graph localization

Is there a way to generate the correct localized name of the day in the 
trends graph?

I am trying to generate italian names, and i added

LANG=it_IT at euro
LC_CTYPE="it_IT at euro"
LC_NUMERIC="it_IT at euro"
LC_TIME="it_IT at euro"
LC_COLLATE="it_IT at euro"
LC_MONETARY="it_IT at euro"
LC_MESSAGES="it_IT at euro"
LC_PAPER="it_IT at euro"
LC_NAME="it_IT at euro"
LC_ADDRESS="it_IT at euro"
LC_TELEPHONE="it_IT at euro"
LC_MEASUREMENT="it_IT at euro"
LC_IDENTIFICATION="it_IT at euro"


to hobbitserver.cfg, but i still have the english names ..
any idea?
thanks
--
gianluca