[LEAPSECS] BBC radio Crowd Science

[Warner Losh]

On Wed, Feb 1, 2017 at 1:50 AM, Zefram <zefram at fysh.org> wrote:
> Warner Losh wrote:
>>I'd suggest that you re-read what I wrote, because these two
>>paragraphs do not represent that at all.
>
> It certainly involves a different result from what you stated, but as
> I said, your result doesn't seem to follow from the principle that
> you stated.  Rereading, my view of your statements hasn't changed.
> Of course it's conceivable that I didn't grasp your intent, in which
> case I still don't.
>
> You never explicitly performed the computation for an example such as my
> case of 2016-12-31T23:59:59.0 UTC, 2017-01-01T00:00:35.0 TAI.  Perhaps you
> could clarify your intent by walking through the computation of TAI-UTC
> for that instant, contrasting it with the equivalent computation for
> 2016-12-31T23:59:60.0 UTC, 2017-01-01T00:00:36.0 TAI.  Or, if you prefer,
> walk through the computations of the UTC values from the TAI and TAI-UTC
> values for those instants.
>
>>For a negative leapsecond, it's clear that the offset changes at the
>>end of :58 second. Briefly, you are adding two to get the next second
>>instead of the customary one.
>
> "Adding two to get the next second" implies the use of the regular
> 60-second radix.  That's not compatible with your system of `borrowing'
> in the irregular radix.
>
>>My irregular-radix system?
>
> The aspect of this that I'm attributing to you is the use of the irregular
> radix for the arithmetic around the TAI-UTC difference.

If you are going to willfully misunderstand, then I'm done being patient.

Warner