.NET API Add Service

//--- worker service
services.AddHostedService<WorkerService>();

// WorkerService
using Microsoft.Extensions.Hosting;
using System.Threading.Tasks;
using System.Threading;
using System;


namespace NWIWasteWebAPI.System.API.Services
{
    public class WorkerService: BackgroundService
    {


        
        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            while (!stoppingToken.IsCancellationRequested)
            {
                Console.WriteLine("Executing background task running at "+ DateTimeOffset.Now.ToString());

                          localTimeZone();
                await Task.Delay(5000, stoppingToken);

            }
        }

       
        private void localTimeZone()
        {
            const string dataFmt = "{0,-30}{1}";
            const string timeFmt = "{0,-30}{1:dd/MM/yyyy HH:mm}";
            TimeZone curTimeZone = TimeZone.CurrentTimeZone;
            // What is TimeZone name?  
            Console.WriteLine(dataFmt, "TimeZone Name:", curTimeZone.StandardName);

            // What is GMT (also called Coordinated Universal Time (UTC)  
            DateTime curUTC = curTimeZone.ToUniversalTime(DateTime.Now);
            Console.WriteLine(timeFmt, "Coordinated Universal Time:", curUTC);
            // What is GMT/UTC offset ?  
            TimeSpan currentOffset = curTimeZone.GetUtcOffset(DateTime.Now);
            Console.WriteLine(dataFmt, "UTC offset:", currentOffset);

            // Step 1: get current time zone.
            var zone = TimeZoneInfo.Local;
            Console.WriteLine("Local DisplayName: "+zone.DisplayName);
            Console.WriteLine(" -------------------------------- ");
            // Step 2: get offset. (The hours change from UTC)
            TimeSpan offset = zone.GetUtcOffset(DateTime.Now);
            Console.WriteLine("offset:"+offset);

            // Get utc.
            var zone2 = TimeZoneInfo.Utc;
            Console.WriteLine("zone display name:"+zone2.DisplayName);
            Console.WriteLine(" -------------------------------- ");
        }


    }
}