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Re: [xml-dev] Incompleteness of Duration

From: Greg Hunt <greg@----------.--->
To: John Cowan <cowan@-------.----.--->
Date: 4/25/2012 2:20:00 AM
To the extent that ISO is a culture all to itself (the ISO definition of a
week does not align with traditional Christian, Islamic or Jewish calendars
but does seem to be well suited for the Western working week), Mike's point
about the start, definition and numbering of weeks seems to be reinforced
by your comment.

On Sun, Apr 22, 2012 at 6:03 AM, John Cowan <cowan@m...> wrote:

> Michael Kay scripsit:
>
> > It's worth noting that whereas there is some kind of consensus on
> > when seconds, minutes, hours, days, months, and years start and end
> > (subject to timezone issues), there is no consensus on when a week
> > starts or ends.
>
> There is, however, an ISO standard: weeks begin on Monday, and the first
> week of the year is the week containing the first Thursday in January.
> Thus 2005-01-01, a Saturday, is synonymous with 2005-W53-6, the sixth
> day of the 53rd and last week of 2004.
>
> Note that XSD time does not include leap seconds, which means that the
> XSD 1.1 value space for durations contains <second, month> pairs.
> There are a fixed number of seconds in a minute, hour, and day, and a
> fixed number of months in a year.
>
> --
> "Repeat this until 'update-mounts -v' shows no updates.         John Cowan
> You may well have to log in to particular machines, hunt down
> cowan@c...
> people who still have processes running, and kill them."
>
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