Setting the timezone ini value doesn't seem to be functional

[Rockylars]

I've got a simple Laravel project that locally uses Docker with a supplied ini file in the docker-compose.yml file.

example-php-service:
  volumes:
    - ./docker/custom.ini:/usr/local/etc/php/conf.d/zzz-last-loaded.ini

This ini contains a timezone setter date.timezone="Europe/Amsterdam" as otherwise the timezone would be UTC, it isn't set in Laravel. Without it, my test for "pull records from an hour ago, based on now()->toImmutable()" would fail. With it, my tests now succeed.

Now i wanted to repeat this on my test runner by using this config.

-   name: Setup PHP with tools
    timeout-minutes: 1
    uses: shivammathur/[email protected]
    with:
        php-version: 8.2
        extensions: none, bcmath, Core, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, imagick, json, libxml, mbstring, mongodb, mysqlnd, openssl, pcre, PDO, pdo_pgsql, pdo_sqlite, pgsql, Phar, posix, random, readline, redis, Reflection, session, SimpleXML, soap, sodium, SPL, sqlite3, standard, tokenizer, xml, xmlreader, xmlwriter, Zend OPCache, zip, zlib
        coverage: none
        ini-values: memory_limit="1G", date.timezone="Europe/Amsterdam"
        tools: composer:v2

Which loads it in as shown by the GitHub log

==> Add php.ini values
✓ memory_limit=1G Added to php.ini
✓ date.timezone=Europe/Amsterdam Added to php.ini

But then when pulling the timezone from a timestamp in a PHPUnit step, it is still set as UTC (note that it did also say this locally but the tests did get fixed), where as it fixed it in my Docker set up just fine.

What would be the cause? For now i can fix it in the code by doing this, but it is weird that my ini value isn't respected.

protected function setUp(): void
{
    parent::setUp();
    date_default_timezone_set('Europe/Amsterdam');
}

[Rockylars]

Fixed it by just forcing Laravel in app.php to uphold a timezone, seems to just be a difference in Docker PHP handling the ini compared to setup-php and Laravel. The ini was set but Laravel would change it, except the Docker set up somehow made Laravel not change it.