Merge pull request #2397 from AIlkiv/default-timezone-for-export-date

(fix) default timezone for export

lib/Service/SubmissionService.php

@@ -207,7 +207,7 @@ class SubmissionService {
 		$submissionEntities = array_reverse($submissionEntities);
 
 		$questions = $this->questionMapper->findByForm($form->getId());
-		$defaultTimeZone = date_default_timezone_get();
+		$defaultTimeZone = $this->config->getSystemValueString('default_timezone', 'UTC');
 
 		if (!$this->currentUser) {
 			$userTimezone = $this->config->getUserValue($form->getOwnerId(), 'core', 'timezone', $defaultTimeZone);

tests/Unit/Service/SubmissionServiceTest.php

@@ -579,7 +579,11 @@ file2.txt"
 				return $questionEntities;
 			}));
 
-		date_default_timezone_set('Europe/Berlin');
+		$this->config->expects($this->once())
+			->method('getSystemValueString')
+			->with('default_timezone', 'UTC')
+			->willReturn('Europe/Berlin');
+
 		$this->config->expects($this->once())
 			->method('getUserValue')
 			->with('currentUser', 'core', 'timezone', 'Europe/Berlin')