The example page of apastyle.apa.org for articles in proceedings does not mention listing the month and day of the conference for inproceedings items.
MWE (biblatex-examples.tex):
\documentclass[american]{article}
\usepackage{babel}
\usepackage{csquotes}
\usepackage[backend=biber, style=apa]{biblatex}
\begin{filecontents}{\jobname.bib}
@inproceedings{goodfellow2013,
title = {Maxout Networks},
booktitle = {Proceedings of the 30th International Conference on Machine Learning},
author = {Goodfellow, Ian and Warde-Farley, David and Mirza, Mehdi and Courville, Aaron and Bengio, Yoshua},
editor = {Dasgupta, Sanjoy and McAllester, David},
date = {2013-06-17/2013-06-19},
series = {Proceedings of Machine Learning Research},
volume = {28},
number = {3},
pages = {1319--1327},
publisher = {{PMLR}},
location = {{Atlanta, Georgia, USA}},
url = {https://proceedings.mlr.press/v28/goodfellow13.html}
}
\end{filecontents}
\addbibresource{\jobname.bib}
\addbibresource{biblatex-examples.bib}
\begin{document}
Lorem \autocite{goodfellow2013}
\printbibliography
\end{document}
The example page of apastyle.apa.org for articles in proceedings does not mention listing the month and day of the conference for inproceedings items.
MWE (
biblatex-examples.tex
):