Changing date format javascript

Question

I'm pulling some data from two different APIs and I want to the objects later on.

However, I'm getting two different date formats: this format "1427457730" and this format "2015-04-10T09:12:22Z". How can I change the format of one of these so I have the same format to work with?

$.each(object, function(index) {
  date = object[index].updated_at;
}

Load es5-shim to ensure that the environment handles toISOString then date = (/^\d+$/).test(d) ? new Date(d * 1000).toISOString().slice(0, -5) + 'Z': d; where d is object[index].updated_at Now all formats will be like "2015-04-10T09:12:22Z" — Xotic750
– Xotic750, Commented Jan 9, 2016 at 16:27

robertklep · Accepted Answer · 2016-01-09 16:06:09Z

4

Here's one option:

var timestamp  = 1427457730;
var date       = new Date(timestamp * 1000); // wants milliseconds, not seconds
var dateString = date.toISOString().replace(/\.\d+Z/, 'Z'); // remove the ms

dateString will now be 2015-03-27T12:02:10Z.

answered Jan 9, 2016 at 16:06

robertklep

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Stef Kors Over a year ago

This worked for me. if got the same formatting perfectly thanks!

iplus26 · Accepted Answer · 2016-01-09 16:21:19Z

3

Try moment.js

var timestamp = 1427457730;
var date      = '2015-04-10T09:12:22Z';

var m1 = moment(timestamp);
var m2 = moment(date);

console.log(m1);
console.log(m2);

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.11.1/moment.min.js"></script>

You can use .format() method in moment to parse the date to whatever format you want, just like:

m2.format('YYYY MMM DD ddd HH:mm:ss') // 2015 Apr 10 Fri 17:12:22

Check out the docs for more format tokens.

edited Jan 9, 2016 at 16:21

answered Jan 9, 2016 at 16:12

iplus26

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Comments

adeneo · Accepted Answer · 2016-01-09 16:15:11Z

2

What you probably want in javascript, are date objects.
The first string is seconds since epoch, javascript needs milliseconds, so multiply it by 1000;
The second string is a valid ISO date, so if the string contains a hyphen just pass it into new Date.

var date = returned_date.indexOf('-') !== -1 ? returned_date : returned_date * 1000;

var date_object = new Date(date);

Making both types into date objects, you could even turn that into a handy function

function format_date(date) {
    return new Date(date.indexOf('-') !== -1 ? date : date * 1000);
}

FIDDLE

edited Jan 9, 2016 at 16:15

answered Jan 9, 2016 at 16:09

adeneo

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5 Comments

Stef Kors Over a year ago

This is also a great way of solving it. what would be easier to work with, this way? or the method of @robertklep? In the future I would like to order objects chronological based on these dates

adeneo Over a year ago

What's easier depends on you I suppose, this takes both types, and returns objects, which you then could stick in an array, and just sort them

Stef Kors Over a year ago

I tried to sort it today, but it won't sort. I'm using .sort(); on the array. I sorts nicely if I fill the array with something else like strings. dl.dropboxusercontent.com/u/1207224/… any suggestions on sorting with the function you wrote?

adeneo Over a year ago

@user3199999 - sorting dates should work just fine -> jsfiddle.net/fg9fvqt6/1

Stef Kors Over a year ago

thanks man, I first tried it without the function in the sort. thanks for the tip. I'm not a expert in adding those minimalistic functions, with the sort of function you made for sorting. Now A and B are a item in the array. I my case I'm using a array filled with arrays which have a timestamp on the first place like so -> jsfiddle.net/fg9fvqt6/2

kctang · Accepted Answer · 2016-01-09 16:10:35Z

2

Take a look at http://momentjs.com/. It is THE date/time formatting library for JavaScript - very simple to use, extremely flexible.

answered Jan 9, 2016 at 16:10

kctang

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1 Comment

Stef Kors Over a year ago

thanks for the tip, though if possible I would like to not use additional plugins since this is the only date/time stuff I'm working with

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