About Languages and Locales
Windows SharePoint Services uses the following terms to describe the language settings that are used for a Web site:
Language ID
The language ID specified when a Web site is created controls the language used in the Web site itself. For example, if the site was created in French (language ID 1036), all of the toolbars, navigation bars, list and form pages, and so on, appear in French. If the site was created in Arabic (1025), the text is in Arabic, and the default left-to-right orientation of the site is change to right-to-left to properly display Arabic text.
By default, Windows SharePoint Services has language packs that contain site templates for many language IDs. You can install one or more of these language packs to your Web server to support users creating sites in as many languages as you need. For example, if you have a server running the Japanese version (language ID 1041) of Windows SharePoint Services, you can install a U.S. English (1033) language pack with templates that allow your users to create sites configured for U.S. English. New para
Locale ID
The locale ID is specified on the Regional Settings page, and affects how numbers, calendars, sorting, and time are displayed in the site. For example, if you have a U.S. English language site (language ID 1033), and you change the locale ID to French (Canada) (locale ID 3084), the Events list and Calendar views reflect the French notations for dates, numbers, time, and so on. The locale ID does not affect the orientation of the site. Choosing Arabic (Egypt) (locale ID 3073) does not change the site to right-to-left orientation, but does allow you to display the Events list with dates in Arabic notation. Each language template has a default locale ID. For example, in the U.S. English (1033) template, the default locale ID is also 1033.
Windows SharePoint Services supports all of the locale IDs supported by the Microsoft Windows Server 2003 family, which is a much larger set than the set of language IDs.
For more information about supported language IDs and locale IDs, see Regional and Language Settings.