diff --git a/README.md b/README.md
index f3d82a7..c3c8da5 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,6 @@ Szkielet komponentu Joomla 6 do gromadzenia pytań testowych.
 
 ## Instalacja
 
-W Joomla wybierz **System → Install → Install from Folder** i wskaż ten katalog. Manifestem instalacyjnym jest `com_testquestions.xml` (wersja 1.38.0).
+W Joomla wybierz **System → Install → Install from Folder** i wskaż ten katalog. Manifestem instalacyjnym jest `com_testquestions.xml` (wersja 1.39.0).
 
 Po instalacji komponent jest dostępny w panelu administratora jako **Pytania testowe**.
diff --git a/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini b/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini
index 8c9f437..75fdc3a 100644
--- a/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini
+++ b/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini
@@ -60,6 +60,7 @@ COM_TESTQUESTIONS_SET_NO_VARIANTS="Brak wariantów"
 COM_TESTQUESTIONS_SET_MULTI_QUESTIONS_INFO="Pytania są dodawane w poszczególnych wariantach zestawu."
 COM_TESTQUESTIONS_SET_SAVE="Zapisz"
 COM_TESTQUESTIONS_SET_SAVE_AND_CLOSE="Zapisz i zamknij"
+COM_TESTQUESTIONS_SET_VARIANT_DURATION_INFO="Czas testu jest pobierany z zestawu nadrzędnego."
 COM_TESTQUESTIONS_SET_DESCRIPTION="Opis zestawu"
 COM_TESTQUESTIONS_SET_QUESTIONS="Pytania w zestawie"
 COM_TESTQUESTIONS_SET_QUESTION_COUNT="Liczba pytań"
diff --git a/administrator/components/com_testquestions/sql/updates/mysql/1.39.0.sql b/administrator/components/com_testquestions/sql/updates/mysql/1.39.0.sql
new file mode 100644
index 0000000..f6d000a
--- /dev/null
+++ b/administrator/components/com_testquestions/sql/updates/mysql/1.39.0.sql
@@ -0,0 +1 @@
+-- No database changes required for version 1.39.0.
diff --git a/administrator/components/com_testquestions/src/Model/SetModel.php b/administrator/components/com_testquestions/src/Model/SetModel.php
index 7ae6d5b..6ad56cc 100644
--- a/administrator/components/com_testquestions/src/Model/SetModel.php
+++ b/administrator/components/com_testquestions/src/Model/SetModel.php
@@ -133,6 +133,10 @@ class SetModel extends AdminModel
 
         if ($parentId > 0) {
             $data['set_type'] = 'variant';
+            $parent = $this->getItem($parentId);
+            if ($parent) {
+                $data['duration'] = (int) $parent->duration;
+            }
         } elseif (!in_array(($data['set_type'] ?? 'ordinary'), ['ordinary', 'multi'], true)) {
             $data['set_type'] = 'ordinary';
         }
diff --git a/administrator/components/com_testquestions/src/View/Set/HtmlView.php b/administrator/components/com_testquestions/src/View/Set/HtmlView.php
index 6787456..a1b02bc 100644
--- a/administrator/components/com_testquestions/src/View/Set/HtmlView.php
+++ b/administrator/components/com_testquestions/src/View/Set/HtmlView.php
@@ -4,6 +4,7 @@ namespace Komponent\Component\Testquestions\Administrator\View\Set;
 
 defined('_JEXEC') or die;
 
+use Joomla\CMS\Factory;
 use Joomla\CMS\Language\Text;
 use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
 use Joomla\CMS\Toolbar\ToolbarHelper;
@@ -15,6 +16,8 @@ class HtmlView extends BaseHtmlView
     protected $questions;
     protected $categories;
     protected $variants;
+    protected $isVariant;
+    protected $parentTitle = '';
 
     public function display($tpl = null)
     {
@@ -23,6 +26,14 @@ class HtmlView extends BaseHtmlView
         $this->questions = $this->get('Questions');
         $this->categories = $this->get('Categories');
         $this->variants = $this->item && (int) $this->item->id > 0 ? $this->get('Variants') : [];
+        $parentId = Factory::getApplication()->getInput()->getInt('parent_id');
+        $this->isVariant = (int) ($this->item->parent_id ?? 0) > 0 || $parentId > 0;
+        $this->parentTitle = (string) ($this->item->parent_title ?? '');
+
+        if ($this->isVariant && $this->parentTitle === '' && $parentId > 0) {
+            $parent = $this->getModel()->getItem($parentId);
+            $this->parentTitle = (string) ($parent->title ?? '');
+        }
 
         if (count($errors = $this->get('Errors'))) {
             throw new \RuntimeException(implode("\n", $errors));
diff --git a/administrator/components/com_testquestions/tmpl/set/edit.php b/administrator/components/com_testquestions/tmpl/set/edit.php
index a7f2f0f..c670476 100644
--- a/administrator/components/com_testquestions/tmpl/set/edit.php
+++ b/administrator/components/com_testquestions/tmpl/set/edit.php
@@ -10,16 +10,20 @@ HTMLHelper::_('behavior.formvalidator');
 <form action="<?php echo Route::_('index.php?option=com_testquestions&view=set&layout=edit&id=' . (int) $this->item->id); ?>" method="post" name="adminForm" id="adminForm" class="form-validate">
     <fieldset class="adminform">
         <?php echo $this->form->renderField('parent_id'); ?>
-        <?php if ((int) $this->item->parent_id > 0) : ?>
-            <div class="alert alert-info"><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_SET_PARENT'); ?>: <?php echo $this->escape($this->item->parent_title ?? ''); ?></div>
+        <?php if ($this->isVariant) : ?>
+            <div class="alert alert-info"><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_SET_PARENT'); ?>: <?php echo $this->escape($this->parentTitle); ?></div>
             <input type="hidden" name="jform[set_type]" value="variant">
         <?php else : ?>
             <?php echo $this->form->renderField('set_type'); ?>
         <?php endif; ?>
         <?php echo $this->form->renderField('title'); ?>
         <?php echo $this->form->renderField('subject_id'); ?>
-        <?php echo $this->form->renderField('duration'); ?>
-        <output id="set-duration-value" class="form-text mb-3"></output>
+        <?php if (!$this->isVariant) : ?>
+            <?php echo $this->form->renderField('duration'); ?>
+            <output id="set-duration-value" class="form-text mb-3"></output>
+        <?php else : ?>
+            <div class="alert alert-info"><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_SET_VARIANT_DURATION_INFO'); ?></div>
+        <?php endif; ?>
         <?php echo $this->form->renderField('test_content'); ?>
         <?php echo $this->form->renderField('image'); ?>
         <?php echo $this->form->renderField('description'); ?>
diff --git a/com_testquestions.xml b/com_testquestions.xml
index d2273c5..84cbaa6 100644
--- a/com_testquestions.xml
+++ b/com_testquestions.xml
@@ -4,7 +4,7 @@
     <creationDate>2026-10-14</creationDate>
     <author>Komponent</author>
     <license>GNU General Public License version 2 or later</license>
-    <version>1.38.0</version>
+    <version>1.39.0</version>
     <description>COM_TESTQUESTIONS_DESCRIPTION</description>
     <element>com_testquestions</element>
     <namespace path="src">Komponent\Component\Testquestions</namespace>