Talk:GLAM/Newsletter/April 2021/Contents/Wikimedia and Libraries User Group report
To the right I placed a screenshot of how the EDTF extension looks in Wikibase. Also note that each EDTF string is accompanied with a 'human readable' version of that string.
During the development it was decided to split of the handling of the EDTF strings into their own PHP-library to help the wider non-wiki community to adopt the standard.
The Github repositories of the project can be found here:
Additionally the people behind WBStack have added the extension for you to experiment with.