Convert time to timezone

use chrono::{DateTime, FixedOffset, Local, Utc};

fn main() {
  let local_time = Local::now();
  let utc_time = DateTime::<Utc>::from_utc(local_time.naive_utc(), Utc);
  let china_timezone = FixedOffset::east(8 * 3600);
  let rio_timezone = FixedOffset::west(2 * 3600);
  println!("Local time now is {}", local_time);
  println!("UTC time now is {}", utc_time);
  println!(
    "Time in Hong Kong now is {}",
    utc_time.with_timezone(&china_timezone)
  );
  println!("Time in Rio de Janeiro now is {}", utc_time.with_timezone(&rio_timezone));
}