This is also tested by me in windows 2003 server and windows 7 and it's working tehere as well but I will not take any respnsibility for software damage that will occur.
Note that you should always be careful when messing in the registry and make a backup before doing any changes!

/Peter J

Change Internet Time Update Interval

Published in Windows XP Tips by TweakXP Member with 19,601 views

To change the interval that Windows updates the time using the internet time servers navigate to:

1. HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services \W32Time\TimeProviders\NtpClient
2. Select SpecialPollInterval
3. Change decimal value from 604800 to some other value in seconds. EX: 172800 (2 days)

Posted by Taylor Spencer


Add More Time Servers

Published in Windows XP Tips by Steve Sinchak with 17,215 views and 2 comments

As you may or may not know, Windows XP provides an easy and fast way to synchronize your system time with an Internet time server (Control Panel/Date and Time/Internet Time). By default there are only two servers available ( and To add more, just add them in the registry (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersio n\DateTime\Servers).

Posted by TrOn

<-- Here is a reg file to add some more servers:

------------------- cut here ------------------
Windows Registry Editor Version 5.00

------------------- cut here ------------------

Changed by Peter J

Thanx to