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. ```js 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 --- ## Getting Started ### Documentation You can find more details, API, and other docs on [day.js.org](https://day.js.org/) website. ### Installation ```console npm install dayjs --save ``` 📚[Installation Guide](https://day.js.org/docs/en/installation/installation) ### API It's easy to use Day.js APIs to parse, validate, manipulate, and display dates and times. ```javascript 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](https://day.js.org/docs/en/parse/parse) ### I18n Day.js has great support for internationalization. But none of them will be included in your build unless you use it. ```javascript 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](https://day.js.org/docs/en/i18n/i18n) ### Plugin A plugin is an independent module that can be added to Day.js to extend functionality or add new features. ```javascript 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](https://day.js.org/docs/en/plugin/plugin) ### Usage Trend

## Sponsors Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor via Github](https://github.com/sponsors/iamkun/)] [[Become a sponsor via OpenCollective](https://opencollective.com/dayjs#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](./LICENSE).

	Stars	Issues	Version	Updated	Created
date.js	1,480	52	0.3.3	6 years ago	11 years ago
dayjs	45,810	950	1.11.11	7 days ago	6 years ago
express	63,852	192	4.19.2	a month ago	13 years ago
luxon	14,890	175	3.4.4	6 months ago	7 years ago
moment			2.30.1	4 months ago	13 years ago

date.js vs dayjs vs express vs luxon vs moment

Downloads in past1 Month3 Months6 Months1 Year2 Years5 YearsAll time

Stats

Popular Searches

Sick of boring JavaScript newsletters?

Downloads in past