code: public static Calendar getInstance()
      {
          return createCalendar(TimeZone.getDefault(), Locale.getDefault(Locale.Category.FORMAT));
      }
docs: Gets a calendar using the default time zone and locale. The
  <code>Calendar</code> returned is based on the current time
  in the default time zone with the default
  {@link Locale.Category#FORMAT FORMAT} locale.
  
  @return a Calendar.