Reading the recently released Best Practices for Recording Chronological
Data in Bibliographic Records got me curious about the status of EDTF.

February 4, 2019, we can read the EDTF draft standard.

But at dated
October 2019, we're advised that "EDTF functionality has now been
integrated into ISO 8601-2019, the latest revision of ISO 8601, published
in March 2019." We're further advised that "The draft specification is no
longer publicly, readily available, because its availability has caused
confusion with the official version. It has been archived and is available
for research purposes from the Library of Congress upon request."

The first page above has a link labelled "Background" which now connects to
the second page above.

Meanwhile, LC's Descriptive Cataloging Manual, Z1, 046 instructs us to use
ETDF for formulating dates.

Is the web access to EDTF now unintended, or is the current Background
statement misleading about the status of EDTFas a standard? Has EDTF been
superseded by ISO 8601-2019?


Stephen Hearn, Metadata Strategist
Data Management & Access, University Libraries
University of Minnesota
170A Wilson Library (office)
160 Wilson Library (mail)
309 19th Avenue South
Minneapolis, MN 55455
Ph: 612-625-2328
Fx: 612-625-3428
ORCID:  0000-0002-3590-1242