date-fns

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

36647 stars · 2041 forks observed · 2026-10-11

What it is AI-extracted, prompt v1, taxonomy v1, 2026-09-28, confidence 0.99

date-fns is a modern JavaScript date utility library offering over 200 pure functions for date manipulation. It works in both browser and Node.js environments and provides full TypeScript support.

Use cases

• format dates into custom strings
• parse date strings into Date objects
• calculate differences between dates
• add or subtract time intervals
• sort arrays of dates
• handle time zones with the tz extension
• localize date output for different locales

When to choose

• You need a lightweight, modular date library with tree‑shaking support.
• You prefer immutable, pure functions over mutable date objects.
• You are using TypeScript and want full type safety.
• You require built‑in internationalization (i18n) for many locales.

When to avoid

• You need extensive timezone databases beyond what the tz extension provides.
• You rely on Moment.js style mutable APIs.
• Your project demands a single massive date library with all locales bundled by default.

Facets

library · maturity active

date-time web-development backend browser modular immutable pure typescript i18n tree-shakable nodejs

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