In this section of the configuration.json file (located in the Custom folder), you can set up the configuration for select language control.
The Cultures section has the following configuration options:
- CultureNames – the list of languages that are supported by the application. Items should be specified in the following format:
"<language_culture_name>": "<localized_language_title>" - DefaultCulture – culture name of the language that is used by default. If not specified, "en-US" will be used.

The culture also defines the date format for date fields on Candidate Self-Service pages.