Rust-chrono =========== [![Rust-chrono on Travis CI][travis-image]][travis] [travis-image]: https://travis-ci.org/lifthrasiir/rust-chrono.png [travis]: https://travis-ci.org/lifthrasiir/rust-chrono Date and time handling for Rust. ```rust // find out if the doomsday rule is correct! use chrono::{Weekday, NaiveDate, naive}; use std::iter::range_inclusive; for y in range_inclusive(naive::date::MIN.year(), naive::date::MAX.year()) { // even months let d4 = NaiveDate::from_ymd(y, 4, 4); let d6 = NaiveDate::from_ymd(y, 6, 6); let d8 = NaiveDate::from_ymd(y, 8, 8); let d10 = NaiveDate::from_ymd(y, 10, 10); let d12 = NaiveDate::from_ymd(y, 12, 12); // nine to five, seven-eleven let d59 = NaiveDate::from_ymd(y, 5, 9); let d95 = NaiveDate::from_ymd(y, 9, 5); let d711 = NaiveDate::from_ymd(y, 7, 11); let d117 = NaiveDate::from_ymd(y, 11, 7); // "March 0" let d30 = NaiveDate::from_ymd(y, 3, 1).pred(); let weekday = d30.weekday(); let other_dates = [d4, d6, d8, d10, d12, d59, d95, d711, d117]; assert!(other_dates.iter().all(|d| d.weekday() == weekday)); } ``` Design Goals ------------ * 1-to-1 correspondence with ISO 8601. * Timezone-aware by default. * Space efficient. * Moderate lookup table size, should not exceed a few KBs. * Avoid divisions as much as possible. References ---------- * https://github.com/mozilla/rust/wiki/Lib-datetime * https://github.com/luisbg/rust-datetime/wiki/Use-Cases