Date and time

12-month change compares the average of the last 4 weeks of downloads with the first 4 weeks of the 52-week series. Gzip size is for the whole package, as measured by Bundlephobia. "-" means the value has not been fetched.

• @colyseus/clockA simple clock/ticker implementation to track elapsed/delta time.
• @js-joda/locale_en-usprebuilt js-joda locale package for locales: en,en-US
• ember-momentMoment.js template helpers Ember.js
• timestamp-nanoTimestamp for 64-bit time_t, nanosecond precision and strftime
• datejsDateJS is the most full-featured, internationalized, open-source JavaScript Date Library.
• ts-luxonTypescript version of the "Immutable date wrapper"
• luxon-business-daysLuxon plugin to manipulate time through business days
• @hebcal/hdateconverts between Hebrew and Gregorian dates using Rata Die (R.D.) algorithm by Dershowitz and Reingold
• moment-parseformatA moment.js plugin to extract the format of a date/time string
• timezoneSmall, elegant, Olson educated, timezone aware date math and `strftime` date formatting in pure JavaScript with no dependendcies for Node.js and the browser. Timezone uses the Olson/IANA timezone database. Timezone is aware of every clock transition in th
• nunjucks-date-filterA 'date' filter for Nunjucks implementing moment.js
• ember-cli-moment-shimBrings moment and moment-timezone into your Ember applications
• moment-businessMethods to work with week days and weekends in moment.
• datebookGenerates URLs and ICS file content for adding events to popular calendar apps.
• timezones.jsonFull list of UTC timezones
• natsortJavascript natural sort algorithm with unicode support.
• timezoned-dateConstructors and objects behave exactly like built-in Date; the TZ offset is configurable
• date-time-format-timezoneSurgically polyfills timezone support in Intl.DateTimeFormat API
• nanosecondsConvert the process.hrtime() array to a single nanoseconds value. This makes it easier to diff times.
• format-durationConvert a number in milliseconds to a standard duration string.
• @hapi/joi-dateJoi extension for dates
• cldrLibrary for extracting data from CLDR (the Unicode Common Locale Data Repository)
• @blueprintjs/datetime2Re-exports of @blueprintjs/datetime APIs
• datetimeDate and time formatting
• cron-fastFast and tiny JavaScript/TypeScript cron parser with timezone support - works in Node.js, Deno, Bun, Cloudflare Workers, and browsers. Zero dependencies.
• metascraper-dateMetascraper rule to extract the date from HTML using Open Graph, JSON-LD, and fallback selectors.
• node-datetimeExtended Date object for javascript. 1. Handles offests by days and hours. 2. Built-in formatting function. 3. Time based value calculation.
• @countrystatecity/countriesOfficial countries, states, and cities database with iOS/Safari support and minimal bundle size
• moment-roundDate rounding for Moment.js
• moment-strftimemoment-strftime adds strftime to Moment.js
• excel-date-to-jsConvert Excel date in integer format into JS date. Dates are stored as numbers in Excel and count the number of days since January 0, 1900 (1900 standard, for mac it is 1904, which means January 0, 1904 is the start date). Times are handled internally as
• browser-interaction-time<p align="left"> <img src="https://raw.githubusercontent.com/atlassian/browser-interaction-time/master/bit.png" width="200" /> </p>
• date-virEasy and explicit dates and times.
• libphonenumber-geo-carrierThis library includes the geocoding, carrier mapping and timezone mapping functionalities that are available in some of googles libphonenumber libraries but not in libphonenumber-js (a port of libphonenumber).
• date-fns-holiday-usThe purpose of this project is to give an interface to work with holidays using date-fns
• time-cacheA key-value cache that puts a expiry date on its entries.
• cron-expression-validatorValidate cron expressions
• jest-dateCustom jest matchers to test dates
• nepali-date-converterA small Javascript/Typescript Library to convert English Date to Nepali and Vice Versa.
• moment-business-timeQuery and manipulate moment objects within the context of business/working hours
• @js-joda/locale_enprebuilt js-joda locale package for locales: en.*
• country-list-jsCountry data for 250 countries and territories: ISO 3166-1 codes, names, capitals, currencies, dialing codes, subdivisions, borders and IANA time zones. No dependencies.
• twixTwix.js allows you to work with date ranges
• moment-timezone-allParse and display moments in any timezone.
• decap-cms-widget-datetimeWidget for editing dates and times in Decap CMS.
• @abp/luxonABP Framework is a complete open-source infrastructure to create modern web applications by following the best practices and conventions of software development. This package is a part of the [ABP Framework](https://abp.io) and contains client-side files.
• @abp/momentABP Framework is a complete open-source infrastructure to create modern web applications by following the best practices and conventions of software development. This package is a part of the [ABP Framework](https://abp.io) and contains client-side files.
• dayjs-ext2KB immutable date time library alternative to Moment.js with the same modern API
• jewish-dateConverts Gregorian dates to Hebrew dates and vice versa.
• netlify-cms-widget-dateWidget for editing dates in Netlify CMS.

• date-fns vs dayjs
• date-fns vs luxon
• dayjs vs moment
• date-fns vs moment
• luxon vs dayjs
• moment vs luxon
• date-fns-tz vs @js-joda/core