@Test
public void testFormatCcsdsUtcMillisFormat() {

    final GregorianCalendar calendar = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
    calendar.set(Calendar.YEAR, 2010);
    calendar.set(Calendar.DAY_OF_YEAR, 1);
    calendar.set(Calendar.HOUR_OF_DAY, 0);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.MILLISECOND, 46800000);
    assertEquals("2010-01-01T13:00:00.000Z", TimeUtil.formatCcsdsUtcMillisFormat(calendar.getTime()));
}