date format parses the 12th hour value (hh) to 00

date format parses the 12th-hour value (hh) to 00 while applying the format as "yyyy-MM-dd'T'hh:mm:ss" but it does not parse the 13th hour to 1 PM. PFB the sample code piece.

Date testDate = DateUtil.parse("yyyy-MM-dd'T'hh:mm:ss", "2010-07-09T12:50:58");

can you please let me know why t开发者_开发技巧his is converting so?

You should use HH instead of hh. The former is for 24-hour clock, the latter for a 12-hour clock.

See the javadoc for SimpleDateFormat.

EDIT: Note that the problem may be at the other end too. To get the hour from a java.util.Date, you can set it on a Calendar object and call get(Calendar.HOUR_OF_DAY). Note that get(Calendar.HOUR) will give you the 12-hour rather than the 24-hour.

    DateFormat inputFormatter = new SimpleDateFormat(
            "yyyy-MM-dd'T'hh:mm:ss");
    Date date = inputFormatter.parse("2010-07-09T13:50:58");
    DateFormat outputFormatter = new SimpleDateFormat(
            "yyyy-MM-dd'T'hh:mm:ss a");
    System.out.println(outputFormatter.format(date));

The output is:

2010-07-09T01:50:58 PM

It reads in 13 fine, and outputs 01 (PM).

As you are reading a time with timezone and printing with your locale, the system transforms time to your local in Uruguay.

You need to create a calendar with custom locale and timezone in order to keep it consistent:

    public static void main(String[] args) throws ParseException {
    String dateStr = "Tue, 04 Aug 2015 12:09:10 GMT";
    SimpleDateFormat format = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.ENGLISH);
    Date d = format.parse(dateStr);
    System.out.println("The current time is: " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds());
    Calendar cal = new GregorianCalendar(TimeZone.getTimeZone("GMT"), Locale.ENGLISH);
    cal.setTime(d);
    System.out.println("The current time is: " + cal.get(Calendar.HOUR_OF_DAY) + ":" + cal.get(Calendar.MINUTE) + ":" + cal.get(Calendar.SECOND));
}