HP3000-L Archives

January 1999, Week 2

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
Glenn Cole <[log in to unmask]>
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Date:
Tue, 12 Jan 1999 11:38:15 -0800
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Clive Pottinger writes:

> NOTE: The number returned representing the Lotus 1-2-3 date is
> inaccurate for dates before Mar 1, 1900.  This is because Lotus 1-2-3
> has a bug - it incorrectly treats 1900 as a leap year.

Incidentally, this touches on why I think we got "lucky" with y2k situation.

From Clive's statement, it looks like 1-2-3 takes as its leap year rule
"any year that is evenly divisible by 4."  Of course, that's only one
piece of a 3-piece rule.  It is our good fortune that this piece also
points to 2000 as being a leap year.

If technology had advanced "a bit faster" and we were preparing for 1900,
there would be more software failure.

--Glenn

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