Hi Paul -- You can go down as deep a rathole with internet timing as we do with atomic clocks :-), but in very gross terms if your computer is running the "NTP" time daemon you can keep time to better than 100ms pretty easily. With a broadband connection and good choice of servers, a few milliseconds is possible.
Earlier versions of Windows did not have a good timekeeping system, but I understand that the latest service pack of XP is much improved; I don't know how it compares with the "real" NTP program though. John ---- ABSA Email said the following on 10/28/2006 12:32 PM: > Hi there, > I need some advice. > I'm not into the nano-second accuracy region, so this could well be > considered OT. > > 1. I have a Gent's mechanical clock, and I check it by my computer clock. To > set the computer clock, I use the built-in synchronisation to > time.windows.com, or time.nist.gov. How accurate can this be by the time > that the synchronising signal reaches my computer in South Africa? Are > there any time stations nearer to me than USA? Does the time signal update > itself as it travels the Internet to me? > > 2. This is for frequency measurement. Can anyone recommend a divide-by-ten > counter to use as a pre-scaler up to 500 MHZ? > > > > Paul Galpin > South Africa > > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts