Hi,

It seems that in Excel you can have 2/29/1900 although that day did not
exist?

That would mean that the number of days between 1/1/1990 and, say,
5/1/2006 is not 38838 or (38838-1, if you will) but rather 38837 or
(38837-1, if you will).

Correct?

Thanks!

Aaron Fude