TeamLogger - Simple, employee time-tracking software with automatic screenshots and activity level monitoring. $1 / User / Month.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Screenshot Monitor - Best tool for remote, office and freelance time tracking to boost your team performance.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Monitask - Employee Monitoring Software with Screenshots, Internet, Activity and Time Tracking
Clockify - Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.