Question : How can I keep synchronised the clock of my PC working on WinXP?
Can I use NTP servers in Public domain? How to configure the PC (running on Win XP) for that? What are the IP address of NTP servers?
ntp server

Best answer:

Answer by vinny_the_hack
Double click the time at bottom right of your PC, click on “internet time”, copy and paste this: time.windows.com

and check the little box.