Keeps track of time you've spent on your computer. Time is charged to one or more "projects&quot\; from your list by simply "punching in&quot\; when you begin work on each project. Projects may be grouped into different categories that you specify. If you spend time working for different clients, PC-TimeClock can generate billing information for you. You can export this information to a text file. If you use your computer for both business and pleasure, PC-TimeClock can tell you what percentage of your usage was for business, and thus the percentage of its value that you can depreciate or deduct as a business expense on your taxes.