I understand,
I did some more research and from what I understand is its the GL server/Docker but if you got a chance to read that last post it has another ideas for you to be able to try. One being the type of Time Zone needed. I also found issues on GitHub about the Docker version you have. Sorry I can be more help
EDIT: Can you add your local files (/etc/timezone and /etc/localtime) as volume in your docker-container.
Update your docker-compose.yml with the following lines.
volumes:
- “/etc/timezone:/etc/timezone:ro”
- “/etc/localtime:/etc/localtime:ro”
So the container time is the same as on your host?