Page History

...

Determining and setting the latter is fairly straightforward since the system users will usually know which locale they prefer. They can also set the locale themselves directly in the AdminCentral or they may ask a user with superuser rights to set the preferred locale for them. Determining the locale for a site is less transparent since public users usually access web pages as anonymous users. Magnolia then has to rely on indirect means that point to the preferred locale of public users.

AdminCentral locale

AdminCentral locale primarily sets the language of User interface labels that the user of AdminCentral wants to see and work with, such as labels in the Action bar (English on the left, Korean on the right):

...

Surely, two different English-speaking editors, one working in London and the other one working in Berlin, will want to use their local times in many instances of such a field. In addition, the form of the timezone placeholder depends not only the time zone setting, but also on the language setting described just above. If the preferred working language of one of the editors is set to German, the hint will show MEZ (abbrev. of Mitteleuropäische Zeit) instead of CET (abbrev. of Central European Time). 

Configuring the AdminCentral locale

When logged-in in the AdminCentral, users may set their locale via the Language and Time zone fields in the Edit user profile dialog. The language part of the locale setting will be reflected in the names of action menus, actions, buttons and labels throughout the AdminCentral provided the locale is one of the available system languages (see further below) or it will fallback to English. 

...