Android DatePickerDialog creates random wrong month

Question

When I implement a DatePickerDialog it display the correct date but when I click OK to set the date in an EditText I get a date String with incorrect month, which seems to be random each time I try

final Calendar calendar = Calendar.getInstance();

final DatePickerDialog.OnDateSetListener dateListener = new DatePickerDialog.OnDateSetListener() {
    @Override
    public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
        calendar.set(Calendar.YEAR,year);
        calendar.set(Calendar.MONTH,month);
        calendar.set(Calendar.DAY_OF_MONTH,dayOfMonth);
        SimpleDateFormat dateFormat = new SimpleDateFormat("dd-mm-yyyy", Locale.getDefault());
        String newDate = dateFormat.format(new Date(calendar.getTimeInMillis()));
        Log.e(TAG,"date: "+newDate);
        mTextSetDate.setText(newDate);
    }
};

And to display the DatePickerDialog, I have this function

private void showDatePicker(DatePickerDialog.OnDateSetListener listener, Calendar cal){
new DatePickerDialog(AddNewRecordActivity.this,listener,
        cal.get(Calendar.YEAR),cal.get(Calendar.MONTH),cal.get(Calendar.DAY_OF_MONTH)).show();

}

and here's the log output

09-26 08:20:13.511 4240-4240/tz.co.neelansoft.personalaccountant E/AddNewRecordActivity: date: 26-18-2018

I included some screenshot of datepickerdialog and date string