Newbie question on background resources

Hey Flowstate, thank you very much for the help. I have another question regarding background services. I have been trying to implement a test background service on my smartwatch now, but it does not seem to work for me.

The code is quite simple:

using Toybox.Application;
using Toybox.WatchUi;
using Toybox.Background;
using Toybox.Time;

(:background)
class overloadApp extends Application.AppBase
{
    var mView;
    var mBackgroundData;
	
    function initialize() {
        AppBase.initialize();
        if(Background.getTemporalEventRegisteredTime() != null) {
            Background.registerForTemporalEvent(new Time.Duration(5*61));
        }
    }

    function onBackgroundData(data) {
        System.println("background data");
    }

    function getInitialView() {
    	System.println("App started");
    	mView = new overloadView();
        return [mView];
    }

    function getServiceDelegate(){
        return [new overloadDelegate()];
    }
}

///////////////////////////////////////////////////////////////////

using Toybox.Background;
using Toybox.Communications;
using Toybox.System;

(:background)
class overloadDelegate extends System.ServiceDelegate {
	function initialize() {
        ServiceDelegate.initialize();
    }


    function onTemporalEvent() {
        System.println("In temporal");
        Background.exit(true);
    }
}

So basically what i want to see is if the System.println("background data") or System.println("In temporal") is written in the log-file after 5-6 min which i defined in initialize. I tried running the code and waiting for about 15 minutes, but nothing seems to happen. I could at least see "App started" which is the system.print in getInitialView when checked the log-file. 

Thanks in advance! :)