protected void calcDIR_LstAccDate() {
        byte[] bTemp = new byte[2];
        for (int i = 18;i < 20; i++) {
            bTemp[i-18] = bytesOfFAT32Element[i];
        }     
        Integer temp = byteArrayToInt(bTemp);
        DIR_LstAccDate = (temp & 0b11111) + "." + ((temp & 0b111100000) >> 5) + "." + (((temp & 0b1111111000000000) >> 9) + 1980);
    }