%% 
%%  A DANTE-Edition example
%% 
%%  Beispiel 02-14-14 auf Seite 80.
%% 
%%  Copyright (C) 2010 H. Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

%%Run also: >>  << 
% Show page(s) 1

\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{355.65944pt}


\usepackage{spreadtab}

\begin{document}
\begin{spreadtab}{{tabular}{cc}}
@1789/7/14               & engshortdatetonum(a1)\\
2001/1/1 :={}            & engshortdatetonum([-1,0])\\
engshortdatetonum(0/3/1) & engshortdatetonum(\number\year/\number\month/\number\day)\\
englongdatetonum(February 13, 2005) & englongdatetonum(\today)\\
@July 1, 1970                       & englongdatetonum(a5)\\\hline
@2010/11/23              & engshortdatetonum([-1,0])\\
@2010/1/1                & engshortdatetonum([-1,0])\\
@Differenz               & :={[0,-2]-[0,-1]} Tage
\end{spreadtab}
\end{document}