Setting the date in an elsarticle

Consider the following elsarticle document:

\documentclass[preprint,12pt]{elsarticle}
\journal{Journal of something}
\begin{document}
\begin{frontmatter}
\title{My article}
\begin{abstract}
Summary
\end{abstract}
\end{frontmatter}
Lorem ipsum
\end{document}

When compiled, it shows the date in the bottom right corner. How can I change this? The obvious \date does not seem to work (but gives no error).

-