Cold Turkey - Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
Monitask - Employee Monitoring Software with Screenshots, Internet, Activity and Time Tracking
Time Sink - Time Sink helps you track how you spend your time on your Mac.
TimenTask - TimenTask is a software which tracks the time spent on each activity and helps to increase productivity by managing their work, it is suitable for startups & enterprises.
Anti-Social - Anti-Social is a productivity application for Macs that turns off the social parts of the internet.
Hyperlogs - Are you still using spreadsheets to keep track of time? Time Tracking has never been this easy.