On 5/7/2018 4:38 PM, GS wrote:
"...most development languages use DateSerial"

Well, let's say most have a library available for the developer _to_
use. :)

MS, of course, has a problem in that they think 1900 was a leap year so
are off by one compared to those who don't (correctly). I don't know
which way the C library work or POSIX or whether there's an
interpretation on how should work.

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