[1] JATS

[2] ANSI/NISO Z39.96-2012, JATS: Journal Article Tag Suite, version 1.0 - z39.96-2012.pdf, 2020-10-28T09:16:11.000Z https://groups.niso.org/apps/group_public/download.php/10904/z39.96-2012.pdf#page=481

A machine-processable, ISO 8601 formatted date (“YYYY-MM-DDThh:mm:ss”) value for a date that may be specified as text, as a partial date, or as any other date format that cannot be guaranteed to be machine-processable.