Failing to resolve timezone for certain Docker containers

I’ve noticed this with the latest ESPHome docker container:

As you can see on the above image, the host “/etc/localtime” has “GMT” timezone, and the same is shown inside the docker container, however there is an (incorrect) symlink to UTC!

I know I could use the TZ variable to fix this, however I’ve been mapping the “/etc/localtime” for a long time now and never had any issues until today!

I’ve opened a similar issue against ESPHome here: https://github.com/esphome/issues/issues/2718

[regebro]

I added a note about this in the readme. Thanks!

[pedrolamas]

This of course all boils down to the problem that Unix does not have one official way of configuring this, but many. And that’s nothing I can do anything about.

Fully agree with this one! 😁

The way to fix that is to either fix the conflict or set up a TZ environment variable.

This is what I’ve done since I started having this issue, and stopped mapping the /etc/localtime.

At the time, I decided on raising this issue as my docker containers that were working fine, were now not even starting, so to me there was some breaking change on the tzlocal behavior that could have not been considered!

My personal problem was solved with the TZ variable, so feel free to close this if there is no further action/documentation update required.