Windows XP can automatically synchronize your clock to keep it accurate. To set this up:
- Right-click your clock, and then click Adjust Date/Time
- Click the Internet Time tab, then the Server down arrow
- Select time.nist.gov from the list
- Confirm that the Internet time synchronization box is checked
- Click Update Now, and Windows XP contacts the Internet time server and sets your clock
- Click OK to close the Date/Time window