Can I change the default language?
Can I change the default language of the Plone interface?
Yes, you can. Plone is fully internationalised.
Go to: Site setup > Language settings. Choose your language in the dropdown "Default language".
If your language is not in the dropdown 'Default language', first make it an 'Allowed language'.
If Language settings is missing from Site setup
In older versions of Plone the Language tool is not bundled with Plone and you have to install it as an optional product.
Download and install the latest version of Plone Language Tool that is compatible with your version of Plone. Then perform the steps described above.