Android : Send notification in android

I have an app, and would like to send a notification at specific time every day. this is my code:

 AlarmManager am = (AlarmManager)getBaseContext().getSystemService(alarm);
    Intent intent = new Intent("WAKE_UP");
    PendingIntent sender = PendingIntent.getBroadcast(getBaseContext(), 0, intent, 0);

 time use AlarmManager.set().

    am.setRepeating(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis() , AlarmManager.INTERVAL_DAY, sender);

    // Prepare intent which is triggered if the
    // notification is selected
    Intent intent2 = new Intent(this, NotificationReceiverActivity.class);
    PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent2, 0);

    // Build notification
    // Actions are just fake
    Notification noti = new Builder(this)
            .setContentTitle(" boghche " + "shake")
            .setContentText("Shake kon :/").setSmallIcon(R.drawable.icon)
            .setContentIntent(pIntent)
           .build();
    NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    // hide the notification after its selected
    noti.flags |= Notification.FLAG_AUTO_CANCEL;

    notificationManager.notify(0, noti);

But I can not send it in specific time.