long nextExecute = getNextExecute(t);

        if (nextExecute > System.currentTimeMillis()) {

            int tt = 12;

            intent = new Intent(context, BirthExecutor.class);
            intent.putExtra(Target.ROW_ID, tt);

            PendingIntent pending = PendingIntent.getBroadcast(context, 10, intent, PendingIntent.FLAG_NO_CREATE);

            if (pending != null) {

                manager.set(AlarmManager.RTC_WAKEUP, nextExecute, pending);

                BirthLog log = new BirthLog("Scheduled " + t.getFirstname() + " " + t.getLastname() + " on " + df.format(nextExecute));
                log_helper.insertLog(log);

            } else {

                BirthLog log = new BirthLog(t.getFirstname() + " " + t.getLastname() + " already active!");
                log_helper.insertLog(log);

            }

            intent = new Intent(LogAdapter.LOG_RECEIVE_ACTION);
            context.sendBroadcast(intent);

        }

public void updateTask(Target t) {

    if (t.getTime() == null || t.getRow() == null)
        return;

    Intent intent;
    SimpleDateFormat df = new SimpleDateFormat("HH:mm dd.MM.yyyy", Locale.US);

    long nextExecute = getNextExecute(t);

    if (nextExecute > System.currentTimeMillis()) {

        intent = new Intent(static_context, BirthExecutor.class);
        intent.putExtra(Target.ROW_ID, 12);

        PendingIntent pending = PendingIntent.getBroadcast(static_context, 10, intent, PendingIntent.FLAG_CANCEL_CURRENT);

        if (pending != null) {

            manager.set(AlarmManager.RTC_WAKEUP, nextExecute, pending);

            BirthLog log = new BirthLog("Scheduled " + t.getFirstname() + " " + t.getLastname() + " on " + df.format(nextExecute));
            log_helper.insertLog(log);
            Log.d("birth", log.getComment());

        } else {

            BirthLog log = new BirthLog(t.getFirstname() + " " + t.getLastname() + " ERROR. TIME: " + df.format(nextExecute));
            log_helper.insertLog(log);
            Log.d("birth", log.getComment());

        }

        intent = new Intent(LogAdapter.LOG_RECEIVE_ACTION);
        static_context.sendBroadcast(intent);

    }

}

@Override
protected Void doInBackground(Void... params) {

    Intent intent;
    SimpleDateFormat df = new SimpleDateFormat("HH:mm dd.MM.yyyy", Locale.US);

    for (Target t : target_helper.getAllTarget()) {

        long nextExecute = getNextExecute(t);

        if (nextExecute > System.currentTimeMillis()) {

            PendingIntent pending = getPendingIntent(context, t, false);

            if (pending != null) {

                BirthLog log = new BirthLog(t.getFirstname() + " " + t.getLastname() + " already active!");
                log_helper.insertLog(log);

            } else {

                manager.set(AlarmManager.RTC_WAKEUP, nextExecute, pending);

                BirthLog log = new BirthLog("Scheduled " + t.getFirstname() + " " + t.getLastname() + " on " + df.format(nextExecute));
                log_helper.insertLog(log);

            }

            intent = new Intent(LogAdapter.LOG_RECEIVE_ACTION);
            context.sendBroadcast(intent);

        }

    }

    return null;

}

private PendingIntent getPendingIntent(Context context, Target t, boolean update) {

    Intent intent = new Intent(context, BirthExecutor.class);
    intent.putExtra(Target.ROW_ID, t.getRow());

    if (update) {
        return PendingIntent.getBroadcast(context, t.getRow().intValue(), intent, PendingIntent.FLAG_UPDATE_CURRENT);
    } else {
        return PendingIntent.getBroadcast(context, t.getRow().intValue(), intent, PendingIntent.FLAG_NO_CREATE);
    }

}

AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_NO_CREATE);
if (pendingIntent == null) {
    pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
    // start it only it wasn't running already
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 10 * 60 * 1000, pendingIntent);
}