I'm sorry, I should have phrased my question more clearly; I'm aware of
4.7 'Divisions of a Year', but is this feature supported within
intervals, defined in section 4.4?
For example, will something like the following be supported:
2017-21/2017-23 (season/season interval)
2017-21/2017-12 (mixed season/year-month interval)
2017-21/* or /2017-21 (open or unknown season interval)
Using seasons in intervals seems rather useful for referencing
publications and I'm considering implementing support for it, but
unless I'm missing something, I'm worried that this does not conform to
On Wed, 2018-01-03 at 21:21 +0000, Denenberg, Ray wrote:
> Yes, seasons will be supported but the heading is generalized to
> "Divisions of a Year". Following is the (draft) text:
> 4.7 Divisions of a year
> 4.7.1 General
> For a year-and-month expression (e.g. 1984-04) the month component
> can take on values of 21 or above (in place of a month value, 01
> through 12). These values signify a division of a year (e.g. “the
> season Spring”).
> 4.7.2 Level 1
> The values 21, 22, 23, 24 can be used to signify ' Spring', 'Summer',
> 'Autumn', 'Winter', respectively.
> Format: YYYY-SS
> • 2001-21
> Spring, 2001
> > -----Original Message-----
> > From: Discussion of the Developing Date/Time Standards
> > [mailto:[log in to unmask]] On Behalf Of Sylvester Keil
> > Sent: Wednesday, January 03, 2018 2:53 PM
> > To: [log in to unmask]
> > Subject: [DATETIME] Seasons in intervals (ISO 8601)
> > My apologies if this has been discussed already in the past, but
> will seasons in
> > intervals still be supported by ISO 8601?
> > I have found a related discussion about seasons in intervals for
> the original
> > EDTF spec in the archive , but the draft ISO 8601-2 document
> does not make
> > any mention of this to the best of my knowledge.
> > Specifically, section 4.4 and Annex A seem to imply that seasons
> in intervals
> > are not allowed — is that correct?
> > For the related issue in edtf.js see .
> > Many thanks,
> > Sylvester
> >  https://listserv.loc.gov/cgi-bin/wa?A2=DATETIME;cdcd7c8d.1108
> >  https://github.com/inukshuk/edtf.js/issues/12