How to Handle Different Number and Date Formats in Rust

Use the chrono crate to parse and format numbers and dates flexibly, as Rust's standard library lacks built-in support for complex date formats.

use chrono::{NaiveDate, NaiveDateTime, Datelike, Timelike};

fn main() {
    let date_str = "2023-10-05";
    let date = NaiveDate::parse_from_str(date_str, "%Y-%m-%d").unwrap();
    println!("Parsed: {}", date);
    println!("Formatted: {}", date.format("%d/%m/%Y"));
}

Add chrono = "0.4" to your Cargo.toml dependencies.

Rust doesn't handle different date formats out of the box, so you need a helper tool called chrono to read and write dates in any style you want. Think of it like a universal translator that converts messy date strings into a format your computer can understand and back again. You use it whenever you need to work with timestamps, calendars, or user input that involves dates.