diff --git a/app/code/Magento/Reports/Model/Resource/Order/Collection.php b/app/code/Magento/Reports/Model/Resource/Order/Collection.php
index 0dd3a60c83761..17ff425618942 100644
--- a/app/code/Magento/Reports/Model/Resource/Order/Collection.php
+++ b/app/code/Magento/Reports/Model/Resource/Order/Collection.php
@@ -900,8 +900,8 @@ public function addCreateAtPeriodFilter($period)
         $this->addFieldToFilter(
             $fieldToFilter,
             [
-                'from' => $from->format(\Magento\Framework\Stdlib\DateTime::DATETIME_INTERNAL_FORMAT),
-                'to' => $to->format(\Magento\Framework\Stdlib\DateTime::DATETIME_INTERNAL_FORMAT)
+                'from' => $from->format(\Magento\Framework\Stdlib\DateTime::DATETIME_PHP_FORMAT),
+                'to' => $to->format(\Magento\Framework\Stdlib\DateTime::DATETIME_PHP_FORMAT)
             ]
         );
 
diff --git a/dev/tools/performance-toolkit/fixtures/orders.php b/dev/tools/performance-toolkit/fixtures/orders.php
index 041fcea755125..db077ab2fbbdd 100644
--- a/dev/tools/performance-toolkit/fixtures/orders.php
+++ b/dev/tools/performance-toolkit/fixtures/orders.php
@@ -190,7 +190,9 @@ public function execute()
             $country = 'US';
             $zip = '11111';
             $phone = '911';
-            $time = date("Y-m-d h:i:s");
+            $dateStart = new \DateTime();
+            $dateStart->setTimezone(new \DateTimeZone('Etc/UTC'));
+            $time = $dateStart->format(\Magento\Framework\Stdlib\DateTime::DATETIME_PHP_FORMAT);
 
             $simpleProductIdLen[0] = strlen($simpleProductId[0]($entityId));
             $simpleProductIdLen[1] = strlen($simpleProductId[1]($entityId));