If you don’t need advanced project tracking but still want to track how long it takes you to finish certain tasks or projects, Chrome Time Tracker is a free Chrome extension with a dead simple interface.
Install the extension and a Time Track icon appears in your toolbar. Click it to create new tasks, delete old tasks, and start, stop, and reset your task timers. When the timer is running the icon changes to indicate you’re on the clock; pause the timer and it toggles back to the default icon. Hit up the link below to grab a copy. Chrome Time Track is free and works wherever Google Chrome does.
Chrome Time Track [Google Chrome Extensions]