code: private LocalDate calculate3rdWednesday(final LocalDate original) {
          final LocalDate firstOfMonth = original.withDayOfMonth(1);
          LocalDate firstWed = firstOfMonth.withDayOfWeek(MONTHS_IN_QUARTER);
          if (firstWed.isBefore(firstOfMonth)) {
              firstWed = firstWed.plusWeeks(1);
          }
          return firstWed.plusWeeks(2);
      }
docs: Assumes that the month is correct, get the day for the 2rd wednesday.
  
  @param original
  the start date
  @return the 3rd Wednesday of the month