att.datable.iso

att.datable.iso provides attributes for normalization of elements that contain datable events using the ISO 8601 standard. [3.5.4 Dates and Times 13.3.6 Dates and Times]
Modulenamesdates — Names, Dates, People, and Places
Membersatt.datable [acquisition affiliation age application binding birth bloc change climate country creation custEvent date death district education event faith floruit geogFeat geogName langKnowledge langKnown licence location name nationality occupation offset orgName origDate origPlace origin persName placeName population precision provenance region relation residence resp seal settlement sex socecStatus stamp state terrain time trait]
AttributesAttributes
when-isosupplies the value of a date or time in a standard form.
Status Optional
Datatype 

<rng:ref name="data.temporal.iso"/>
data.temporal.iso

The following are examples of ISO date, time, and date & time formats that are not valid W3C format normalizations.

<date when-iso="1996-09-24T07:25+00">Sept. 24th, 1996 at 3:25 in the morning</date>
<date when-iso="1996-09-24T03:25-04">Sept. 24th, 1996 at 3:25 in the morning</date>
<time when-iso="1999-01-04T20:42-05">4 Jan 1999 at 8:42 pm</time>
<time when-iso="1999-W01-1T20,70-05">4 Jan 1999 at 8:42 pm</time>
<date when-iso="2006-05-18T10:03">a few minutes after ten in the morning on Thu 18 May</date>
<time when-iso="03:00">3 A.M.</time>
<time when-iso="14">around two</time>
<time when-iso="15,5">half past three</time>

All of the examples of the when attribute in the att.datable.w3c class are also valid with respect to this attribute.

He likes to be punctual. I said <q>
 <time when-iso="12">around noon</time>
</q>, and he showed up at <time when-iso="12:00:00">12 O'clock</time> on the dot.

The second occurence of time could have been encoded with the when attribute, as 12:00:00 is a valid time with respect to the W3C XML Schema Part 2: Datatypes Second Edition specification. The first occurence could not.

notBefore-isospecifies the earliest possible date for the event in standard form, e.g. yyyy-mm-dd.
Status Optional
Datatype 

<rng:ref name="data.temporal.iso"/>
data.temporal.iso
notAfter-isospecifies the latest possible date for the event in standard form, e.g. yyyy-mm-dd.
Status Optional
Datatype 

<rng:ref name="data.temporal.iso"/>
data.temporal.iso
from-isoindicates the starting point of the period in standard form.
Status Optional
Datatype 

<rng:ref name="data.temporal.iso"/>
data.temporal.iso
to-isoindicates the ending point of the period in standard form.
Status Optional
Datatype 

<rng:ref name="data.temporal.iso"/>
data.temporal.iso
Note

The value of these attributes should be a normalized representation of the date, time, or combined date & time intended, in any of the standard formats specified by ISO 8601, using the Gregorian calendar.

Note
If both when-iso and dur-iso are specified, the values should be interpreted as indicating a span of time by its starting time (or date) and duration. That is,
<date when-iso="2007-06-01" dur-iso="P8D"/>
indicates the same time period as
<date when-iso="2007-06-01/P8D"/>

In providing a ‘regularized’ form, no claim is made that the form in the source text is incorrect; the regularized form is simply that chosen as the main form for purposes of unifying variant forms under a single heading.