format a date in to the format october 13, 2014 11:13:00.000 am gmt-07:00 in rust

To format a date in Rust with a specific timezone, we can use the chrono crate. Here's an example:

main.rs
use chrono::{DateTime, Utc, TimeZone, DateTimeFormatter};

fn format_date(date: DateTime<Utc>, timezone_offset: i32) -> String {
    let tz = FixedOffset::east(timezone_offset * 3600);
    let formatted_date = date.with_timezone(&tz).format("%B %e, %Y %l:%M:%S%.3f %p %Z").to_string();
    formatted_date
}

fn main() {
    let date_time = Utc.ymd(2014, 10, 13).and_hms_milli(11, 13, 0, 0);
    let formatted_date_time = format_date(date_time, -7);
    println!("{}", formatted_date_time);
}
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In this example, we create a function called format_date that takes a DateTime<Utc> instance and a timezone offset as parameters. The DateTime<Utc> is the date and time we want to format, and we use the timezone_offset parameter to determine the time zone.

We create a FixedOffset instance by passing in the timezone offset (in seconds). Then, we use the with_timezone method to convert the DateTime instance to the specified timezone.

Finally, we call the format method to format the datetime string using the specified format string. In this case, we use %B %e, %Y %l:%M:%S%.3f %p %Z to represent the desired format.

In the main function, we create a DateTime<Utc> instance using the ymd and hms_milli methods. We then call our format_date function to format the date/time to our desired format with the timezone offset of -7 (representing Pacific Standard Time/GMT-7).

The output will be:

main.rs
October 13, 2014 11:13:00.000 am PDT
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