Run timer in another Thread

        {
            Debug.WriteLine(Thread.CurrentThread.ManagedThreadId);
            var timer = new System.Timers.Timer(10000);
            timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
            timer.Start();
            for(int i=0;i<20;i++)
            {
                Debug.WriteLine(Thread.CurrentThread.ManagedThreadId + " " + "current I is " + i.ToString());
                Thread.Sleep(1000);
            }
            Console.ReadLine();
        }

        static void timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            Debug.WriteLine(Thread.CurrentThread.ManagedThreadId+"  current is timer");
            //throw new NotImplementedException();
        }

I have a loop like below

for(int i = 0; i < 10; i++)

{

    // some long time processing

}

I want to create a timer, which would check if one processing runs more than 5 minutes. If one processing runs more than 5 minutes, it would stop current processing then start another processing.

Below is one solution:

        static void Main(string[] args)