[ntp:questions] Number of Stratum 1 & Stratum 2 Peers

Jochen Bern Jochen.Bern at LINworks.de
Mon Dec 15 00:12:43 UTC 2014

On 12/14/2014 09:04 AM, Brian Inglis wrote:
> Legal civil time in most countries is defined as mean solar time, where it
> is not still defined relative to GMT, as it is in most countries in the
> Commonwealth of Nations deriving their common laws from England, and many
> allied European and Asian countries.

Hm. Is that really the case? The current German legislation refers to
"coordinated world time" (which might be taken as referring to TAI just
as well as to UTC, as far as I can understand) and assigns the task of
"distributing the legal time" to the PTB (which could be construed as
ruling anything besides DCF77-based notions of time "not the legal
thing"; BTW, DCF77 announces leap seconds only about an hour before the
fact, with no specs *asserting* so that I could find).


> I am somewhat surprised that no lawyer has, as yet, argued for phone
> evidence to be discarded because telco equipment uses TAI or GPS time
> scales which have no legal basis in any country.

Too easily countered by actual measurements showing that the equipment's
notion of time never strayed more than a worst-case total of X ms (or, a
la rigeur, X seconds) from the notion mandated by the legalese, I'ld
guess. It's not like the courts would turn a blind eye to evidence just
because they'ld prefer an official endorsement by the parliament.

(Always assuming that the facts needing confirmation allow for that much
deviation, of course. But high-speed trades aren't concluded on devices
on a GSM network, are they?)

								J. Bern
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