diff --git a/src/Psl/Clock/PsrClock.php b/src/Psl/Clock/PsrClock.php
index 48155e42..82d5e269 100644
--- a/src/Psl/Clock/PsrClock.php
+++ b/src/Psl/Clock/PsrClock.php
@@ -21,7 +21,6 @@ public function now(): DateTime\DateTimeInterface
         $timestamp = DateTime\Timestamp::fromParts($nativeDateTime->getTimestamp());
 
         $timezone = $nativeDateTime->getTimezone();
-        invariant($timezone !== false, 'Could not get the timezone object.');
 
         $timezone = DateTime\Timezone::from($timezone->getName());