Chrono Utils

Provides utility functions to manipulate chrono dates. Only NaiveDate is supported as of now. Support for naive and timezone aware DateTime coming soon.

The crate provides the following:

Transition APIs

Transition a chrono struct into a future or previous date using standardised methods like start_of_pred_iso8601_week() which provides the date on which the previous week starts. Such functions are provided for week, month and year.

Feature Matrix

| Feature | Status | | -------------- | --------- | | Transition APIs for NaiveDate | ✓ | | Transition APIs for Aware Dates | 𐄂 | | Transition APIs for NaiveDateTime | 𐄂 | | Transition APIs for Aware DateTime | 𐄂 |

Code Sample

```rust use chrono::NaiveDate; use chrono_utils::naive::DateTransitions;

let d = NaiveDate::fromymd(2019, 3, 31); asserteq!(d.startofsuccyear().unwrap(), NaiveDate::fromymd(2020, 1, 1));

let d1 = NaiveDate::fromymd(1996, 2, 23); asserteq!(d1.lastdayof_month(), 29);

let d2 = NaiveDate::fromymd(1999, 10, 17); asserteq!(d2.startofprediso8601week().unwrap(), NaiveDate::from_ymd(1999, 10, 4)); ```

Licence

Dual licensed under Apache 2.0 and MIT. (Same as Rust and chrono.)