[ntp:questions] Leap second functional question

David L. Mills mills at udel.edu
Sat Feb 23 19:50:53 UTC 2008


Yes, I found the same brick wall. Fortunately, the FCC said up-yours to 
the ITU and published the latest draft complete with blue-lined new text 
and red-lined deleted text. I have some CCIR documents from long ago and 
they cost a king's ransom in Swiss francs.


sla29970 at gmail.com wrote:

> On Feb 22, 12:26 pm, "David L. Mills" <mi... at udel.edu> wrote:
>>My reference for leap second introduction was CCIR Recommendation 517,
>>which permits leaps only June/December.
> For reference, that is now known as ITU-R RA.517, available for
> purchase at
> http://www.itu.int/rec/R-REC-RA.517/en
> as near as I can tell, any language on leap seconds was merely by
> reference to what is now known as ITU-R TF.460, and it had all been
> removed prior to revision 3 of that document which is now at revision
> 4.
> Sigh.  When its name was CCIR it was dismayingly poor at
> consultation.  Now that its name is ITU-R it is still dismayingly poor
> at communication.  I don't like it when international standards needed
> by lots of operational systems are hidden away in proprietary
> documents.

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