime() - date1.getTime();

var days = Math.floor(diff / (1000 * 60 * 60 * 24));
diff -=  days * (1000 * 60 * 60 * 24);

var hours = Math.floor(diff / (1000 * 60 * 60));
diff -= hours * (1000 * 60 * 60);

var mins = Math.floor(diff / (1000 * 60));
diff -= mins * (1000 * 60);

var seconds = Math.floor(diff / (1000));
diff -= seconds * (1000);

document.write(days + " days, " + hours + " hours, " + mins + " minutes, " + seconds + " seconds");

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