Date manipulation: Difference between revisions

=={{header|Rust}}==

<lang rust>

use chrono::prelude::*;

use chrono::Duration;

fn main() {

// Chrono allows parsing time zone abbreviations like "EST", but

// their meaning is ignored due to a lack of standardization.

//

// This solution compromises by augmenting the parsed datetime

// with the timezone using the IANA abbreviation.

let ndt =

NaiveDateTime::parse_from_str("March 7 2009 7:30pm EST", "%B %e %Y %l:%M%P %Z").unwrap();

// add TZ manually

let dt = chrono_tz::EST.from_local_datetime(&ndt).unwrap();

println!("Date parsed: {:?}", dt);

let new_date = dt + Duration::hours(12);

println!("+12 hrs in EST: {:?}", new_date);

println!(

"+12 hrs in CET: {:?}",

new_date.with_timezone(&chrono_tz::CET)

);

}

</lang>

{{out}}

<pre>

Date parsed: 2009-03-07T19:30:00EST

+12 hrs in EST: 2009-03-08T07:30:00EST

+12 hrs in CET: 2009-03-08T13:30:00CET

</pre>