[time-nuts] Windows XP time

Joseph Gray jgray at zianet.com
Wed May 17 19:43:18 UTC 2006


> The fundamental difference between SNTP and NPT is that SNTP does only a
> period check and adjustment, so the clock can drift significantly
> between polls.  NTP on the other hand attempts to continuously steer the
> clock, and uses a much more sophisticated algorithm to determine the
offset.
>
> John

I knew SNTP was not as good as NPT, but I would have thought that SNTP kept
the clock accurate to at least the nearest second. Obviously not. So, what's
the worst that a typical PC clock would be off when using SNTP?





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