att.datable

att.datable provides attributes for normalization of elements that contain dates, times, or datable events. [3.5.4 Dates and Times 13.3.6 Dates and Times]
Modultei — The TEI Infrastructure
Mitgliederacquisition 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
Attributeatt.datable.w3c (@when, @notBefore, @notAfter, @from, @to) att.datable.iso (@when-iso, @notBefore-iso, @notAfter-iso, @from-iso, @to-iso) att.datable.custom (@when-custom, @notBefore-custom, @notAfter-custom, @from-custom, @to-custom, @datingPoint, @datingMethod)
calendarindicates the system or calendar to which the date represented by the content of this element belongs.
Zustand Optional
Datentyp 

<rng:ref name="data.pointer"/>
data.pointer
Schematron

<sch:rule context="tei:*[@calendar]">
<sch:assert test="string-length(.) gt 0">@calendar indicates the system or calendar to which the date represented by the content of this element
belongs, but this <sch:name/> element has no textual content.</sch:assert></sch:rule>
He was born on <date calendar="#Gregorian">Feb. 22, 1732</date>
(<date calendar="#Julian" when="1732-02-22"> Feb. 11, 1731/32, O.S.</date>).
periodsupplies a pointer to some location defining a named period of time within which the datable item is understood to have occurred.
Zustand Optional
Datentyp 

<rng:ref name="data.pointer"/>
data.pointer