<time> datetime format is incorrect?

[robertandrews]

Running the W3C HTML validator on a fresh BlankSlate theme locally, I see many errors around the formatting of datetime used in elements...

Error: Bad value 14 March 2022 for attribute datetime on element time: The literal did not satisfy the time-datetime format.

From line 100, column 1; to line 100, column 73

| </span>↩<time class="entry-date" datetime="14 March 2022" title="14 March 2022" >14 Mar

Here are valid datetime formats https://developer.mozilla.org/en-US/docs/Web/HTML/Element/time

This is virtually my first issue report. Forgive faux pas.