I filled out everything requested using the configuration wizard at installation.
I did not edit any files on the flash card.
I have not connected directly to the RPI (by default you cannot)
The OpenHab page, settings -> Regional, shows the correct region, language, and time zone.
The log file shows:
2021-01-20 00:49:13.137 [INFO ] [.core.internal.i18n.I18nProviderImpl] - Time zone set to ‘America/Chicago’.
2021-01-20 00:49:13.173 [INFO ] [.core.internal.i18n.I18nProviderImpl] - Locale set to ‘en_US’.
2021-01-24 01:41:22.031 [INFO ] [.core.internal.i18n.I18nProviderImpl] - Time zone set to ‘America/Chicago’.
2021-01-24 01:41:22.118 [INFO ] [.core.internal.i18n.I18nProviderImpl] - Location set to ‘redacted by me’.
2021-01-24 01:41:22.125 [INFO ] [.core.internal.i18n.I18nProviderImpl] - Locale set to ‘en_US’.