jk-gan
aion
Rust

A friendly Rust utility crate for duration and datetime

Last updated Apr 7, 2026
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Rust 100.0%
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README

Aion

Aion is a utility crate, inspired by rails, that allows you to write Duration and DateTime in a friendly way:
// Easily represent a chrono::Duration
let two_days = 2.days();
let attention_span = 1.seconds();

// Add or subtract durations from the current time (UTC) let now = Utc::now(); let threehoursfrom_now = now + 3.hours(); let twohoursfromnow = 2.hours().fromnow(); let last_week = 7.days().ago(); // or 1.weeks().ago()

// More complex DateTimes can be represented using before() and after() methods let christmas = Utc.ymd(2020, 12, 25).and_hms(0, 0, 0); let twoweeksbefore_christmas = 2.weeks().before(christmas); let boxing_day = 1.days().after(christmas);

Installation

Add this to your Cargo.toml file:
[dependencies]
aion = "0.2"

Example

The example is located in example folder. You can run it by using
cargo run --example example

Limitations

Currently this crate only will return DateTime<Utc>.

Acknowledgement

This crate is using chrono. Thanks for this awesome crate.
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