CC5.X Session Timeout?

Hello,

In CC5.3, where can I adjust the "session" timeout? By session timeout, I'm referring to how long can I have Compliance Calibrator open in an IE window and leave it idle before CC automatically logs me off? It must, by default, be set for a long period of time because I've had CC windows sit idle for hours+ at a time and come back and CC has not kicked me out. When I leave a CC window open overnight and come back the next day, then I get kicked out. But I can't seem to find this setting anywhere.

Any help would be greatly appreciated - thanks!

Jes