data.temporal.w3c

data.temporal.w3c defines the range of attribute values expressing a temporal expression such as a date, a time, or a combination of them, that conform to the W3C XML Schema Part 2: Datatypes specification.
Moduletei — 1 The TEI Infrastructure
Declaration
data.temporal.w3c =
   xsd:date
 | xsd:gYear
 | xsd:gMonth
 | xsd:gDay
 | xsd:gYearMonth
 | xsd:gMonthDay
 | xsd:time
 | xsd:dateTime
Note
If it is likely that the value used is to be compared with another, then a time zone indicator should always be included, and only the dateTime representation should be used.