code: public int get(long instant) {
          int value = getWrappedField().get(instant);
          if (value >= 0) {
              return value / iDivisor;
          } else {
              return ((value + 1) / iDivisor) - 1;
          }
      }
docs: Get the amount of scaled units from the specified time instant.
  
  @param instant  the time instant in millis to query.
  @return the amount of scaled units extracted from the input.