[LEAPSECS] The ends we seek
Stephen Colebourne
scolebourne at joda.org
Fri Jan 20 09:49:10 EST 2012
On 20 January 2012 14:31, Daniel R. Tobias <dan at tobias.name> wrote:
> On 20 Jan 2012 at 17:26, Mark Calabretta wrote:
>
> > If UTC is discontinuous in any sense then so must the Gregorian
> > calendar be, with a "discontinuity" 86400 times greater on Feb/29.
>
> You don't even have to wait for a leap year for a non-uniform radix,
> since you've already got that in "30 days hath September" and the
> rest of the month lengths.
>
There are four key elements of date/time that vary:
- month lengths
- leap years
- DST & permanent offset changes
- leap seconds
And those are in decreasing order of importance.
Some have suggested that leap seconds could be absorbed as a "permanent
offset change". One of the proposals that should be written up is how that
would work.
Stephen
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