From: Drew McDermott (drew.mcdermott@yale.edu)
Date: 10/28/02
[me]
> > Why do we need both *second* and *sec*? (etc.) What does
> *DayOfWeek* denote exactly? I realize that they are introduced in
> connection with time intervals that lie on "official" boundaries,
> such as next Friday, as opposed to some random 24-hour period. I
> just don't see how the extra temporal units contribute. If we start
> with an "era" (such as CE(..)), and carve intervals out by first
> getting the n'th year, then the m'th day of that year, and so forth,
> we can use the original units to keep track of how long each
> interval is. That's what happens in my version, which lacks all
> temporal units except *second*, *minute*, *hour*, *day*, *week*,
> *month*, and *year*. I could make it look more like the original if
> I understood the original.
[pat]
What about the day that starts at 3pm on a Thursday and ends at 3pm
on the following Friday (like the LeMans 24 hour race) ?
That is indeed a day, according to the ontology, but it's not the nth
day of any month or year. Nonetheless, its duration is the same as
those "aligned" days.
-- Drew
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