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Parse A DateTime That Has A Time Zone With Rust's chrono Crate

Introduction

My Grimoire uses RFC 3339 timestamp strings1. They're like ISO 86012 but with a few more restrictions on them (e.g. years must be four digits).

This is the code I use to parse them with Rust's chrono3 crate looks like this:

The Code

---
[dependencies]
anyhow = "1.0.98"
chrono = "0.4.40"
---

use anyhow::Result;
use chrono::DateTime;

fn main() -> Result<()> {
  let time_string = "2025-04-14T15:58:47-04:00";
  let date = DateTime::parse_from_rfc3339(
    time_string
  )?;
  println!("{}", date.to_rfc2822());
  Ok(())
}
Output:
Mon, 14 Apr 2025 15:58:47 -0400
-- end of line --

Footnotes

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