[ntp:questions] National time standard differences
David J Taylor
david-taylor at blueyonder.delete-this-bit.and-this-part.co.uk.invalid
Tue Feb 9 10:46:32 UTC 2010
> I've setup an NTP server in the south east asia region synchonising
> with regional NTP servers as well as a couple of servers I am
> responsible for in the US.
> remote st t when poll reach delay offset jitter
> +Japan 1 u 454 1024 377 87.402 -0.560 0.056
> *Japan 1 u 476 1024 377 87.277 -0.810 1.542
> -NorthAmerica 2 u 427 1024 377 285.387 -17.741 5.084
> -NorthAmerica 2 u 429 1024 377 307.208 -17.061 0.083
> Is the above delta seen between Japanese and North American time
> sources purely the delta between the outbound / return network path or
> something else?
Most likely asymmetrical paths, yes. To answer your implied question, it
is most /unlikely/ that the USA National Time is 17 milliseconds away from
Japan National Time, if that's what you were thinking. National time
differences are likely to be microseconds or less, I believe.
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