In LaTeX, when you're using a title environment, the current date is automatically inserted.
\documentclass[a4paper, 12pt, twoside]{article}
\title{Title}
\author{Author}
\begin{document}
\maketitle
...
\end{document}
Alternatively, you can insert the current date anywhere using \today. The date format depends on the language or language package being used.
\documentclass{article}
\begin{document}
Text \today Text
\end{document}
Result: "Text April 5, 2024Text"
So, it's advisable to add an extra space:
\documentclass{article}
\begin{document}
Text \today \ Text
\end{document}
Result: "Text April 5, 2024 Text"