diff --git a/src/Bundle/ChillCalendarBundle/Tests/RemoteCalendar/Connector/MSGraph/CalendarRangeSyncerTest.php b/src/Bundle/ChillCalendarBundle/Tests/RemoteCalendar/Connector/MSGraph/CalendarRangeSyncerTest.php
index 9f7df0c2c..1df066a2e 100644
--- a/src/Bundle/ChillCalendarBundle/Tests/RemoteCalendar/Connector/MSGraph/CalendarRangeSyncerTest.php
+++ b/src/Bundle/ChillCalendarBundle/Tests/RemoteCalendar/Connector/MSGraph/CalendarRangeSyncerTest.php
@@ -241,15 +241,12 @@ final class CalendarRangeSyncerTest extends TestCase
             $notification['value'][0],
             $user
         );
+        $expected = new \DateTimeImmutable('2022-06-10 15:30:00', new \DateTimeZone('Europe/Brussels'));
+        $this->assertEquals($expected, $calendarRange->getStartDate());
+
+        $expectedEnd = new \DateTimeImmutable('2022-06-10 17:30:00', new \DateTimeZone('Europe/Brussels'));
+        $this->assertEquals($expectedEnd, $calendarRange->getEndDate());
 
-        $this->assertStringContainsString(
-            '2022-06-10T15:30:00',
-            $calendarRange->getStartDate()->format(\DateTimeImmutable::ATOM)
-        );
-        $this->assertStringContainsString(
-            '2022-06-10T17:30:00',
-            $calendarRange->getEndDate()->format(\DateTimeImmutable::ATOM)
-        );
         $this->assertTrue($calendarRange->preventEnqueueChanges);
     }
 }