title: How to know when OWIN cookie will expire?
body: <p>I would like to create some kind of countdown timer based on the time the OWIN cookie will expire.  I am using OWIN with MVC 5 and from what I understand SlidingExpiration is on by default.  I do not use 'session' as I need this app to live within a web farm (I dont plan on deploying a session database).</p>