There is no standard date/time format that meets the needs of various well-known XML metadata schemas, MODS, MADS, METS, PREMIS, etc. This website describes the current effort to develop a reasonably comprehensive date/time definition for the bibliographic community, as well as other interested communities, and submitting it for standardization or some other mode of formalization, for example a W3C note or an amendment to ISO 8601.

• Draft Specification
  

• Datetime Listserv. Please join the discussion of this developing specification.

This site is maintained in the Network Development and MARC Standards Office of the Library of Congress.