code: @Override
      public Calendar now() {
          final int birthYear = 2015;
          final int birthDay = 14;
          final Calendar referenceCalendar = Calendar.getInstance(Locale.US);
          referenceCalendar.set(Calendar.YEAR, birthYear);
          referenceCalendar.set(Calendar.MONTH, Calendar.DECEMBER);
          referenceCalendar.set(Calendar.DAY_OF_MONTH, birthDay);
          return referenceCalendar;
      }
docs: {@inheritDoc}