Windows only: Synchronize your computer’s clock with numerous time servers around the world using freeware application DS Clock. On its first run, it will dock itself on the top right hand corner of your desktop, but you can customize its look and feel as well as its position quite easily. As an added bonus, DS Clock comes with a stopwatch so that you can track the time it takes to perform certain tasks online. Not bad. DS Clock is a freeware application for all flavors of Windows.