Can not set timezone in Docker version

[MatejKovacic]

Versions

• Pi-hole version is v5.18.3 (Latest: v5.18.3)
• web version is v5.21 (Latest: v5.21)
• FTL version is v5.25.2 (Latest: v5.25.2)

Platform

• OS and version: Debian 12.7
• Platform: Docker

Expected behavior

When I run docker-compose up -d, timezone is not set.

Actual behavior / bug

It seems that timezone parameter is not passed to Pihole docker?

Steps to reproduce

In docker-compose.yml I have:

    environment:
      - TZ='Europe/Ljubljana'

When I log in to web interface, times are still in UTC and not in my timezone.

[rdwebdesign]

I could be wrong, but I think the correct syntax should be:

    environment:
      - TZ=Europe/Ljubljana

Or:

    environment:
      TZ: 'Europe/Ljubljana'

[MatejKovacic]

OK, I changed it to

    environment:
      - TZ=Europe/Ljubljana

...and it is still the same problem.

Also, I have this:

    environment:
      - FTLCONF_LOCAL_IPV4=${FTLCONF_LOCAL_IPV4}
      - TZ=Europe/Ljubljana
      - WEBTHEME=${WEBTHEME:-default-light}
      - REV_SERVER=false
      - PIHOLE_DNS_=xx.xx.xx.xx#5335
      - DNSSEC=true
      - DNSMASQ_LISTENING=single

... and those settings do work (for instance, custom DNS, webtheme, etc... Just timezone does not work.

[yubiuser]

Do you see such line in your docker log?

[i] Added ENV to php:"
     "TZ" => "Europe/Ljubljana",

[MatejKovacic]

Yes,

  [i] Added ENV to php:
                    "TZ" => "Europe/Ljubljana",

[yubiuser]

Please switch into your running container and check if /etc/lighttpd/conf-available/15-pihole-admin.conf contains the correct TZ env variable.

[rdwebdesign]

Running from the host, what is the output of this command (replace Pihole with the name of your container)?

docker exec Pihole bash -c 'echo $TZ'

EDIT:
Please also generate a debug log, upload it and post here only the Token.

[MatejKovacic]

docker exec pihole bash -c 'echo $TZ'
Europe/Ljubljana

But when I open a new domain and check the logs are exactly two hours back.

[MatejKovacic]

Wow, just found out that Firefox shows logs with -2 hours (in UTC), but Chromium shows times correctly (in Europe/Ljubljana).

Why??

[rdwebdesign]

Note sure...

Try adding this to your compose file:

  volumes: 
    - /etc/timezone:/etc/timezone:ro

[MatejKovacic]

OK, it seems to be crappy Firefox setting: under about:config I have privacy.resistFingerprinting = true. So it is not Pihole problem...