diff --git a/helpers/Html.php b/helpers/Html.php
index e145ed8..1008be6 100644
--- a/helpers/Html.php
+++ b/helpers/Html.php
@@ -55,6 +55,11 @@ public static function decodeMediaItemUrls($text)
         return str_replace($module->mediaUrlReplacement, $module->mediaUrlPrefix, $text);
     }
 
+    /**
+     * @param $model
+     * @param bool $disabled
+     * @return string
+     */
     public static function asFab($model, $disabled = false){
         $formatter = new Formatter();
         return $formatter->asToggle($model->status, $disabled);
diff --git a/models/Article.php b/models/Article.php
index c57aa2c..8d1528a 100644
--- a/models/Article.php
+++ b/models/Article.php
@@ -129,12 +129,11 @@ public function rules()
             [['category_id'], 'required'],
             [['slug'], 'unique'],
             [['published_at'], 'default', 'value' => time()],
-            [['published_at'], 'filter', 'filter' => 'strtotime'],
             [['category_id'], 'exist', 'targetClass' => ArticleCategory::className(), 'targetAttribute' => 'id'],
             [['author_id', 'updater_id', 'position', 'status'], 'integer'],
             [['slug', 'thumbnail_base_url', 'thumbnail_path', 'url'], 'string', 'max' => 2024],
             [['view'], 'string', 'max' => 255],
-            [['attachments', 'thumbnail'], 'safe']
+            [['attachments', 'thumbnail', 'published_at'], 'safe']
         ];
     }
 
diff --git a/models/TranslatableModel.php b/models/TranslatableModel.php
index fccbbe2..db26753 100644
--- a/models/TranslatableModel.php
+++ b/models/TranslatableModel.php
@@ -59,6 +59,10 @@ public function load($postData, $formName = null)
             return false;
         }
 
+        if($this->hasAttribute('published_at')){
+            $this->published_at = $this->published_at ? strtotime($this->published_at) : time();
+        }
+
         $className = \yii\helpers\StringHelper::basename(static::$translateModel);
         $translations = ArrayHelper::getValue($postData, $className);
         $this->newTranslations = [];