[ntp:questions] Google and leap seconds

Brian Utterback brian.utterback at oracle.com
Wed Sep 21 20:19:58 UTC 2011

On 09/21/11 16:09, Richard B. Gilbert wrote:
> On 9/21/2011 2:59 PM, John Hasler wrote:
>> Richard B. Gilbert writes:
>>> It's unfortunate that the earth DOES NOT rotate exactly 360 degrees in
>>> exactly 24.000000000000 hours. This bit of poor design causes all
>>> sorts of problems.  Leap seconds are just one of the symptoms!
>> Leapseconds are localization, like time zones, daylight saving, and
>> leapyears.  It's unfortunate that they are considered part of the
>> timestream.
> Too bad that the movements of of the planets, moons, etc. are not better
> behaved.  Lacking the powers of the divine we must work around the fact
> that the earth does not rotate exactly once in each twenty-four hours,
> and the fact that its revolution around the Sun is similarly messy,
> taking 365 days, six hours, and a few odd minutes and seconds which we
> account for (mostly) by declaring a "leap year" every four years.  Those
> "odd minutes and seconds" also add up and must be accounted for every
> hundred years or so.

It's that pesky 2nd law of thermodynamics again. Somebody should get it


Always code as if the guy who ends up maintaining your code will be a
violent psychopath who knows where you live. - Martin Golding
Brian Utterback - Solaris RPE, Oracle Corporation.
Ph:603-262-3916, Em:brian.utterback at oracle.com

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