Time formatting on en_US locale with '%X' not expected

[dmatos2012]

Hi all,
I am trying to format some dates, based on the user's locale, therefore I am using the localized base functions. However, when doing a Display of date, I get unexpected result, or maybe I am missing something?

platform: linux (ubuntu 20.04)
chrono version: 0.4.31

use chrono::prelude::*;
fn main() {
    let locale_nl = Locale::nl_NL;
    let locale_us = Locale::en_US;
    let local: DateTime<Local> = Local::now();

    let fmt_time_nl = local.format_localized("%X", locale_nl);
    let fmt_time_us = local.format_localized("%X", locale_us);
    let fmt_date_nl = local.format_localized("%x", locale_nl);
    let fmt_date_us = local.format_localized("%x", locale_us);
    println!("Time NL: {}", fmt_time_nl);
    println!("Time US: {}", fmt_time_us);
    println!("Date NL: {}", fmt_date_nl);
    println!("Date US: {}", fmt_date_us);

    ....
    
}

Yields the following output:

Time NL: 20:34:51
Time US: 08
Date NL: 02-11-23
Date US: 11/02/2023

Thus, date seems fine, but not time.

I saw that I could do '%r' for 12 hour clock time(us locale), which would yield the correct result, and for nl_NL it would fallback to %X, but Displaying just 08 as time seems unexpected. I would expect to also get mins and secs, not only h.

Thanks for your time!

[pitdicker]

The problem here is that for en_US T_FMT is defined using T_FMT_AMPM.
I made a workaround before for D_T_FMT is defined using other locale-specific strings in chronotope/pure-rust-locales#5. We need to extend that to T_FMT, and maybe T_FMT_AMPM. I'll have a look.