2KB immutable date time library alternative to Moment.js with the same modern API
| Metric | date-fns | dayjs |
|---|---|---|
Weekly downloads | 73.5M | 45.2M |
Monthly downloads | 281.1M | 186.5M |
Yearly downloads | 1959.6M |
date-fns leads with 281.1M monthly downloads — 2x more popular
| 1553.0M |
GitHub stars | 37K | 49K |
Forks | 2K | 2K |
Open issues | 917 | 1208 |
Bundle (gzip) | 17.1kb | 3.0kb |
License | MIT | MIT |
Latest release | Sep 17, 2024 | Mar 12, 2026 |
dayjs has a larger community with 49K GitHub stars
dayjs is lighter at 3.0kb gzipped — 5.8x lighter
date-fns has fewer open issues (917 vs 1208)
date-fns and dayjs are neck and neck. Your choice should depend on your project's specific needs.