\documentclass{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[ngerman, swedish, russian, greek, english]{babel}

\usepackage{lmodern}

\begin{document}
\thispagestyle{empty}
\today

\selectlanguage{ngerman}
\today

\selectlanguage{swedish}
\today

\selectlanguage{russian}
\today

\selectlanguage{greek}
\today

\selectlanguage{english}
\today

\end{document}