Windows 7: Automatically Syncronzing Your System Clock

By default, Windows will automatically synchronize its clock with a time server on the Internet. If for some reason, your clock isn't automatically getting adjusted, here is how to fix it:

• In the Start menu search field type "Date and Time" and press Enter, this should be bring the Date and Time control panel
• In the Date and Time dialog box, click the Internet Time tab.
• Press the Change Settings button. Press the Continue button in the User Account Control dialog box (if it displays).
• In the Internet Time Settings dialog, click the Server drop-down arrow and select another time server. The default is time.windows.com, try using time.nist.gov and see it works for you.
• Press the Update now button to update your computer's clock, and test your computer's
  
• Press the OK buttons close the dialog boxes.