Decision Workspace
jcalendar vs jiff vs chrono
Side-by-side comparison of Rust crates
36
jcalendar
growingv0.1.2
Japanese Calendar for Rust
70
jiff
growingv0.2.32
A date-time library that encourages you to jump into the pit of success. This library is heavily inspired by the Temporal project.
69
chrono
growingv0.4.45
Date and time library for Rust
Core Metrics
| jcalendar | jiff | chrono | |
|---|---|---|---|
| Health Score | 36 | 70 | 69 |
| Total Downloads | 3.8K | 139.1M | 673.2M |
| 30d Downloads | 0 | 9.9M | 29.4M |
| Dependents | 0 | 9.3K | 382.6K |
| Releases | 3 | 64 | 95 |
| Last Updated | 982d ago | 5d ago | 39d ago |
| Age | 2y 8m | 2y 4m | 11y 7m |
Health Breakdown
jcalendar
Maintenance
5
Quality
8
Community
6
Popularity
4
Documentation
13
jiff
Maintenance
19
Quality
13
Community
15
Popularity
8
Documentation
15
chrono
Maintenance
17
Quality
10
Community
19
Popularity
8
Documentation
15
Technical Details
| jcalendar | jiff | chrono | |
|---|---|---|---|
| Version | 0.1.2 | 0.2.32 | 0.4.45 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Unlicense OR MIT | MIT OR Apache-2.0 |
| Dependencies | 4 | 29 | 16 |
| Crate Size | 4KB | 768KB | 241KB |
| Features | 0 | 16 | 18 |
| Yanked % | 66.7% | 0.0% | 23.2% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | 1.70 | 1.62.0 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •jiff leads with a health score of 70/100, but none of the options score above 80.
- •chrono has the most downloads (673.2M), suggesting wider adoption.
- •chrono is depended on by 382.6K crates — strongest ecosystem trust.
- •⚠ jcalendar has not been updated in over a year.