How long does it take to automatically log out a user?

Due to the heavy use of MS Word documents, that are often edited for hours at a time, our timeout period is 12 hours to prevent losing work. 

Our timeout policy is not adjustable for specific organizations. If your organization wants to implement a specific log out time, an IT administrators can set up a Windows timeout policy that is set organization wide; however, that would handle the entire computer rather than a just the extendedReach website.