Open Business and find the language and time-format settings. Choose the preferred language and either 24-hour or 12-hour time.
Save the changes and refresh the affected page. The time format changes how times are displayed; it does not change the location's time zone or working hours.
Public pages can use a location-specific public display language. Review that setting separately when customers and staff use different languages.
After changing regional settings, check a booking calendar, a queue time, and a public page to make sure the result is clear.