Pass DateTimeZone directly and remove hardcoded ‘europe/brussels’
>>> [!note] Migrated issue
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<!-- Migrated from issue #3546469. -->
Reported by: [joelpittet](https://www.drupal.org/user/160302)
Related to !73
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>There are two timezone cleanups needed in the calendar module:</p>
<ul>
<li>We unnecessarily convert a <code>DateTimeZone</code> object to a string and back before use (e.g., <code>new DateTimeZone(timezone_name_get($dateInfo->getTimezone()))</code>). This adds noise and can fail if <code>timezone_name_get()</code> returns false.</li>
<li>In year view, the minimum date is created with a hardcoded timezone <code>'europe/brussels'</code>, which ignores the site’s configured timezone.</li>
</ul>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<ul>
<li>Pass the existing <code>DateTimeZone</code> object directly everywhere it’s needed.</li>
<li>Replace the hardcoded timezone with <code>$view->dateInfo->getTimezone()</code> so the view respects site configuration.</li>
</ul>
issue