freeware - MapleXP
MapleXP enables you to keep track of how much time you spend, working various 
projects. It allows you to maintain multiple projects and divide each project into a hierarchy of tasks and actions in reference to those tasks. The program includes a simple start/stop time that can keep track of your time, and you can generate a report for all your projects.
This might be one for the GTD crowd, or for those who need to account for time spent on each projects for billing, or even for those who are compulsive about such things. I can’t even imagine working like this, but each to their own.
Download here from Snapfiles.