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