https://www.tei-c.org/Vault/P5/4.3.0/doc/tei-p5-doc/ja/html/ref-teidata.duration.iso.html
TEI data teidata.duration.iso
teidatadurationiso
https://tei-c.org/release/doc/tei-p5-doc/es/html/ref-teidata.interval.html
TEI data teidata.interval
teidatainterval