Show remaining cookie time

How do I find out how much time remaining for the user to be authenticated in the asp core (I gave a good search on the internet but could not find the remaining time of the user, I wanted to set a timer for the user to view the time remaining to expire the user).

Coockie setup:

 services.AddAuthorization(options =>
 {     
 })

.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
.AddCookie(options =>
{
    options.LoginPath = "/Login/Login/";
    options.AccessDeniedPath = "/Home/Error";
    options.ExpireTimeSpan = TimeSpan.FromHours(3);

});;