I create MVC application with .NET Core 8. This application, in production, runs on IIS. I need to force the session timeout to more than 20 minutes.

I tried in this way:

builder.Services.AddSession(options => { 
    options.IdleTimeout = TimeSpan.FromHours(24);
});

It works correctly outside of IIS, but in IIS it seems that this information are ignored.

To solve this I usually go in IIS Application Pools, Advanced settings and, in Process Model, I change Idle Time-out setting.

In this case I don’t have access to IIS. It’s possible to force this value from code?