CODEWITHSUNDEEP
javascriptdatetimemomentjsluxon
Jason Chu
Jason Chu

Reputation: 385

Formatting ISO time with Luxon

Using Luxon JS, I've been trying to format datetime to output in a certain format, using the native toISO function:

This is what I get:

"2018-08-25T09:00:40.000-04:00"

And this is what I want:

"2018-08-25T13:00:40.000Z"

I know that they are both equivalent in terms of unix time and mean the same thing except in a different format, I just want to be able to out the second string rather than the first. I looked through the Luxon docs but was unable to find any arguments/options that would give me what I need.

Upvotes: 15

Views: 50387

Answers (2)

AlTheLazyMonkey
AlTheLazyMonkey

Reputation: 1242

From documentation I saw that in the method .fromISO of DateTime you can add an option object after the string of ISO date ("2018-08-25T09:00:40.000-04:00" in your example). In this object specify zone: utc like that:

const DateTime = luxon.DateTime;

const stringDate = "2018-08-25T09:00:40.000-04:00";

const dt = DateTime.fromISO(stringDate, {zone: 'utc'});

console.log('This is your date format', dt.toISO())
<script src="https://cdnjs.cloudflare.com/ajax/libs/luxon/1.26.0/luxon.min.js"></script>

Upvotes: 4

VincenzoC
VincenzoC

Reputation: 31502

As other already stated in the comments, you can use 2 approaches:

  • Convert Luxon DateTime to UTC using toUTC:

    "Set" the DateTime's zone to UTC. Returns a newly-constructed DateTime.

  • Use toISOString() method of JS Date.

You can use toJSDate() to get the Date object from a luxon DateTime:

Returns a JavaScript Date equivalent to this DateTime.

Examples:

const DateTime = luxon.DateTime;
const dt = DateTime.now();
console.log(dt.toISO())
console.log(dt.toUTC().toISO())
console.log(dt.toJSDate().toISOString())
console.log(new Date().toISOString())
<script src="https://cdn.jsdelivr.net/npm/[email protected]/build/global/luxon.js"></script>

Upvotes: 18

Related Questions