RescueTime allows you to track how much time you spend in each program/website, and then give you a report on how productive you actually were. Were you working hard, or actually on YouTube for most of the day?
Rescue Time with Log My Hours
Once you have synced Log My Hours with RescueTime, your timesheet entries will show how productive you were in the given time period. You can also click on it to get a complete breakdown, which is pictured below.