diff --git a/src/Listener/UpdatedAt.php b/src/Listener/UpdatedAt.php
index 9a438cf..626318e 100644
--- a/src/Listener/UpdatedAt.php
+++ b/src/Listener/UpdatedAt.php
@@ -6,12 +6,14 @@
 
 use Cycle\ORM\Command\StoreCommandInterface;
 use Cycle\ORM\Entity\Behavior\Attribute\Listen;
+use Cycle\ORM\Entity\Behavior\Event\Mapper\Command\OnCreate;
 use Cycle\ORM\Entity\Behavior\Event\Mapper\Command\OnUpdate;
 
 final class UpdatedAt
 {
     public function __construct(
-        private string $field = 'updatedAt'
+        private string $field = 'updatedAt',
+        private bool $nullable = false
     ) {
     }
 
@@ -22,4 +24,12 @@ public function __invoke(OnUpdate $event): void
             $event->command->registerAppendix($this->field, $event->timestamp);
         }
     }
+
+    #[Listen(OnCreate::class)]
+    public function onCreate(OnCreate $event): void
+    {
+        if (!$this->nullable) {
+            $event->state->register($this->field, $event->timestamp);
+        }
+    }
 }
diff --git a/src/UpdatedAt.php b/src/UpdatedAt.php
index 0c21c2b..71b4894 100644
--- a/src/UpdatedAt.php
+++ b/src/UpdatedAt.php
@@ -14,9 +14,10 @@
 use Doctrine\Common\Annotations\Annotation\Target;
 
 /**
- * UpdatedAt behavior will automate adding an updating date to your entity. The behavior has two parameters:
+ * UpdatedAt behavior will automate adding an updating date to your entity. The behavior has three parameters:
  *    - field - is a property in the entity
- *    - column - is a column in the database.
+ *    - column - is a column in the database
+ *    - nullable - if this parameter is set to false, will be set initial value when an entity is creating
  * Behavior requires a field with the DateTime type.
  * A property in an entity and a field in the database can be added in several ways:
  *   - Can be added by a behavior automatically.
@@ -29,7 +30,8 @@
  * @Target({"CLASS"})
  * @Attributes({
  *     @Attribute("field", type="string"),
- *     @Attribute("column", type="string")
+ *     @Attribute("column", type="string"),
+ *     @Attribute("nullable", type="boolean")
  * })
  */
 #[\Attribute(\Attribute::TARGET_CLASS), NamedArgumentConstructor]
@@ -39,7 +41,8 @@ final class UpdatedAt extends BaseModifier
 
     public function __construct(
         private string $field = 'updatedAt',
-        ?string $column = null
+        ?string $column = null,
+        private bool $nullable = false
     ) {
         $this->column = $column;
     }
@@ -52,7 +55,8 @@ protected function getListenerClass(): string
     protected function getListenerArgs(): array
     {
         return [
-            'field' => $this->field
+            'field' => $this->field,
+            'nullable' => $this->nullable
         ];
     }
 
diff --git a/tests/Behavior/Fixtures/UpdatedAt/Post.php b/tests/Behavior/Fixtures/UpdatedAt/Post.php
index f6fd76d..c78b15a 100644
--- a/tests/Behavior/Fixtures/UpdatedAt/Post.php
+++ b/tests/Behavior/Fixtures/UpdatedAt/Post.php
@@ -19,5 +19,6 @@ class Post
     #[Column(type: 'datetime', nullable: true)]
     public ?\DateTimeImmutable $updatedAt = null;
     public ?\DateTimeImmutable $customUpdatedAt = null;
+    public \DateTimeImmutable $notNullableUpdatedAt;
     public ?string $content = null;
 }
diff --git a/tests/Behavior/Functional/Driver/Common/UpdatedAt/ListenerTest.php b/tests/Behavior/Functional/Driver/Common/UpdatedAt/ListenerTest.php
index 8fb725e..cd9981d 100644
--- a/tests/Behavior/Functional/Driver/Common/UpdatedAt/ListenerTest.php
+++ b/tests/Behavior/Functional/Driver/Common/UpdatedAt/ListenerTest.php
@@ -27,6 +27,7 @@ public function setUp(): void
                 'id' => 'primary',
                 'updated_at' => 'datetime,nullable',
                 'custom_updated_at' => 'datetime,nullable',
+                'not_nullable_updated_at' => 'datetime',
                 'content' => 'string,nullable'
             ]
         );
@@ -41,19 +42,28 @@ public function setUp(): void
                     'id' => 'id',
                     'updatedAt' => 'updated_at',
                     'customUpdatedAt' => 'custom_updated_at',
+                    'notNullableUpdatedAt' => 'not_nullable_updated_at',
                     'content' => 'content'
                 ],
                 SchemaInterface::LISTENERS => [
-                    UpdatedAt::class,
                     [
                         UpdatedAt::class,
-                        ['field' => 'customUpdatedAt']
+                        ['nullable' => true]
+                    ],
+                    [
+                        UpdatedAt::class,
+                        ['field' => 'customUpdatedAt', 'nullable' => true]
+                    ],
+                    [
+                        UpdatedAt::class,
+                        ['field' => 'notNullableUpdatedAt', 'nullable' => false]
                     ]
                 ],
                 SchemaInterface::TYPECAST => [
                     'id' => 'int',
                     'updatedAt' => 'datetime',
-                    'customUpdatedAt' => 'datetime'
+                    'customUpdatedAt' => 'datetime',
+                    'notNullableUpdatedAt' => 'datetime'
                 ],
                 SchemaInterface::SCHEMA => [],
                 SchemaInterface::RELATIONS => [],
@@ -73,6 +83,19 @@ public function testCreate(): void
         $this->assertNull($data->customUpdatedAt);
     }
 
+    public function testCreateNotNullable(): void
+    {
+        $post = new Post();
+
+        $this->save($post);
+
+        $this->orm->getHeap()->clean();
+        $select = new Select($this->orm, Post::class);
+        $data = $select->fetchOne();
+
+        $this->assertInstanceOf(\DateTimeImmutable::class, $data->notNullableUpdatedAt);
+    }
+
     public function testUpdate(): void
     {
         $post = new Post();