Once you create a container you can simply delete the container and recreate it with the new settings. Certain data will persist if you have volumes set up such as the ./vw-data and your config.json file which will override any other CLI defined settings where they overlap at the container creation.
Containers are designed to be ephemeral and the os and other config can be easily brought down, load-balanced, and recreated as needed with data persisting on separate storage in certain scenarios.
Hopefully once you recreate the new container with the correct tz variable settings it’ll show logs correctly.