Hello John, others,

Just some ancilliary information, not sure any of it will be of any help.

On 2022-10-20 05:36, John C Klensin wrote:


--On Wednesday, October 19, 2022 21:44 +0200 Carsten Bormann
<[email protected]> wrote:

(4) I don't remember the full history of RFC 3339, but assume
that the -00:00 convention was introduced for easy and
accurate transcoding from email date-times, notably that
specified in RFC 2822.

One of my hopes of bringing this up in a wider context was to
uncover some of this history.

Graham is still very much around and active and Chris is easy to
reach.  You, or someone more closely involved with SEDATE than I
am, might try asking :-)

I sent a private mail to Graham asking him to chime in in case he remembers something useful.

  >>> (4) I believe that there are at least two important lessons
for SEDATE in the above.  First, extending ISO 8601:2019

1988, please, not 2019.

See above.  If nothing else, whatever unkind things several of
us might say about the price of ISO documents, the 1988 versions
are as unavailable as ISO can make them.  You could negotiate
with my bookshelf, but I could not make copies then and can't
make them now.   So, yes, I understand what you are saying and
why, but there is a bit of a trap there.

Searching for "ISO 8601:1988" on the most popular search engine brought up several sites that still sell that old version, including one that made available the first seven pages as a preview. Prices vary, but are all in the exorbitant region mentioned in earlier mails.

Also, I remember that on some occasions working together with people involved in ISO, they mentioned that ISO standards are available for free or much cheaper for standards work. As far as I understand, this would apply here.

Also, ISO has the concept of Publicly Available Standards (see https://standards.iso.org/ittf/PubliclyAvailableStandards/index.html). ISO 10646, the equivalent of Unicode, is an example. It's not very easy to get a standard on that list, but it would be a possibility at least for the latest version.

And then there's the concept of fair use (or similar in different countries) which would make it possible for you (John) to retype some of the most relevant sentences from your bookshelved copy to one of these mails if really needed.

Regards,   Martin.

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