How to install the julianday crate // Lib.rs

Adding `julianday` library as a dependency

Run this command in a terminal, in your project's directory:

cargo add julianday

To add it manually, edit your project's Cargo.toml file and add to the [dependencies] section:

julianday = "1.2.0"

The julianday library will be automatically available globally. Read the julianday library documentation.

Back to the crate overview.

Readme

Julian day is the continuous count of days since the beginning of the Julian Period. This crate implements a method to convert a JulianDay to and from the chrono's NaiveDate.

Julian Day (`JD`)

use chrono::NaiveDate;
use julianday::JulianDay;

fn main() {
    let naivedate = NaiveDate::from_ymd(2020, 2, 18);
    let julianday = JulianDay::from(naivedate);
    let date = julianday.to_date();
}

Modified Julian Day (`MJD`)

use chrono::NaiveDate;
use julianday::ModifiedJulianDay;

fn main() {
    let naivedate = NaiveDate::from_ymd(2020, 2, 18);
    let mjd = ModifiedJulianDay::from(naivedate);
    let date = mjd.to_date();
}

Adding julianday library as a dependency

Adding `julianday` library as a dependency