Re: [LEAPSECS] floating prime meridian

From: John Cowan <>
Date: Wed, 6 Sep 2000 21:19:24 -0400 (EDT)

On Wed, 6 Sep 2000, Steve Allen wrote:

> Is it really fair to say that time software design can tolerate
> completely unpredictable shifts of civil time by one hour at the whim
> of regional legislative bodies, but that it cannot tolerate
> constrained unpredictable shifts of civil time by one second under the
> command of a single global authority?

Because leap seconds affect universal time, not just local time, and
they affect duration. How do I schedule an event for one year
from now precisely? I can't. It might be any time from
31535998 seconds to 31622402 seconds from now. The day of variability
is extremely predictable. The four seconds of variability is not.

John Cowan                         
One art/there is/no less/no more/All things/to do/with sparks/galore
        --Douglas Hofstadter
Received on Wed Sep 06 2000 - 17:33:40 PDT

This archive was generated by hypermail 2.3.0 : Sat Sep 04 2010 - 09:44:54 PDT