Module chrono

Available on crate feature chrono only.

Conversions to and from chrono’s Duration, NaiveDate, NaiveTime, DateTime<Tz>, FixedOffset, and Utc.

Setup

To use this feature, add this to your Cargo.toml:

[dependencies]
chrono = "0.4"
pyo3 = { version = "0.23.1", features = ["chrono"] }

Note that you must use compatible versions of chrono and PyO3. The required chrono version may vary based on the version of PyO3.

Example: Convert a datetime.datetime to chrono’s DateTime<Utc>

use chrono::{DateTime, Duration, TimeZone, Utc};
use pyo3::{Python, PyResult, IntoPyObject, types::PyAnyMethods};

fn main() -> PyResult<()> {
    pyo3::prepare_freethreaded_python();
    Python::with_gil(|py| {
        // Build some chrono values
        let chrono_datetime = Utc.with_ymd_and_hms(2022, 1, 1, 12, 0, 0).unwrap();
        let chrono_duration = Duration::seconds(1);
        // Convert them to Python
        let py_datetime = chrono_datetime.into_pyobject(py)?;
        let py_timedelta = chrono_duration.into_pyobject(py)?;
        // Do an operation in Python
        let py_sum = py_datetime.call_method1("__add__", (py_timedelta,))?;
        // Convert back to Rust
        let chrono_sum: DateTime<Utc> = py_sum.extract()?;
        println!("DateTime<Utc>: {}", chrono_datetime);
        Ok(())
    })
}