date-fns/date-fns

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

36645 stars · 2002 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

date-fns is a modern JavaScript date utility library providing 200+ modular, immutable functions for parsing, formatting, and manipulating dates. It works in browsers and Node.js, uses native Date objects, and offers extensive locale support for internationalization.

Use cases

• format dates as strings in JavaScript
• parse and manipulate dates in Node.js
• add or subtract time from a date
• compare and sort dates
• format dates with international locales
• handle dates across time zones
• calculate differences between dates

When to choose

• you need a comprehensive, tree-shakeable date utility library for JavaScript or TypeScript
• you want immutable, pure functions that don't extend native Date objects
• you need internationalization with dozens of locales
• you want first-class time zone support

When to avoid

• you need a full calendar UI component rather than date utilities
• your project already standardizes on another date library like Day.js or Luxon
• you work in a non-JavaScript language

Facets

library · maturity stable

date-time internationalization developer-tools web-development browser cross-platform javascript typescript immutable tree-shaking timezones date-manipulation localization nodejs

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