[LEAPSECS] happy anniversary pips

[Warner Losh]

On Feb 11, 2014, at 10:12 AM, Rob Seaman wrote:

> Your definition of the word “cope” is different than mine.  It would be a trivial change to permit leap seconds more frequently than monthly.  Such won’t be needed for many centuries.  Leap hours are an impractical rhetorical gimmick to dump the whole question (except the significant costs to many) on future generations.


Leap hours in the time scale yes. Changes to the offset to Atomic Time, not so much since that changes all the time now when we're using Universal Time. But that's not what's being talked about. Atomic Time has no leap anything ever.

Warner


> For any new members of the list these issues have been discussed repeatedly in the past.  The list archives are at:

> 

> 	http://six.pairlist.net/mailman/listinfo/leapsecs (since 2007)

> 	http://www.ucolick.org/~sla/navyls/ (before 2007)

> 

> Rob

> —

> 

> On Feb 11, 2014, at 10:04 AM, Tony Finch <dot at dotat.at> wrote:

> 

>> Rob Seaman <seaman at noao.edu> wrote:

>>> On Feb 11, 2014, at 9:31 AM, Tony Finch <dot at dotat.at> wrote:

>>>> 

>>>> Yes. And time zone adjustments will be able to keep civil time in sync

>>>> with earth rotation for a much longer time than leap seconds :-)

>>> 

>>> Nonsense!

>> 

>> Leap seconds can deal with a rate difference of at most 12s per year.

>> Time zone changes can cope with rate differences of 3600 seconds per year.

>> (Though it is an odd time zone that always falls back and never springs

>> forward...)

>> 

>> Tony.

>> -- 

>> f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/

>> Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.

>> Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,

>> occasionally poor at first.

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