Merge remote-tracking branch 'origin/MAGETWO-65736' into MAGETWO-65736

Author: zakdma

app/code/Magento/Reports/Test/Unit/Model/ResourceModel/Report/CollectionTest.php

@@ -143,38 +143,38 @@ public function intervalsDataProvider()
         return [
             [
                 '_period' => 'day',
-                '_from' => new \DateTime('-3 day'),
-                '_to' => new \DateTime('+3 day'),
+                '_from' => new \DateTime('-3 day', new \DateTimeZone('UTC')),
+                '_to' => new \DateTime('+3 day', new \DateTimeZone('UTC')),
                 'size' => 7
             ],
             [
                 '_period' => 'month',
-                '_from' => new \DateTime('2015-01-15 11:11:11'),
-                '_to' => new \DateTime('2015-01-25 11:11:11'),
+                '_from' => new \DateTime('2015-01-15 11:11:11', new \DateTimeZone('UTC')),
+                '_to' => new \DateTime('2015-01-25 11:11:11', new \DateTimeZone('UTC')),
                 'size' => 1
             ],
             [
                 '_period' => 'month',
-                '_from' => new \DateTime('2015-01-15 11:11:11'),
-                '_to' => new \DateTime('2015-02-25 11:11:11'),
+                '_from' => new \DateTime('2015-01-15 11:11:11', new \DateTimeZone('UTC')),
+                '_to' => new \DateTime('2015-02-25 11:11:11', new \DateTimeZone('UTC')),
                 'size' => 2
             ],
             [
                 '_period' => 'year',
-                '_from' => new \DateTime('2015-01-15 11:11:11'),
-                '_to' => new \DateTime('2015-01-25 11:11:11'),
+                '_from' => new \DateTime('2015-01-15 11:11:11', new \DateTimeZone('UTC')),
+                '_to' => new \DateTime('2015-01-25 11:11:11', new \DateTimeZone('UTC')),
                 'size' => 1
             ],
             [
                 '_period' => 'year',
-                '_from' => new \DateTime('2014-01-15 11:11:11'),
-                '_to' => new \DateTime('2015-01-25 11:11:11'),
+                '_from' => new \DateTime('2014-01-15 11:11:11', new \DateTimeZone('UTC')),
+                '_to' => new \DateTime('2015-01-25 11:11:11', new \DateTimeZone('UTC')),
                 'size' => 2
             ],
             [
                 '_period' => null,
-                '_from' => new \DateTime('-3 day'),
-                '_to' => new \DateTime('+3 day'),
+                '_from' => new \DateTime('-3 day', new \DateTimeZone('UTC')),
+                '_to' => new \DateTime('+3 day', new \DateTimeZone('UTC')),
                 'size' => 0
             ]
         ];
@@ -183,9 +183,6 @@ public function intervalsDataProvider()
     /**
      * Format datetime.
      *
-     * Force Standard Time to eliminate DateTime "Daylight Saving Time problem"
-     * https://bugs.php.net/bug.php?id=71913&edit=1
-     *
      * @return string
      */
     public function formatDateTime()
@@ -201,6 +198,6 @@ public function formatDateTime()
             new \DateTimeZone('America/Los_Angeles')
         );
 
-        return $formatter->format($dateStart)  . ' ST';
+        return $formatter->format($dateStart);
     }
 }