[ntp:questions] National time standard differences
Richard B. Gilbert
rgilbert88 at comcast.net
Tue Feb 9 15:04:06 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?
AFAIK, there is no way to be sure! What is certain is that using
sources that distant from your site leaves plenty of room for error!
I try to use sources within 300 miles or less. My home system uses a
GPS receiver as its primary source. This will work in most "reasonable"
locations! It also provides extremely good accuracy!
More information about the questions