Decision Workspace
chronologic vs hifitime vs chrono
Side-by-side comparison of Rust crates
48
chronologic
growingv0.7.12
Time constraint reasoning (scheduling...)
70
hifitime
stablev4.2.6
Ultra-precise date and time handling in Rust for scientific applications with leap second support
69
chrono
growingv0.4.44
Date and time library for Rust
Core Metrics
| chronologic | hifitime | chrono | |
|---|---|---|---|
| Health Score | 48 | 70 | 69 |
| Total Downloads | 65.5K | 771.0K | 516.3M |
| 30d Downloads | 750 | 57.1K | 36.4M |
| Dependents | 0 | 515 | 278.0K |
| Releases | 36 | 64 | 94 |
| Last Updated | 74d ago | 4d ago | 32d ago |
| Age | 3y 9m | 8y 2m | 11y 4m |
Health Breakdown
chronologic
Maintenance
15
Quality
8
Community
6
Popularity
6
Documentation
13
hifitime
Maintenance
19
Quality
18
Community
13
Popularity
7
Documentation
13
chrono
Maintenance
17
Quality
10
Community
19
Popularity
8
Documentation
15
Technical Details
| chronologic | hifitime | chrono | |
|---|---|---|---|
| Version | 0.7.12 | 4.2.6 | 0.4.44 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | MPL-2.0 | MIT OR Apache-2.0 |
| Dependencies | 3 | 21 | 16 |
| Crate Size | 102KB | 159KB | 241KB |
| Features | 0 | 5 | 18 |
| Yanked % | 97.2% | 3.1% | 23.4% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | 1.62.0 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •hifitime leads with a health score of 70/100, but none of the options score above 80.
- •chrono has the most downloads (516.3M), suggesting wider adoption.
- •chrono is depended on by 278.0K crates — strongest ecosystem trust.
- •chronologic, chrono are pre-1.0 — API may change.