Android calender

I wanted to know if to spend the day the month and the year with the calender would be that way whenever I try to activate the schedule does not come right ends up activating for the same day

        Calendar calNoww = Calendar.getInstance();
        Calendar calSett = (Calendar) calNoww.clone();

        calSet.set(Calendar.YEAR, a.getVenciano());
        calSet.set(Calendar.MONTH, a.getVencimes());
        calSet.set(Calendar.DAY_OF_MONTH, a.getVencidia());
        calSet.set(Calendar.HOUR_OF_DAY, 7);
        calSet.set(Calendar.MINUTE, 0);
        calSet.set(Calendar.SECOND, 0);
        calSet.set(Calendar.MILLISECOND, 0);
        day(calSett);



 public void day(Calendar targetCall)
    {
    Toast.makeText(this, "Alarm is set at" + targetCall.getTime(),
            Toast.LENGTH_LONG).show();
    Intent intent = new Intent(getBaseContext(), SegundaNotiAguaCasa.class);

    PendingIntent pendingintent = PendingIntent.getBroadcast(getBaseContext(), 1, intent, 0);
    AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);

    alarmManager.set(AlarmManager.RTC_WAKEUP, targetCall.getTimeInMillis(), pendingintent);
}