Question

When I do this:

Calendar c = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
c.set(9999, 11, 31, 0, 0, 0);
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yy HH.mm.ss.SSSSSSSSS a");
String date = formatter.format(c.getTime());
assertEquals("31-Dec-99 00.00.00.000000000 AM", date);

I get this: 30-Dec-99 18.00.00.000000318 PM

How do I get the time I want?

Answer 1

You need to set the formatter’s time zone as well before performing the format.

formatter.setTimeZone(c.getTimeZone());

Otherwise it will use the platform default time zone.

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Unrelated to the concrete problem, the calendar doesn’t hold nano seconds, so that part may still be a bit off after formatting.