Setting the locale
For the OSA Status in System Details I get the localized date displayed, when changing my browser settings. But most of the other dates are still in american format.
We disable locale selection to only allow english. The language selection also affects the locale.
Allow locale selection, only ship english translations, should still force english language.
Other technical details
if you want to get dd/mm/yyyy there you could select english/UK > with this trick:
echo "update rhnuserinfo u set preferred_locale='en_GB' where u.user_id in (select c.id from web_contact c where c.login='admin')" | spacewalk-sql --select-mode-direct -
(mind the "en_GB" and "admin" and replace them with the right user/locale)