English | 简体中文 | 日本語 | Português Brasileiro | 한국어 | Español (España) | Русский | Türkçe | සිංහල | עברית
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.
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 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')
dayjs().format('{YYYY} MM-DDTHH:mm:ss SSS [Z] A')
dayjs().set('month', 3).month()
dayjs().add(1, 'year')
dayjs().isBefore(dayjs())
📚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'
dayjs.locale('es')
dayjs('2018-05-05').locale('zh-cn').format()
📚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'
dayjs.extend(advancedFormat)
dayjs().format('Q Do k kk X x')
📚Plugin List
Usage Trend
Support this project by becoming a sponsor. Your logo will show up here with a link to your website.
[Become a sponsor via Github] [Become a sponsor via OpenCollective]
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.