App for tracking how long an employee spends at work without working

I think it would be great to have an app that you can install on a computer, phone, tablet, etc, that tracks how long an employee actually works throughout the day. It would track and report things like:<br><br>* How much time they spend actually working (doing things that fall under their job description)<br>* How much time they spend doing things that are not work related (browsing short videos on YouTube, chatting with coworkers, etc)<br>* How much time they spend doing things that are work-related but aren't part of their job description<br>* How much time they spend doing things that are partially work-related but also partially not work related (like browsing YouTube for a piece of work-related information, but then continuing to watch videos that aren't work-related)<br><br>I think such an app would help employees and employers be able to determine what parts of the day are the most efficient for work, and what parts of the day are the most inefficient. This would make it easier to schedule breaks, snacks, etc. <br><br>Even if the app was inaccurate, it could still be very useful in that you would be able to get an idea of how well the employee was focusing at work.