diff --git a/workflow/engine/methods/cases/caseHistory_Ajax.php b/workflow/engine/methods/cases/caseHistory_Ajax.php
index a095ebd2f..c6c4cc446 100644
--- a/workflow/engine/methods/cases/caseHistory_Ajax.php
+++ b/workflow/engine/methods/cases/caseHistory_Ajax.php
@@ -49,7 +49,7 @@ switch ($actionAjax) {
         }
 
         $response = new stdclass();
-        $response->data = DateTime::convertUtcToTimeZone($process);
+        $response->data = $process;
         $response->totalCount = $totalCount;
 
         echo G::json_encode($response);
diff --git a/workflow/engine/src/ProcessMaker/Services/Api/Cases.php b/workflow/engine/src/ProcessMaker/Services/Api/Cases.php
index 3518785db..19c9814e7 100644
--- a/workflow/engine/src/ProcessMaker/Services/Api/Cases.php
+++ b/workflow/engine/src/ProcessMaker/Services/Api/Cases.php
@@ -1231,7 +1231,7 @@ class Cases extends Api
             $case->setFormatFieldNameInUppercase(false);
             $response = $case->getTasks($appUid);
 
-            return DateTime::convertUtcToIso8601($response, $this->arrayFieldIso8601);
+            return DateTime::convertUtcToTimeZone($response);
         } catch (Exception $e) {
             throw new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage());
         }