diff --git a/core/modules/user/tests/src/Kernel/WhosOnlineBlockTest.php b/core/modules/user/tests/src/Kernel/WhosOnlineBlockTest.php
index 1f73a670f1..63e8d74bad 100644
--- a/core/modules/user/tests/src/Kernel/WhosOnlineBlockTest.php
+++ b/core/modules/user/tests/src/Kernel/WhosOnlineBlockTest.php
@@ -72,6 +72,7 @@ protected function setUp() {
    * Test the Who's Online block.
    */
   public function testWhosOnlineBlock() {
+    $request_time = \Drupal::time()->getRequestTime();
     // Generate users.
     $user1 = User::create([
       'name' => 'user1',
@@ -79,7 +80,7 @@ public function testWhosOnlineBlock() {
     ]);
     $user1->addRole('administrator');
     $user1->activate();
-    $user1->setLastAccessTime(\Drupal::time()->getRequestTime());
+    $user1->setLastAccessTime($request_time);
     $user1->save();
 
     $user2 = User::create([
@@ -87,7 +88,7 @@ public function testWhosOnlineBlock() {
       'mail' => 'user2@example.com',
     ]);
     $user2->activate();
-    $user2->setLastAccessTime(\Drupal::time()->getRequestTime() + 1);
+    $user2->setLastAccessTime($request_time + 1);
     $user2->save();
 
     $user3 = User::create([
@@ -96,7 +97,7 @@ public function testWhosOnlineBlock() {
     ]);
     $user3->activate();
     // Insert an inactive user who should not be seen in the block.
-    $inactive_time = \Drupal::time()->getRequestTime() - (15 * 60) - 1;
+    $inactive_time = $request_time - (60 * 60);
     $user3->setLastAccessTime($inactive_time);
     $user3->save();