[coyotos-dev] coyotos.sleep, sleepTill, the epoch

[Valerio Bellizzomi]

On 08/02/2007, at 16.14, Sam Mason wrote:

>On Wed, Feb 07, 2007 at 11:29:13PM +0100, Valerio Bellizzomi wrote:
>> "As of 2004, the possibility of ending the use of leap seconds in civil
>> time is being considered. A likely means to execute this change is to
>> define a new time scale, called "International Time", that initially
>> matches UTC but thereafter has no leap seconds, thus remaining at a
>> constant offset from TAI. If this happens, it is likely that Unix time
>> will be prospectively defined in terms of this new time scale, instead
of
>> UTC. Uncertainty about whether this will occur makes prospective Unix
>time
>> no less predictable than it already is: if UTC were simply to have no
>> further leap seconds the result would be the same."
>
>The Wikipedia entry fails to mention when this change could occur.  As
>far as I can tell the proposal is to change it in 2022[1,2], not much
>help for Coyotos.

Sam:
  Thanks for the references, I give you some other [3,4,5].
  TAI and other time scales have been used for long time. Julian Dates
have been used for centuries by astronomers, geodesists, and other science
people.
  Which time scale you need depends upon which applications you run.
Implementing other time scales is useful independently of the change in
2022.

[3] http://www.eecis.udel.edu/~mills/database/papers/leapseconds.pdf
[4] (google it or search on citeseer) -> "Computer Time Synchronization.
Michael Lombardi, Time and Frequency Division, NIST."
[5] http://www.inrim.it/index.shtml

>
>
>  Sam
>
> [1] http://www.ucolick.org/~sla/leapsecs/timescales.html
> [2] http://www.ien.it/luc/cesio/itu/annex_a.pdf

val