[time-nuts] The future of UTC

[Steve Rooke]

On 16 July 2011 02:51, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> In message <CACTjVNyewpkSnJbt3DSf5KDvTq0JPwxM6X2RUXdXTcrp3jC7Hw at mail.gmail.com>
> , Steve Rooke writes:
>
>>Sorry to barge in here but I thought the leap second need was about a
>>two year thing so wouldn't that mean a ten second jump at the twenty
>>year mark.
>
> No.
>
> "schedule them 20 years in advance" is not the same as "schedule
> once every 20 seconds".

Ah! I get you. Not 10 leap seconds at 20 year intervals, just an
almanac to indicate when they will be for up to 20 years in advance. I
guess that means they could take a bye for any scheduled event that is
not required, as in the 7 year period without one.

Steve

> If the time-lords want a leap second 2031-12-31, the have to say so
> before before 2011-12-31, if they want one 2032-06-30, they have
> to say so before 2012-06-30, etc.
>
>
> --
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
>
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-- 
Steve Rooke - ZL3TUV & G8KVD
The only reason for time is so that everything doesn't happen at once.
- Einstein