date-fns

What is date-fns?

The date-fns npm package provides a comprehensive, yet simple and consistent toolset for manipulating JavaScript dates in a browser & Node.js. It offers a variety of functions to parse, validate, manipulate, and format dates.

What are date-fns's main functionalities?

Parsing Dates

Parse strings in ISO format to JavaScript Date objects.

const parseISO = require('date-fns/parseISO');
const result = parseISO('2023-04-12');

Formatting Dates

Format Date objects into strings with a given format.

const format = require('date-fns/format');
const result = format(new Date(2023, 3, 12), 'yyyy-MM-dd');

Comparing Dates

Compare two dates to determine if one comes before the other.

const isBefore = require('date-fns/isBefore');
const result = isBefore(new Date(2023, 3, 12), new Date(2023, 3, 13));

Manipulating Dates

Perform date calculations such as adding or subtracting time spans.

const addDays = require('date-fns/addDays');
const result = addDays(new Date(2023, 3, 12), 10);

Validating Dates

Check if a date is valid.

const isValid = require('date-fns/isValid');
const result = isValid(new Date('2023-04-12'));

Other packages similar to date-fns

moment

Moment.js is a legacy project, now in maintenance mode, which provides similar functionalities for parsing, validating, manipulating, and formatting dates. It's more object-oriented and mutable compared to the functional and immutable design of date-fns.

dayjs

Day.js is a lightweight date library that offers a similar API to Moment.js but with a smaller footprint. It is immutable and chainable, like date-fns, but with a different plugin system for extending functionality.

luxon

Luxon is a powerful, modern, and chainable library for working with dates and times. It offers a rich set of features for parsing, formatting, manipulating, and querying dates. It's built on the Intl API and provides time zone support out of the box, which is more comprehensive than date-fns's approach to time zones.

README

☣️ Warning: This branch is used to generate documentation from v1 branch. Don't merge or delete it.

See master for the actual date-fns version.

See v1 branch for the latest v1 version.

Changelog

[1.29.0] - 2017-10-11

Fixed

• Fixed Italian translations for formatDistance. (see the issue: #550; see the PR: #552) Thanks to @giofilo!

Added

• Hungarian locale (hu) (thanks to László Horváth @horvathlg)

• Slovenian locale (sl) (thanks to Adam Stradovnik @Neoglyph)

• Added step to eachDay function. Thanks to @BDav24. See PR #487.