Sincronizacion via NTP

Copiado de http://server.gladstonefamily.net/pipermail/wxqc/2005-August/003072.html

http://www.pcsupportforums.com/archive/index.php/t-193.html

"Windows XP updates your system clock via the internet (provided you are
connected of course) every 7 days. If you want your clock updated more
often, change the interval time like this:
Press win key+R and type regedit, then press enter.
Navigate to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services
\W32Time\TimeProviders\NtpClient
Select "SpecialPollInterval"
Change decimal value from 604800 (7 days) to whatever interval you want
in seconds. for example: 172800 (2 days) or 86400 (1 day).
Save and exit. - Alan"

Espero que funcione!