Messages in this thread | | | Date | Tue, 23 Jun 1998 20:02:02 +0200 (METDST) | From | Gabriel Paubert <> | Subject | Re: Y2K |
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On Tue, 23 Jun 1998 linker@nightshade.ml.org wrote:
> On Tue, 23 Jun 1998, OLK wrote: > > > Alan Cox wrote: > > > Has POSIX yet determined what sort of second since the Epoch ? > > How many sorts of seconds do we have, and if so which one is the right > > one ? > > I thought the second was the basic metric unit of time and was defined by > the time it takes light in a vaccume to travel some distance or sumpting.. >
Not exactly, it is referenced to an atomic transition of cesium AFAIR. The problem is that the earth rotation is not as precise and uniform (actually it is slowing down). And there are contradictory needs between keeping an exact time based on the atomic reference and having the time of the day defining Earth's orientation.
It's becoming way offtopic, so I shall not comment publicly further on this thread.
Gabriel.
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