Java – how do I know if locale is in 12 or 24 hour format?

See English answers > How do I find out why a locale uses 12 or 24 hour time in Java? 3

I found this:

if (android.text.format.DateFormat.is24HourFormat(getApplicationContext()))

However, this returns a Boolean value based on the system instead of locale This means that if the user uses English for the application but uses a 24-hour format mobile phone, it will return true

How can I get a Boolean value telling me whether the format used is 24 hours? I'm not using joda Thank you in advance

It seems that some people in the editor think this is a repetition. I have read the post you provided as the source of the repetition mark It can only be solved by approximate workaround or providing date. It is current most of the time, even if it is in the corresponding format

As you can guess, if I want a way to know whether I should use the 12 hour format according to locale, that means I don't need dates or anything. I already have it, but confirm the format I must use

Solution

Take a look at the actual Android text. format. DateFormat. The source code of the is24hourformat method, and you will see how they do it:

Locale locale = context.getResources().getConfiguration().locale;

    java.text.DateFormat natural =
        java.text.DateFormat.getTimeInstance(
            java.text.DateFormat.LONG,locale);

    if (natural instanceof SimpleDateFormat) {
        SimpleDateFormat sdf = (SimpleDateFormat) natural;
        String pattern = sdf.toPattern();
        if (pattern.indexOf('H') >= 0) {
            value = "24";
        } else {
            value = "12";
        }
    } else {
        value = "12";
    }

Therefore, you can adjust it according to the way you get the locale