private double adjustNegativeDatesFromAccess(double value) {
      double fractionalPart = value % 1.0; // Negative if value is negative.
      double wholePart = value - fractionalPart;
      return wholePart + Math.abs(fractionalPart);
    }

    // Simplified equivalent implementation (avoids touching positive dates).
    private double adjustNegativeDatesFromAccess2(double value) {
      return value >= 0.0 ? value : (value - 2.0 * (value % 1.0));
    }

    public long fromDateDouble(double value) {
      long time = Math.round(adjustNegativeDatesFromAccess2(value) * MILLISECONDS_PER_DAY);
      time -= MILLIS_BETWEEN_EPOCH_AND_1900;
      time -= getFromLocalTimeZoneOffset(time);
      return time;
    }