dayjs
2KB immutable date time library alternative to Moment.js with the same modern API
A 2 kB Moment.js-compatible date library.
When to choose it: You want Moment's familiar API in a tiny, immutable package — a common drop-in replacement.
- + Tiny
- + Moment-like API
- + Immutable
- - Features split across plugins
- - Not fully tree-shakable
- Latest version
- 1.11.21
- Monthly downloads
- 205,779,367
- GitHub stars
- 48,656
- Minified + gzip
- 3.0 kB
- Dependencies
- 0
- License
- MIT
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Data from npm, Bundlephobia and GitHub. Last updated 2026-06-02.