.../tests/src/Unit/Normalizer/DateTimeIso8601NormalizerTest.php         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/modules/serialization/tests/src/Unit/Normalizer/DateTimeIso8601NormalizerTest.php b/core/modules/serialization/tests/src/Unit/Normalizer/DateTimeIso8601NormalizerTest.php
index 1820b29..41eb079 100644
--- a/core/modules/serialization/tests/src/Unit/Normalizer/DateTimeIso8601NormalizerTest.php
+++ b/core/modules/serialization/tests/src/Unit/Normalizer/DateTimeIso8601NormalizerTest.php
@@ -177,7 +177,7 @@ public function testDenormalizeValidFormats($value, $expected) {
    */
   public function providerTestDenormalizeValidFormats() {
     $data = [];
-    $data["denormalized dates have the site's timezone"] = ['2016-11-06', new \DateTimeImmutable('2016-11-06T00:00:00+11:00')];
+    $data["denormalized dates have the site's timezone"] = ['2016-11-06', new \DateTimeImmutable('2016-11-06T00:00:00+00:00')];
     return $data;
   }