You can configure how dates display for admins and for clients. This allows you to display locale-specific date formats to your customers and staff.
You can customize text in WHMCS using the localization system. This allows you to set your own translations in your customers' languages or update the messages they see for your brand.
You can choose whether to allow customers to select the language that they see in the Client Area from a list of WHMCS's supported languages.
You can choose the default country and language for your customers. WHMCS includes many supported languages.
You can translate the name, description, and other text for your products. This allows you to provide custom localization and display your product information in your customer's chosen language.