Java JFormattedTextfield time formatting

Question

I got some troubles using time in my code:

txtDauer = new JFormattedTextField();
txtDauer.setFormatterFactory(new DefaultFormatterFactory(
    new DateFormatter(DateFormat.getTimeInstance())));

When I use setValue(0) to the above FormattedTextfield the textfield shows 01:00:00 instead of 00:00:00.

The same problem occurs also at another line of the code with this method:

public static String convertLongToString(Long time) {
    String strtime = new SimpleDateFormat("HH:mm:ss").format(time);
    return strtime;
}

Using this method with "0" it returns strtime = "01:00:00".

d1e · Accepted Answer · 2012-02-28T15:03:43.950

2

The problem is the TimeZone, your default computer's TimeZone is GMT +1.

The solution is setting GMT to +0:

DateFormat df = new SimpleDateFormat("HH:mm:ss");
df.setTimeZone(TimeZone.getTimeZone("GMT"));

Run and preview.

edited Feb 28 '12 at 15:03

answered Feb 28 '12 at 14:49

d1e

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score 1 · Answer 2 · edited May 23 '17 at 11:53

1

For Date, Date & Time or Time use JSpinner with SpinnerDateModel, example about using SimpleDateFormat

edited May 23 '17 at 11:53

Community

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answered Feb 28 '12 at 14:33

mKorbel

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Unfortunately, I cannot replace my JFormattedTextfield with a JSpinner for 2 reasons: first, the textfield is not editable by the user and second its in fact a timer which can be controlled with start, pause and stop buttons. But anyway, thanks for your effort. – andyRandy Feb 28 '12 at 14:58

Java JFormattedTextfield time formatting

2 Answers2

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