MVC 5 Identity Automatic Logout

Question

How do I implement an Automatic Logout Timer.

So basically if the user is inactive for x minutes their session is ended?

I have tried:

Answer 1

Its a property in the App_Start\Startup.Auth.cs file:

  app.UseCookieAuthentication(new CookieAuthenticationOptions
  {
      ExpireTimeSpan = TimeSpan.FromMinutes(5),
      AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
      LoginPath = new PathString("/Account/Login")
   });