Merge remote-tracking branch 'origin/MAGETWO-51881-catalog-events-carousel-widget' into PR_Branch

Author: monkeysee

dev/tests/functional/tests/app/Magento/Backend/Test/Fixture/Source/Date.php

@@ -12,7 +12,7 @@
  * Class Date.
  *
  * Data keys:
- *  - pattern (Format a local time/date with delta, e.g. 'm-d-Y -3 days' = current day - 3 days)
+ *  - pattern (Format a local time/date with delta, e.g. 'm/d/Y -3 days' = current day - 3 days)
  */
 class Date extends DataSource
 {

lib/internal/Magento/Framework/Stdlib/DateTime/Filter/DateTime.php

@@ -37,15 +37,15 @@ public function __construct(\Magento\Framework\Stdlib\DateTime\TimezoneInterface
      *
      * @param string $value
      * @return string
-     * @throws LocalizedException
+     * @throws \Exception
      */
     public function filter($value)
     {
         try {
-            $value = new \DateTime($value);
-            return $value->format('Y-m-d H:i:s');
+            $dateTime = new \DateTime($value);
+            return $dateTime->format('Y-m-d H:i:s');
         } catch (\Exception $e) {
-            throw new \Exception('Invalid input datetime format');
+            throw new \Exception("Invalid input datetime format of value '$value'", $e->getCode(), $e);
         }
     }
 }