Denys writes. . .
<Much informative text snipped!>
> An ordinal date is identified by a given day in a given year.  A week
> is identified by its number in a given year.  A week begins with a
> Monday (in a departure from the Gregorian calendar, my italics) and
> the first week of a year is the one which includes the first Thursday,
> or equivalently the one which includes January 4.

I'm lost on this last one...  If the first Thursday of a month is the
first, that would only provide three days of the calendar month in
the first week - or maybe I need to count Sunday in this instance,
since a week begins on Monday (in a departure from the Gregorian
calendar, his italics).

-dll  (maybe if I'd say my question outloud, I'd stumble into the
answer before I started typing )
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