Guide on retrieving just the time from an ISO date format using JavaScript

Question

Guide on retrieving just the time from an ISO date format using JavaScript

let isoDate = '2018-01-01T18:00:00Z';

My goal is to extract the time of 18:00 from the given ISO date using any available method, including moment.js.

javascript

Answer 1

Answer №1

Vanilla Javascript example showcasing how to work with dates and times.

const dateObj = new Date('2018-01-01T18:00:00Z');
const hour = dateObj.getUTCHours();
const minute = dateObj.getUTCMinutes();

console.log(hour, minute);
console.log(`${hour}:${minute}`); // e.g: 15:38

This code makes use of the built-in Date object in JavaScript. If you prefer not to rely on external libraries for this task, give it a try.

For further information, visit: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

Answer 2

Vanilla Javascript example showcasing how to work with dates and times.

const dateObj = new Date('2018-01-01T18:00:00Z');
const hour = dateObj.getUTCHours();
const minute = dateObj.getUTCMinutes();

console.log(hour, minute);
console.log(`${hour}:${minute}`); // e.g: 15:38

This code makes use of the built-in Date object in JavaScript. If you prefer not to rely on external libraries for this task, give it a try.

For further information, visit: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

Answer 3

Answer №2

To find that exact section, you can utilize regular expressions.

const dateTime = '2022-12-31T23:59:59Z';
const timeResult = dateTime.match(/\d\d:\d\d/);
console.log(timeResult[0]);

Answer 4

To find that exact section, you can utilize regular expressions.

const dateTime = '2022-12-31T23:59:59Z';
const timeResult = dateTime.match(/\d\d:\d\d/);
console.log(timeResult[0]);

Answer 5

Answer №3

Looking for a simple solution in JavaScript? Here's a one-liner to extract the time from a date string:

console.log("2018-01-01T18:00:00Z".replace(/^[^:]*([0-2]\d:[0-5]\d).*$/, "$1"));

If you have a Date object instead of a string, you can easily convert it using the toISOString method like this:

let date = new Date('2018-01-01T18:00:00Z');
console.log(date.toISOString().replace(/^[^:]*([0-2]\d:[0-5]\d).*$/, "$1"));

Answer 6

Looking for a simple solution in JavaScript? Here's a one-liner to extract the time from a date string:

console.log("2018-01-01T18:00:00Z".replace(/^[^:]*([0-2]\d:[0-5]\d).*$/, "$1"));

If you have a Date object instead of a string, you can easily convert it using the toISOString method like this:

let date = new Date('2018-01-01T18:00:00Z');
console.log(date.toISOString().replace(/^[^:]*([0-2]\d:[0-5]\d).*$/, "$1"));

Answer 7

Answer №4

If you're looking to achieve this, I recommend utilizing the momentjs library.

By default, moment will parse and display in local time. To parse or display a moment in UTC, simply use moment.utc() instead of moment()

var t = moment.utc("2018-01-01T18:00:00Z").format("HH:mm")
console.log(t)

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="660b090b030812265448575f4855">[email protected]</a>/moment.min.js"></script>

Answer 8

If you're looking to achieve this, I recommend utilizing the momentjs library.

By default, moment will parse and display in local time. To parse or display a moment in UTC, simply use moment.utc() instead of moment()

var t = moment.utc("2018-01-01T18:00:00Z").format("HH:mm")
console.log(t)

<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="660b090b030812265448575f4855">[email protected]</a>/moment.min.js"></script>

Answer 9

Answer №5

When I needed to extract the time from a date, this method proved to be effective:

let isoDate= '2020-09-28T15:27:15+05:30';
let result = isoDate.match(/\d\d:\d\d/);
console.log(result[0]);

The above code will only display the time portion of the isoDate, which is:

15:27

Answer 10

When I needed to extract the time from a date, this method proved to be effective:

let isoDate= '2020-09-28T15:27:15+05:30';
let result = isoDate.match(/\d\d:\d\d/);
console.log(result[0]);

The above code will only display the time portion of the isoDate, which is:

15:27

Answer 11

Answer №6

One way to extract specific information using regular expressions is by utilizing regex groups:

    const ISODateFormat = '2021-07-19T13:04:20.602Z';
    const regex = /([0-9]{4}-[0-9]{2}-[0-9]{2})?.([:0-9]+)/;
    console.log(ISODateFormat.match(regex));
    // the expected result should be: Array ["2021-07-19T13:04:20", "2021-07-19","13:04:20"]

Answer 12

One way to extract specific information using regular expressions is by utilizing regex groups:

    const ISODateFormat = '2021-07-19T13:04:20.602Z';
    const regex = /([0-9]{4}-[0-9]{2}-[0-9]{2})?.([:0-9]+)/;
    console.log(ISODateFormat.match(regex));
    // the expected result should be: Array ["2021-07-19T13:04:20", "2021-07-19","13:04:20"]

Answer 13

Answer №7

An ISO date format consists of either YYYY-MM-DDTHH:mm:ss.sssZ or ±YYYYYY-MM-DDTHH:mm:ss.sssZ, where the letter T signifies the time portion. To extract the date and time separately, first split the string based on the T character, with the initial half representing the date and the latter half indicating the time. Finally, split the time section using the period (.) to isolate the HH:MM:SS part:

const  dateTime = "2023-11-10T15:25:14.416+0000";
const [date, time] = dateTime.split('T');
const timeHHMMSS = time.split('.')[0];

console.log(`Date is ${date}`); // Date is: 2023-11-10
console.log(`Time is ${timeHHMMSS}`); // Time is: 15:25:14

Answer 14

An ISO date format consists of either YYYY-MM-DDTHH:mm:ss.sssZ or ±YYYYYY-MM-DDTHH:mm:ss.sssZ, where the letter T signifies the time portion. To extract the date and time separately, first split the string based on the T character, with the initial half representing the date and the latter half indicating the time. Finally, split the time section using the period (.) to isolate the HH:MM:SS part:

const  dateTime = "2023-11-10T15:25:14.416+0000";
const [date, time] = dateTime.split('T');
const timeHHMMSS = time.split('.')[0];

console.log(`Date is ${date}`); // Date is: 2023-11-10
console.log(`Time is ${timeHHMMSS}`); // Time is: 15:25:14

Guide on retrieving just the time from an ISO date format using JavaScript

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

Answer №7

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