Neutron is a very simple and small time synchronizing program that retrieves the accurate time from one of several specialized time servers on the Internet. Once the network time has been retrieved the program can set your computer's clock to match it. Options in the program enable you to automatically obtain the time from the time server and set your clock appropriately at program startup. It is also possible to have the program automatically exit after the time has been set and so is ideal for placing a shortcut in your Startup folder to sync your clock when your computer is started.....(free).....