Re: [Ntp] Finding leap-seconds.list

["Dieter Sibold" <[e-mail]>]

On 9 Nov 2018, at 19:11, Steve Allen wrote:

> On Fri 2018-11-09T10:47:47-0500 Danny Mayer hath writ:
>> My understanding is that IERS is the body responsible for deciding 
>> when
>> to declare a leap-second.
>
>> The distribution of the information seems to be a vague process.
>
> The IETF inherited this responsibility in 1988 from the original

I suppose you meant to say ‚The IERS inherited this responsibility 
…‘. Correct?

> responsible agency, International Time Bureau (BIH).  The process has
> never been specified other than a leap second must be announced at
> least 8 weeks in advance.  This made sense at the date of the original
> recommendation 460 in 1970 because at that time BIH was publishing
> Bulletin Horaire every two months.  No regulation required BIH nor
> requires IERS to publish this information in a machine-accessible
> format, and no there is no source of funds for publishing with a
> robust technology.
>
> This timekeeping tragedy-of-the-commons can be seen at least as far
> back as 1925 when broadcast time signals were being used by navigators
> of vessels, commercial clock setting operations, surveyors, and
> geodecists around the world.  The IAU was paying all of the expenses
> of running the BIH and wondering if maybe they could get the IUGG to
> contribute some funds toward the understanding of why different time
> broadcasts disagreed and studying ways of improving their
> synchronization
>
> http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1926BuBIH...2..123S&db_key=AST&page_ind=20&data_type=GIF&type=SCREEN_VIEW&classic=YES
>
> --
> Steve Allen                    <[e-mail]>              WGS-84 
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