On Thu, 13 Apr 2017 23:05:42 +0100, Dr J R Stockton
 declaimed the following:

>In comp.sys.raspberry-pi message x.com>, Tue, 4 Apr 2017 12:23:02, Dennis Lee Bieber
> posted:
>
>>       365.2422 days to a Tropical (solar) year. 365.2425 for Gregorian
>>(that's why we drop a leap day every four-hundred years). 3
>> ...
>
>No.  We, at least on this side of the Atlantic, drop a quadrennial leap
>day every one hundred years, except every four hundred years.  It is
>thought that the librettist of "The Pirates of Penzance" was expecting
>that 1900-02-29 would fairly soon occur.

 Please swat me on the head -- I did know that (and if I were
enumerating the leap-day rules rather than looking at fractional years...
leap day in years divisible by 4 except if also divisible by 100 unless it
is divisible by 400...
--
 Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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