w32time event

I get this event almost every hour on my webserver, which is a stand alone windows 2000 server.

Event Type: Warning
Event Source: w32time
Event Category: None
Event ID: 11
Date: 3/11/2003
Time: 2:11:24 AM
User: N/A
Computer: WEBSERVER
Description:
The NTP server didn’t respond

I can’t assign a seperate time server (like PDC) as this machine is stand alone machine.

How can I use any other time server or in other words on a stand alone windows 2000 server how can I configure time server?

when I use “net time” I get “could not locate a time-server”

Thanks in advance