About Language changes…

Hello people,

Hope everyone is doing well, now i have a question about the language that comes by default on wordpress wich is English, i just acquired a new template for my blog wich i can modify really easy without changing the whole engine to italian wich is the language im trying to use…

Now the problem comes on the months and days of the published articles it still showing January, February – Monday…. I already edited the file located on /wp-inclues/js/tinymce/langs/wp-langs.php but it didnt changed the publication language, is there any other files that i need to modify to make this work the way i want without changing the whole engine to Italian?

Thanks in advance!