MAGETWO-51881: Widget of type Catalog Events Carousel is not displayed in page

- added details to exception caused by incorrect date format

Author: Olga Kopylova

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

@@ -45,7 +45,7 @@ public function filter($value)
             $dateTime = new \DateTime($value);
             return $dateTime->format('Y-m-d H:i:s');
         } catch (\Exception $e) {
-            throw new \Exception((string)__("Invalid input datetime format of value '%1': '%2'", $value, $e->getMessage()));
+            throw new \Exception("Invalid input datetime format of value '$value'", $e->getCode(), $e);
         }
     }
 }