Decision Workspace
dates-str vs icu_datetime vs icu_calendar
Side-by-side comparison of Rust crates
45
dates-str
growingv2.0.0
A minimal date formatting library. For if you don't need any fancy stuff.
72
icu_datetime
stablev2.2.0
Human-readable formatting of dates, times, and time zones in hundreds of locales
70
icu_calendar
stablev2.2.1
Date APIs for Gregorian and non-Gregorian calendars
Core Metrics
| dates-str | icu_datetime | icu_calendar | |
|---|---|---|---|
| Health Score | 45 | 72 | 70 |
| Total Downloads | 10.9K | 5.6M | 7.3M |
| 30d Downloads | 0 | 547.7K | 967.5K |
| Dependents | 0 | 166 | 300 |
| Releases | 9 | 24 | 28 |
| Last Updated | 478d ago | 54d ago | 53d ago |
| Age | 3y 4m | 5y 7m | 5y |
Health Breakdown
dates-str
Maintenance
5
Quality
21
Community
4
Popularity
5
Documentation
10
icu_datetime
Maintenance
18
Quality
19
Community
17
Popularity
8
Documentation
10
icu_calendar
Maintenance
16
Quality
18
Community
18
Popularity
8
Documentation
10
Technical Details
| dates-str | icu_datetime | icu_calendar | |
|---|---|---|---|
| Version | 2.0.0 | 2.2.0 | 2.2.1 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✓ Yes |
| License | MIT | Unicode-3.0 | Unicode-3.0 |
| Dependencies | 0 | 30 | 22 |
| Crate Size | 7KB | 206KB | 813KB |
| Features | 0 | 10 | 11 |
| Yanked % | 0.0% | 0.0% | 3.6% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | 1.86 | 1.86 |
| Owners | 1 | 2 (team) | 2 (team) |
Links
Quick Verdict
- •icu_datetime leads with a health score of 72/100, but none of the options score above 80.
- •icu_calendar has the most downloads (7.3M), suggesting wider adoption.
- •icu_calendar is depended on by 300 crates — strongest ecosystem trust.
- •⚠ dates-str has not been updated in over a year.