Start app at a specific time

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You can do it with AlarmManager, heres a short example. First you need to set the alarm:

AlarmManager am = (AlarmManager) con.getSystemService(Context.ALARM_SERVICE);

Date futureDate = new Date(new Date().getTime() + 86400000);
futureDate.setHours(8);
futureDate.setMinutes(0);
futureDate.setSeconds(0);
Intent intent = new Intent(con, MyAppReciever.class);

PendingIntent sender = PendingIntent.getBroadcast(con, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
am.set(AlarmManager.RTC_WAKEUP, futureDate.getTimeInMillis(), sender);

Next, You need to create a reciever with some code to execute your application: (ie- starting your app):

public class MyAppReciever extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

    startActivity(new Intent(context, MyAppMainActivity.class));
   }
}

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