Dear Sirs 

I need to represent a calendar in Portuguese language. You want to use the Tikz calendar package, but the result is unsatisfactory (please see attach). The problem is in the translation of the names of months and days of the week. How can I fix this problem?

Thanks in advance.

Jorge


%%%% test code

\usemodule[tikz]
\usetikzlibrary[calendar]

\language[pt]

\starttext

\tikz \calendar [dates=2014-09-01 to 2015-04-31,
month list,month label left,month yshift=1.25em]
if (Sunday) [black!50]
% GROUP 1
if (between=2012-08-09 and 2012-08-12)[orange]
if (between=2012-06-01 and 2012-06-03)[orange]
if (between=2012-04-05 and 2012-04-07)[orange]
if (between=2012-12-22 and 2012-12-27)[orange]
% GROUP 2
if (between=2012-09-10 and 2012-09-15)[blue] 
if (between=2012-08-17 and 2012-08-21)[blue] 
if (between=2012-06-29 and 2012-07-02)[blue] 
if (between=2012-05-14 and 2012-05-21)[blue] 
% GROUP 3
if (between=2012-11-02 and 2012-11-09)[darkgreen] 
if (between=2012-01-01 and 2012-01-27)[darkgreen] 
;


\stoptext