获取两个数据时间之间的时差 [英] Get the time difference between two datetimes

问题描述

我知道我可以做任何事情，还有一些更有活力的日子与momentjs。但是令人尴尬的是，我很难做一些似乎很简单的事情：在两次之间取得差异。

示例：

  var now =04/09/2013 15:00:00; 
 var then =04/09/2013 14:20:30; 
 
 //预期结果：
00:39:30
  

我试过的：

  var now = moment（04/09/2013 15:00:00）; 
 var then = moment（04/09/2013 14:20:30）; 
 
 console.log（moment（moment.duration（now.diff（then）））。format（hh：mm：ss））
 //输出10:39:30 
  

我不明白那里的10是什么。我住在巴西，所以我们是utc-0300，如果这是相关的。

moment.duration（now.diff（then） ）是具有正确内部值的持续时间：

  days：0 
 hours： 0 
毫秒：0 
分钟：39 
个月：0 
秒：30 
年：0 
  

所以，我想我的问题是：如何将一个momentjs持续时间转换为一个时间间隔？我确定可以使用

  duration.get（hours）+：+ duration.get（minutes）+ ：+ duration.get（seconds）
  

但是我觉得还有更多的东西

更新

看起来更近，在上面的例子中 now 是：

  Tue Apr 09 2013 15:00:00 GMT-0300 （E.南美洲标准时间）... 
  

和持续时间（now.diff（then）））是：

  Wed Dec 31 1969 22:39 ：30 GMT-0200（E.南美洲夏令时间）... 
  

我不知道为什么第二个值是在日光时间（-0200）...但我相信我不喜欢日期：（

更新2 / p>

很好，值为-0200可能是因为31/12/1969是使用日光时间的日期...所以这样。

解决方案

当总持续时间少于24小时时，此方法将起作用：

  var now =04/09/2013 15:00:00; 
 var then =04/09/2013 14:20:30; 
 
 moment.utc（moment（now，DD / MM / YYYY HH：mm：ss）diff（moment（then，DD / MM / YYYY HH：mm：ss）） ）.format（HH：mm：ss）
 
 //输出：00:39:30
  

如果您有24小时以上的时间，上述方法的时间将重置为零，所以不太理想。

如果您希望得到24小时或更长时间的有效回应，那么您必须这样做：

  var now =04/09/2013 15:00:00; 
 var then =02/09/2013 14:20:30; 
 
 var ms = moment（现在，DD / MM / YYYY HH：mm：ss）diff（moment（then，DD / MM / YYYY HH：mm：ss））; 
 var d = moment.duration（ms）; 
 var s = Math.floor（d.asHours（））+ moment.utc（ms）.format（：mm：ss）; 
 
 //输出：48:39:30
  

请注意我正在使用utc时间作为快捷方式。你可以分别拉出 d.minutes（）和 d.seconds（），但你也必须使用zeropad

这是必要的，因为格式化持续时间异议的能力目前不在moment.js中。 已在此请求。但是，有一个名为时间长度格式的第三方插件专门用于此目的： p>

  var now =04/09/2013 15:00:00; 
 var then =02/09/2013 14:20:30; 
 
 var ms = moment（现在，DD / MM / YYYY HH：mm：ss）diff（moment（then，DD / MM / YYYY HH：mm：ss））; 
 var d = moment.duration（ms）; 
 var s = d.format（hh：mm：ss）; 
 
 //输出：48:39:30
  

I know I can do anything and some more envolving Dates with momentjs. But embarrassingly, I'm having a hard time trying to do something that seems simple: geting the difference between 2 times.

Example:

var now  = "04/09/2013 15:00:00";
var then = "04/09/2013 14:20:30";

//expected result:
"00:39:30"

what I tried:

var now = moment("04/09/2013 15:00:00");
var then = moment("04/09/2013 14:20:30");

console.log(moment(moment.duration(now.diff(then))).format("hh:mm:ss"))
//outputs 10:39:30  

I do not understand what is that "10" there. I live in Brazil, so we are utc-0300 if that is relevant.

The result of moment.duration(now.diff(then)) is a duration with the correct internal values:

 days: 0
 hours: 0
 milliseconds: 0
 minutes: 39
 months: 0
 seconds: 30
 years: 0

So, I guess my question is: how to convert a momentjs Duration to a time interval? I sure can use

duration.get("hours") +":"+ duration.get("minutes") +:+ duration.get("seconds")

but i feel that there is something more elegant that I am completely missing.

update
looking closer, in the above example now is:

Tue Apr 09 2013 15:00:00 GMT-0300 (E. South America Standard Time)…}

and moment(moment.duration(now.diff(then))) is:

Wed Dec 31 1969 22:39:30 GMT-0200 (E. South America Daylight Time)…}

I am not sure why the second value is in Daylight Time (-0200)... but I am sure that i do not like dates :(

update 2

well, the value is -0200 probably because 31/12/1969 was a date where the daylight time was being used... so thats that.

解决方案

This approach will work when the total duration is less than 24 hours:

var now  = "04/09/2013 15:00:00";
var then = "04/09/2013 14:20:30";

moment.utc(moment(now,"DD/MM/YYYY HH:mm:ss").diff(moment(then,"DD/MM/YYYY HH:mm:ss"))).format("HH:mm:ss")

// outputs: "00:39:30"

If you have 24 hours or more, the hours will reset to zero with the above approach, so it is not ideal.

If you want to get a valid response for durations of 24 hours or greater, then you'll have to do something like this instead:

var now  = "04/09/2013 15:00:00";
var then = "02/09/2013 14:20:30";

var ms = moment(now,"DD/MM/YYYY HH:mm:ss").diff(moment(then,"DD/MM/YYYY HH:mm:ss"));
var d = moment.duration(ms);
var s = Math.floor(d.asHours()) + moment.utc(ms).format(":mm:ss");

// outputs: "48:39:30"

Note that I'm using the utc time as a shortcut. You could pull out d.minutes() and d.seconds() separately, but you would also have to zeropad them.

This is necessary because the ability to format a duration objection is not currently in moment.js. It has been requested here. However, there is a third-party plugin called moment-duration-format that is specifically for this purpose:

var now  = "04/09/2013 15:00:00";
var then = "02/09/2013 14:20:30";

var ms = moment(now,"DD/MM/YYYY HH:mm:ss").diff(moment(then,"DD/MM/YYYY HH:mm:ss"));
var d = moment.duration(ms);
var s = d.format("hh:mm:ss");

// outputs: "48:39:30"

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