Top 10 date-formatting Open-Source Projects

• dayjs

  97 45,745 6.9 JavaScript

  ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API

Project mention: The Day.js Dilemma: How Should We Handle OSS Maintainers Going MIA? | news.ycombinator.com | 2024-04-12

As web developers, we heavily rely OSS packages. One popular example is Day.js, a JS lib for parsing, validating, manipulating, and formatting dates. It's a widely-used alternative to Moment, with over 17mil weekly downloads on npm.

A critical bug was discovered in Day.js (see: https://github.com/iamkun/dayjs/pull/2118) causing incorrect date manipulation (add, subtract) when in UTC TZ. This could have severe implications for any project relying on Day.js for date-related functionality. However, the maintainer of the project appears to be unresponsive, leaving the bug unresolved and the future of the library uncertain.

This raises some important questions for our community:

- At what point should we consider a widely-used OSS project "abandoned" if the maintainer is unresponsive?

- Is forking the project the best solution, or should we first try to reach out to the maintainer through other channels?

- Are there established community guidelines around responsiveness expectations for widely-used OSS projects?

- What are successful examples of community-driven forks or maintenance after a maintainer stepped away?

I am very aware that many of these developers give their spare time for free for these projects, with little or no payment, and I am very thankful for all their work. This developer does get some money (a small amount?) through OpenCollective, and possibly also works for a company (in China?) that makes a UI library, which I think uses Day.js internally.

• SwiftDate

  2 7,524 0.0 Swift

  🐔 Toolkit to parse, validate, manipulate, compare and display dates, time & timezones in Swift.

Project mention: Question about Apple's review | /r/iOSProgramming | 2023-05-17

The 3rd party library I use GRDB SwiftyUserDefaults Kingfisher SwiftDate Popovers

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• spacetime

  2 3,959 7.5 JavaScript

  A lightweight javascript timezone library

• Chronology

  6 2,266 8.9 Swift

  Robust and type-safe date and time calculations for Swift

• next-intl

  6 1,768 9.6 TypeScript

  Internationalization (i18n) for Next.js that gets out of your way. 🌐

Project mention: Implementing Internationalization (i18n) in Next.js 14 using App Router | dev.to | 2024-04-17

next-intl Library: https://github.com/amannn/next-intl

• dateutils

  4 591 6.3 C

  nifty command line date and time utilities; fast date calculations and conversion in the shell

Project mention: 🗓 date-operations: A package for common date operations [Package on PyPy] | /r/Python | 2023-05-17

You might be interested in this: https://github.com/hroptatyr/dateutils

• ezTime

  2 314 0.0 C++

  ezTime — pronounced "Easy Time" — is a very easy to use Arduino time and date library that provides NTP network time lookups, extensive timezone support, formatted time and date strings, user events, millisecond precision and more.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• timezone-converter

  1 13 4.2 Python

  Whole-day timezone comparison

• distance-of-time

  0 10 0.0 Haskell

  Generate readable distances between times.

  

• rose-formatter

  1 5 0.0 JavaScript

  A port of Excel's numerical formatting, providing versatile text representation for numbers, dates and times.

  

date-formatting related posts

• Implementing Internationalization (i18n) in Next.js 14 using App Router
  2 projects | dev.to | 17 Apr 2024
• The Day.js Dilemma: How Should We Handle OSS Maintainers Going MIA?
  2 projects | news.ycombinator.com | 12 Apr 2024
• How next-intl Works
  2 projects | dev.to | 28 Mar 2024
• Best date library to handle timezones in React Native?
  3 projects | /r/reactnative | 5 Dec 2023
• Everything you need to know about Date in Programming
  2 projects | dev.to | 28 Oct 2023
• is there a date calculate script/libary ?
  2 projects | /r/learnjavascript | 11 Jul 2023
• What library do you use to handle dates?
  2 projects | /r/learnjavascript | 9 Jun 2023
• A note from our sponsor - SurveyJS
  surveyjs.io | 25 Apr 2024

  With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js. Learn more →

Index

Sponsored

Power Real-Time Data Analytics at Scale

Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

www.influxdata.com