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Date & Time Libraries

Libraries for parsing, formatting, and manipulating dates, times, and calendars in programming languages.

28 projects

20,169 contributors

$29M

Moment

A JavaScript library for parsing, validating, manipulating, and formatting dates and times

Contributors

6,795

Organizations

1,875

Software value

$11M

date-fns

date-fns is a modern JavaScript date utility library that provides comprehensive functionality for parsing, formatting, manipulating, and computing dates and times. It offers a modular architecture, consistent APIs, and supports multiple locales while maintaining immutability.

Contributors

4,465

Organizations

1,155

Software value

$4.9M

D3

Bring data to life with SVG, Canvas and HTML. :bar_chart::chart_with_upwards_trend::tada:

Contributors

2,760

Organizations

821

Software value

$522K

Carbon PHP DateTime Library

Carbon is a PHP library that extends PHP's native DateTime class to provide additional functionality for working with dates and times. It offers a fluent interface for date manipulation, localization support, and human-readable date/time formatting.

Contributors

2,366

Organizations

595

Software value

$5.9M

dateutil

dateutil is a Python library that provides powerful extensions to the standard datetime module, offering functionality for parsing, formatting, and manipulating dates and times. It includes features like relative date arithmetic, timezone handling, and parsing of various date formats.

Contributors

1,084

Organizations

355

Software value

$546K

Arrow Python

Arrow is a Python library that provides a rich, expressive interface for working with dates, times, and timestamps. It offers a more intuitive way to create, manipulate, format and convert dates and times compared to Python's built-in datetime module.

Contributors

1,009

Organizations

321

Software value

$556K

time Rust

A Rust library providing comprehensive date and time functionality, including timezone support, formatting, parsing, and duration calculations

Contributors

626

Organizations

257

Software value

$1.2M

iCalendar

icalendar parser library for Python

Contributors

498

Organizations

176

Software value

$1.1M

ms

A tiny utility library for converting time strings (e.g., '2d', '1h', '10ms') into milliseconds and vice versa, commonly used in JavaScript applications for time parsing and formatting

Contributors

307

Organizations

146

Software value

$39K

Libical

Libical is an open source implementation of the iCalendar protocols and data formats. It provides a library for parsing, generating, and manipulating iCalendar data, supporting both C and C++ interfaces.

Contributors

259

Organizations

93

Software value

$2.9M

"Nager.Date"

Worldwide holidays (REST API), NuGet or docker container :earth_americas:

This project hasn't been onboarded to LFX Insights.

Holidays Everywhere

Open World Holidays Framework

This project hasn't been onboarded to LFX Insights.

Humanize

Python humanize functions

This project hasn't been onboarded to LFX Insights.

Joda Time for JavaScript

:clock2: Immutable date and time library for javascript

This project hasn't been onboarded to LFX Insights.

Luxon

⏱ A library for working with dates and times in JS

This project hasn't been onboarded to LFX Insights.

Moment.js

Parse, validate, manipulate, and display dates in javascript.

This project hasn't been onboarded to LFX Insights.

Noda Time

A better date and time API for .NET

This project hasn't been onboarded to LFX Insights.

PEP 615: Support for the IANA Time Zone Database in the Standard Library

Python package wrapping the IANA time zone database

This project hasn't been onboarded to LFX Insights.

TZInfo

TZInfo - Ruby Timezone Library

This project hasn't been onboarded to LFX Insights.

Timex

A complete date/time library for Elixir projects.

This project hasn't been onboarded to LFX Insights.

chrono

Date and time library for Rust

This project hasn't been onboarded to LFX Insights.

date-fns-tz

Complementary library for date-fns v2 adding IANA time zone support

This project hasn't been onboarded to LFX Insights.

dateFormat

A node.js package for Steven Levithan's excellent dateFormat() function.

This project hasn't been onboarded to LFX Insights.

java-time

Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8.

This project hasn't been onboarded to LFX Insights.

pretty-ms

Convert milliseconds to a human readable string: `1337000000` → `15d 11h 23m 20s`

This project hasn't been onboarded to LFX Insights.

time

A time library

This project hasn't been onboarded to LFX Insights.
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