[ntp:questions] GPS-UTC Leap Corrections

David Mills mills at udel.edu
Fri May 8 20:48:21 UTC 2009


Steve,

The latest ITU document prolongs the status quo. Required reading for 
folks wanting to weigh in on this isse is Nelson, R.A., et all. The leap 
second: its history and possible future. Metrologia, 2001, 38, 509-529.

Dave

Steve Allen wrote:

>On May 6, 4:33 pm, John Hasler <j... at dhh.gt.org> wrote:
>  
>
>>Leap secondscould be handled the same way DST is.  You just structure your
>>zonefile such that the 15 seconds becomes 16 after the effective date of
>>the leap second.
>>    
>>
>
>If this proves tractable it would be an invaluable example for the
>member delegations to ITU-R WP7A as they discuss how to overcome the
>political impasse which has prevented progress toward deciding the
>future of the broadcast time scale.  It might prompt one of the member
>nations to make a formal proposal akin to the notions I have outlined
>http://www.ucolick.org/~sla/leapsecs/epochtime.html
>http://www.ucolick.org/~sla/leapsecs/deltat.html
>It is particularly relevant in the UK where there is an upcoming
>mandate for all-digital radio transmissions.  After that transition
>the BBC's six pips will always be buffered, so it will not be possible
>to use them to set a timepiece manually.  The only reliable means for
>manual setting would become to listen to shortwave time signals.
>
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>  
>




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