[Tex/LaTex] add day and month to bibliography using biblatex with bibtex backend

biblatexbibliographiesbibtexdatenatbib

I'm using a setup with biblatex/natbib and bibtex and I would like to add day and month to the bibliography. Is there a simply way to do this?

With my MWE below, I currently get – with not day and month,

ga me data a mont

\documentclass{article}

\usepackage[backend=bibtex,
            dateabbrev=false,
            style=authoryear,
            natbib=true]%
                          {biblatex}

\begin{filecontents}{references.bib}
unpublished{Book,
  title = {This is a Title},
  author = {Author, Some},
  note={This is a note about this specific version}
  date = 2005,
  month = feb,
  day = 14,
}
\end{filecontents}
\addbibresource{references.bib}

\begin{document}

Cf. \citep[19]{Book}.

\printbibliography

\end{document}

Best Answer

You will want to use the date field with YYYY-MM-DD format.

@unpublished{Book,
  title  = {This is a Title},
  author = {Author, Some},
  note   = {This is a note about this specific version},
  date   = {2005-02-14},
}

But then you will still not see the full date in the bibliography. This has to do with the mergedate settings, see https://github.com/plk/biblatex/issues/520

At the moment, mergedate=false, minimum or basic will give you the full date.

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