[ntp:questions] Leap second functional question

David Woolley david at ex.djwhome.demon.co.uk.invalid
Wed Feb 20 22:42:28 UTC 2008

> You are asking for the impossible!  Leap seconds keep time in synch with 

That was the intention.  I was pointing out that you can only use "true" 
time to represent historic civil times, you cannot calculate the "true" 
time of a future civil time beyond the first candidate leap second.

> the earth's rotation.  The rate of rotation is subject to small 
> variations.  This is why leap seconds occur at irregular intervals and 
> why it is possible to have a negative leap second, although I don't 
> recall that we ever had one.
Exactly, which is why the question casts doubt on the use of "true" 
time, which was my intention.

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