[LEAPSECS] multiple UTCs

[mike cook]

Le 18/01/2012 15:24, Zefram a écrit :

>

> Suppose we have UTC0 which aims to track UT1 within 1 s and schedules

> leaps a year in advance, which is nearly the current UTC.  Then UTC1

> aims to track UT1 within 10 s, and schedules leaps a decade in advance.

> UTC2 aims to track UT1 within 100 s, and schedules leaps a century

> in advance.  And so on, for those with really long planning horizons.

> Users of UTC should switch to whichever version of UTC meets their needs.

> A specific choice of UTC<n>  implicitly documents the actual tracking

> and stability requirements of a system, where currently these are often

> hidden due to not having such options available.

   Out side of a few seconds, I suspect the unpredictability of  UT1 
would make useful predictions problematic, even if a need was identified.