Computus Easter calculation in Rust
Add this to your Cargo.toml:
[dependencies] computus = "2.0.0"
You can find when Easter Sunday is for a particular year with:
// For Gregorian calendars let easter = computus::gregorian(2016).unwrap(); assert_eq!((easter.month, easter.day), (3, 27)); // For Julian calendars let easter = computus::julian(2016).unwrap(); assert_eq!((easter.month, easter.day), (4, 18)); // With `chrono` feature #[cfg(feature = "chrono")] { use chrono::Datelike; let easter = computus::gregorian_naive(2023).unwrap(); assert_eq!((easter.month(), easter.day()), (4, 9)); } // With `jiff` feature #[cfg(feature = "jiff")] { use jiff::civil::Date; let easter = computus::gregorian_jiff_date(2023).unwrap(); assert_eq!((easter.month(), easter.day()), (4, 9)); }