change TZ to TIME_ZONE

README.md

@@ -99,13 +99,13 @@ There are other build arguments available for Composer, WP-CLI, the web server d
   - WWW_GROUP=app
 ```
 ## Build Environment Variables
-To match the file permissions, locale and time zone between the container and the host, use the variables `USER_ID`, `GROUP_ID`, `LOCALE` and `TZ`. These variables are automatically detected and stored in the file `.build.env` in the docker directory by the `install` script. These environment variables are sourced prior to building a container and running the project commands.
+To match the file permissions, locale and time zone between the container and the host, use the variables `USER_ID`, `GROUP_ID`, `LOCALE` and `TIME_ZONE`. These variables are automatically detected and stored in the file `.build.env` in the docker directory by the `install` script. These environment variables are sourced prior to building a container and running the project commands.
 ```
 args:
   - USER_ID=${USER_ID}
   - GROUP_ID=${GROUP_ID}
   - LOCALE=${LOCALE}
-  - TZ=${TZ}
+  - TIME_ZONE=${TIME_ZONE}
 ```
 ## Rebuild Images
 After changing a `Dockerfile` or the `docker-compose.yml` file for a project, use `docker-up --build` to build the images before starting the containers. Use `docker-down --remove-images` to remove the local project images and add `-a` to stop the shared services.