dayjs-1-11-0

name	dayjs-1-11-0
description	Complete toolkit for date and time manipulation using Day.js 1.11, a minimalist 2kB library with Moment.js-compatible API. Use when parsing, validating, manipulating, and displaying dates in JavaScript applications requiring immutable operations, i18n support, and plugin extensibility.
version	0.1.0
author	Tangled <[e-mail]>
license	MIT
tags	["date","time","parsing","formatting","manipulation","i18n","plugins","immutable"]
category	utilities
external_references	["https://day.js.org/","https://github.com/iamkun/dayjs"]

Day.js 1.11

Overview

Day.js is a minimalist 2kB JavaScript library that parses, validates, manipulates, and displays dates and times for modern browsers and Node.js. It provides a largely Moment.js-compatible API while being immutable, chainable, and tree-shakeable. The core library ships with no plugins — functionality is extended on demand via a plugin system. Locales are loaded individually, keeping bundle size minimal.

Key characteristics:

• 2kB gzipped — significantly smaller than Moment.js (~30kB)
• Immutable — all mutating operations return new instances
• Chainable — fluent API for composed date operations
• I18n — 80+ locales, loaded on demand (none included by default)
• Plugin architecture — 30+ official plugins, extend only what you need
• Moment.js-compatible API — drop-in replacement patterns

import dayjs from 'dayjs'

dayjs('2018-08-08')                        // parse
dayjs().format('YYYY-MM-DD HH:mm:ss')      // display
dayjs().set('month', 3).month()            // get & set
dayjs().add(1, 'year')                     // manipulate
dayjs().isBefore(dayjs())                  // query

When to Use

• Parsing date strings, timestamps, or Date objects into a manipulable format
• Formatting dates for display (ISO 8601, custom patterns, localized output)
• Adding, subtracting, or comparing dates and times
• Getting or setting individual date components (year, month, day, hour, etc.)