@kingstinct/dayjs

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Fast 2kB alternative to Moment.js with the same modern API

Day.js is a minimalist JavaScript library that parses, validates, manipulates, and displays dates and times for modern browsers with a largely Moment.js-compatible API. If you use Moment.js, you already know how to use Day.js.

NOTE: This fork changes the behaviour of toJSON from Moment - specifically it returns a string including timezone (using format) where moment would return toISOString.

dayjs().startOf('month').add(1, 'day').set('year', 2018).format('YYYY-MM-DD HH:mm:ss');

• 🕒 Familiar Moment.js API & patterns
• 💪 Immutable
• 🔥 Chainable
• 🌐 I18n support
• 📦 2kb mini library
• 👫 All browsers supported

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Getting Started

Documentation

You can find for more details, API, and other docs on day.js.org website.

Installation

npm install dayjs --save

📚Installation Guide

API

It's easy to use Day.js APIs to parse, validate, manipulate, and display dates and times.

dayjs('2018-08-08') // parse

dayjs().format('{YYYY} MM-DDTHH:mm:ss SSS [Z] A') // display

dayjs().set('month', 3).month() // get & set

dayjs().add(1, 'year') // manipulate

dayjs().isBefore(dayjs()) // query

📚API Reference

I18n

Day.js has great support for internationalization.

But none of them will be included in your build unless you use it.

import 'dayjs/locale/es' // load on demand

dayjs.locale('es') // use Spanish locale globally

dayjs('2018-05-05').locale('zh-cn').format() // use Chinese Simplified locale in a specific instance

📚Internationalization

Plugin

A plugin is an independent module that can be added to Day.js to extend functionality or add new features.

import advancedFormat from 'dayjs/plugin/advancedFormat' // load on demand

dayjs.extend(advancedFormat) // use plugin

dayjs().format('Q Do k kk X x') // more available formats

📚Plugin List

Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]

Contributors

This project exists thanks to all the people who contribute.

Please give us a 💖 star 💖 to support us. Thank you.

And thank you to all our backers! 🙏

License

Day.js is licensed under a MIT License.

Changelog

1.10.4 (2021-01-22)

Bug Fixes

• Correct handling negative duration (#1317) (3f5c085)
• Improve Duration types (#1338) (4aca4b1)
• parse a string for MMM month format with underscore delimiter (#1349) (82ef9a3)
• Update Bengali [bn] locale (#1329) (02d96ec)
• update locale Portuguese [pt] yearStart (#1345) (5c785d5)
• update Polish [pl] locale yearStart (#1348) (e93e6b8)
• Update Slovenian [sl] relativeTime locale (#1333) (fe5f1d0)