The regional settings page allows you to edit all of the regional or local settings. This includes:

Site Language

This is the language the frontend will appear in.

Administration Language

This is the language the administration will appear in.

Date Format

Format for the date that the users will see. This feature uses PHP's date function and you can get more information from here.

Administration Date Format

Format for the date that the administrators will see. This feature uses PHP's date function and you can get more information from here.

Currency Symbol

This is the currency symbol you wish to use. Default is $ or the US money format.

Currency Decimal

This is what you use for the decimal symbol. In the US it is a period where other countries use a comma.

Currency Places

This is the number of decimal places.

Thousands Separator

This is the symbol you use in the thousands place. In the US we use a comma and some other countries use decimals.

Currency Symbol comes before the numbers

Should the currency symbol come before the numbers or after. If yes it comes before. If no it comes after.