Romaco Timeout is a free computer tool that can restrict the amount of time that a child (or anyone) uses their computer for. It has modules that can restrict the length of a session, create a cumulative daily time limit, set a window of time that the computer is available for, as well as monitoring web usage. It also has website and program blocking capabilities.
v3.1 [Sep 14, 2011]
Fix bug where the web browser block is not removed when quota is reset.
