Week of year?

[Bruce Hobbs]

At 4:13 PM -0500 3/6/00, Pickering, John (NORBORD wrote:

>Yeah, ISO considers Monday the first day of the week. Quoting from the
>gnu.org site, where date and time functions are described:
>"The ISO 8601:1988 week number as a decimal number (range 01 through 53).
>ISO weeks start with Monday and end with Sunday. Week 01 of a year is the
>first week which has the majority of its days in that year; this is
>equivalent to the week containing the year's first Thursday, and it is also
>equivalent to the week containing January 4. Week 01 of a year can contain
>days from the previous year. The week before week 01 of a year is the last
>week (52 or 53) of the previous year even if it contains days from the new
>year."
>
IIRC one of the "known" Y2K-related problems for some folks not using the ISO definition (or something similar) is that days actually fall into 54 different weeks this year.
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