diff --git a/core/lib/Drupal/Core/Cache/MemoryBackend.php b/core/lib/Drupal/Core/Cache/MemoryBackend.php
index 57b8a01..43bfd70 100644
--- a/core/lib/Drupal/Core/Cache/MemoryBackend.php
+++ b/core/lib/Drupal/Core/Cache/MemoryBackend.php
@@ -207,7 +207,7 @@ public function removeBin() {
    * @return int
    */
   protected function getRequestTime() {
-    return defined('REQUEST_TIME') ? REQUEST_TIME : (int) $_SERVER['REQUEST_TIME'];
+    return defined('REQUEST_TIME') ? REQUEST_TIME : $_SERVER['REQUEST_TIME'];
   }
 
   /**
diff --git a/core/lib/Drupal/Core/Path/AliasManager.php b/core/lib/Drupal/Core/Path/AliasManager.php
index 364fe67..ce9c04b 100644
--- a/core/lib/Drupal/Core/Path/AliasManager.php
+++ b/core/lib/Drupal/Core/Path/AliasManager.php
@@ -299,6 +299,6 @@ protected function pathAliasWhitelistRebuild($path = NULL) {
    * @return int
    */
   protected function getRequestTime() {
-    return defined('REQUEST_TIME') ? REQUEST_TIME : (int) $_SERVER['REQUEST_TIME'];
+    return defined('REQUEST_TIME') ? REQUEST_TIME : $_SERVER['REQUEST_TIME'];
   }
 }
diff --git a/core/lib/Drupal/Core/Render/RenderCache.php b/core/lib/Drupal/Core/Render/RenderCache.php
index 934582c..7765704 100644
--- a/core/lib/Drupal/Core/Render/RenderCache.php
+++ b/core/lib/Drupal/Core/Render/RenderCache.php
@@ -287,7 +287,7 @@ public function set(array &$elements, array $pre_bubbling_elements) {
    * @see \Drupal\Core\Cache\CacheBackendInterface::set()
    */
   protected function maxAgeToExpire($max_age) {
-    return ($max_age === Cache::PERMANENT) ? Cache::PERMANENT : (int) $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME') + $max_age;
+    return ($max_age === Cache::PERMANENT) ? Cache::PERMANENT : $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME') + $max_age;
   }
 
   /**
diff --git a/core/modules/automated_cron/src/EventSubscriber/AutomatedCron.php b/core/modules/automated_cron/src/EventSubscriber/AutomatedCron.php
index 5b26919..1e27fc5 100644
--- a/core/modules/automated_cron/src/EventSubscriber/AutomatedCron.php
+++ b/core/modules/automated_cron/src/EventSubscriber/AutomatedCron.php
@@ -66,7 +66,7 @@ public function onTerminate(PostResponseEvent $event) {
     $interval = $this->config->get('interval');
     if ($interval > 0) {
       $cron_next = $this->state->get('system.cron_last', 0) + $interval;
-      if ((int) $event->getRequest()->server->get('REQUEST_TIME') > $cron_next) {
+      if ($event->getRequest()->server->get('REQUEST_TIME') > $cron_next) {
         $this->cron->run();
       }
     }
diff --git a/core/modules/user/src/PrivateTempStore.php b/core/modules/user/src/PrivateTempStore.php
index 7215805..777f998 100644
--- a/core/modules/user/src/PrivateTempStore.php
+++ b/core/modules/user/src/PrivateTempStore.php
@@ -128,7 +128,7 @@ public function set($key, $value) {
     $value = (object) array(
       'owner' => $this->getOwner(),
       'data' => $value,
-      'updated' => (int) $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME'),
+      'updated' => $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME'),
     );
     $this->storage->setWithExpire($key, $value, $this->expire);
     $this->lockBackend->release($key);
diff --git a/core/modules/user/src/SharedTempStore.php b/core/modules/user/src/SharedTempStore.php
index 07e4756..54dab48 100644
--- a/core/modules/user/src/SharedTempStore.php
+++ b/core/modules/user/src/SharedTempStore.php
@@ -150,7 +150,7 @@ public function setIfNotExists($key, $value) {
     $value = (object) array(
       'owner' => $this->owner,
       'data' => $value,
-      'updated' => (int) $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME'),
+      'updated' => $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME'),
     );
     return $this->storage->setWithExpireIfNotExists($key, $value, $this->expire);
   }
@@ -202,7 +202,7 @@ public function set($key, $value) {
     $value = (object) array(
       'owner' => $this->owner,
       'data' => $value,
-      'updated' => (int) $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME'),
+      'updated' => $this->requestStack->getMasterRequest()->server->get('REQUEST_TIME'),
     );
     $this->storage->setWithExpire($key, $value, $this->expire);
     $this->lockBackend->release($key);
diff --git a/core/modules/user/tests/src/Unit/PrivateTempStoreTest.php b/core/modules/user/tests/src/Unit/PrivateTempStoreTest.php
index a2d3d95..33117a5 100644
--- a/core/modules/user/tests/src/Unit/PrivateTempStoreTest.php
+++ b/core/modules/user/tests/src/Unit/PrivateTempStoreTest.php
@@ -89,7 +89,7 @@ protected function setUp() {
     $this->ownObject = (object) array(
       'data' => 'test_data',
       'owner' => $this->currentUser->id(),
-      'updated' => (int) $request->server->get('REQUEST_TIME'),
+      'updated' => $request->server->get('REQUEST_TIME'),
     );
 
     // Clone the object but change the owner.
diff --git a/core/modules/user/tests/src/Unit/SharedTempStoreTest.php b/core/modules/user/tests/src/Unit/SharedTempStoreTest.php
index effc4f9..559cd79 100644
--- a/core/modules/user/tests/src/Unit/SharedTempStoreTest.php
+++ b/core/modules/user/tests/src/Unit/SharedTempStoreTest.php
@@ -84,7 +84,7 @@ protected function setUp() {
     $this->ownObject = (object) array(
       'data' => 'test_data',
       'owner' => $this->owner,
-      'updated' => (int) $request->server->get('REQUEST_TIME'),
+      'updated' => $request->server->get('REQUEST_TIME'),
     );
 
     // Clone the object but change the owner.
diff --git a/core/modules/views/src/Plugin/views/cache/CachePluginBase.php b/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
index f04232e..a7e31f6 100644
--- a/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
+++ b/core/modules/views/src/Plugin/views/cache/CachePluginBase.php
@@ -114,7 +114,7 @@ public function cacheSet($type) {
           'total_rows' => isset($this->view->total_rows) ? $this->view->total_rows : 0,
           'current_page' => $this->view->getCurrentPage(),
         );
-        $expire = ($this->cacheSetMaxAge($type) === Cache::PERMANENT) ? Cache::PERMANENT : (int) $this->view->getRequest()->server->get('REQUEST_TIME') + $this->cacheSetMaxAge($type);
+        $expire = ($this->cacheSetMaxAge($type) === Cache::PERMANENT) ? Cache::PERMANENT : $this->view->getRequest()->server->get('REQUEST_TIME') + $this->cacheSetMaxAge($type);
         \Drupal::cache($this->resultsBin)->set($this->generateResultsKey(), $data, $expire, $this->getCacheTags());
         break;
     }
diff --git a/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php b/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php
index c6d7726..cd50b88 100644
--- a/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php
+++ b/core/modules/views_ui/tests/src/Unit/ViewUIObjectTest.php
@@ -99,7 +99,7 @@ public function testIsLocked() {
     $lock = (object) array(
       'owner' => 2,
       'data' => array(),
-      'updated' => (int) $_SERVER['REQUEST_TIME'],
+      'updated' => $_SERVER['REQUEST_TIME'],
     );
     $view_ui->lock = $lock;
     $this->assertTrue($view_ui->isLocked());
@@ -108,7 +108,7 @@ public function testIsLocked() {
     $lock = (object) array(
       'owner' => 1,
       'data' => array(),
-      'updated' => (int) $_SERVER['REQUEST_TIME'],
+      'updated' => $_SERVER['REQUEST_TIME'],
     );
     $view_ui->lock = $lock;
     $this->assertFalse($view_ui->isLocked());
diff --git a/core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php b/core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php
index 1d8edcb..1161930 100644
--- a/core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php
+++ b/core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php
@@ -121,7 +121,7 @@ public function testGetFromCache() {
 
     $cache = (object) array(
       'data' => array($key => $value),
-      'created' => (int) $_SERVER['REQUEST_TIME'],
+      'created' => $_SERVER['REQUEST_TIME'],
     );
     $this->cacheBackend->expects($this->once())
       ->method('get')
@@ -229,7 +229,7 @@ public function testUpdateCacheInvalidatedConflict() {
 
     $cache = (object) array(
       'data' => array($key => $value),
-      'created' => (int) $_SERVER['REQUEST_TIME'],
+      'created' => $_SERVER['REQUEST_TIME'],
     );
     $this->cacheBackend->expects($this->at(0))
       ->method('get')
@@ -250,7 +250,7 @@ public function testUpdateCacheInvalidatedConflict() {
       ->will($this->returnValue(TRUE));
     $cache = (object) array(
       'data' => array($key => $value),
-      'created' => (int) $_SERVER['REQUEST_TIME'] + 1,
+      'created' => $_SERVER['REQUEST_TIME'] + 1,
     );
     $this->cacheBackend->expects($this->at(0))
       ->method('get')
@@ -286,7 +286,7 @@ public function testUpdateCacheMerge() {
       ->will($this->returnValue(TRUE));
     $cache = (object) array(
       'data' => array('other key' => 'other value'),
-      'created' => (int) $_SERVER['REQUEST_TIME'] + 1,
+      'created' => $_SERVER['REQUEST_TIME'] + 1,
     );
     $this->cacheBackend->expects($this->at(0))
       ->method('get')
@@ -312,7 +312,7 @@ public function testUpdateCacheDelete() {
 
     $cache = (object) array(
       'data' => array($key => $value),
-      'created' => (int) $_SERVER['REQUEST_TIME'],
+      'created' => $_SERVER['REQUEST_TIME'],
     );
     $this->cacheBackend->expects($this->at(0))
       ->method('get')
diff --git a/core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php b/core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php
index 11e1600..f73d21a 100644
--- a/core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php
+++ b/core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php
@@ -45,7 +45,7 @@ public function testGetDoesntHitConsistentBackend() {
     $consistent_cache = $this->getMock('Drupal\Core\Cache\CacheBackendInterface');
     $timestamp_cid = ChainedFastBackend::LAST_WRITE_TIMESTAMP_PREFIX . 'cache_foo';
     // Use the request time because that is what we will be comparing against.
-    $timestamp_item = (object) array('cid' => $timestamp_cid, 'data' => (int) $_SERVER['REQUEST_TIME'] - 60);
+    $timestamp_item = (object) array('cid' => $timestamp_cid, 'data' => $_SERVER['REQUEST_TIME'] - 60);
     $consistent_cache->expects($this->once())
       ->method('get')->with($timestamp_cid)
       ->will($this->returnValue($timestamp_item));
diff --git a/core/tests/Drupal/Tests/Core/Path/AliasManagerTest.php b/core/tests/Drupal/Tests/Core/Path/AliasManagerTest.php
index cc041ce..ade15ff 100644
--- a/core/tests/Drupal/Tests/Core/Path/AliasManagerTest.php
+++ b/core/tests/Drupal/Tests/Core/Path/AliasManagerTest.php
@@ -207,7 +207,7 @@ public function testGetAliasByPathNoMatch() {
     // This needs to write out the cache.
     $this->cache->expects($this->once())
       ->method('set')
-      ->with($this->cacheKey, array($language->getId() => array($path)), (int) $_SERVER['REQUEST_TIME'] + (60 * 60 * 24));
+      ->with($this->cacheKey, array($language->getId() => array($path)), $_SERVER['REQUEST_TIME'] + (60 * 60 * 24));
 
     $this->aliasManager->writeCache();
   }
@@ -245,7 +245,7 @@ public function testGetAliasByPathMatch() {
     // This needs to write out the cache.
     $this->cache->expects($this->once())
       ->method('set')
-      ->with($this->cacheKey, array($language->getId() => array($path)), (int) $_SERVER['REQUEST_TIME'] + (60 * 60 * 24));
+      ->with($this->cacheKey, array($language->getId() => array($path)), $_SERVER['REQUEST_TIME'] + (60 * 60 * 24));
 
     $this->aliasManager->writeCache();
   }
diff --git a/core/tests/Drupal/Tests/Core/Render/RendererTest.php b/core/tests/Drupal/Tests/Core/Render/RendererTest.php
index 48b394e..619d8cc 100644
--- a/core/tests/Drupal/Tests/Core/Render/RendererTest.php
+++ b/core/tests/Drupal/Tests/Core/Render/RendererTest.php
@@ -694,7 +694,7 @@ public function testRenderCacheMaxAge($max_age, $is_render_cached, $render_cache
   public function providerTestRenderCacheMaxAge() {
     return [
       [0, FALSE, NULL],
-      [60, TRUE, (int) $_SERVER['REQUEST_TIME'] + 60],
+      [60, TRUE, $_SERVER['REQUEST_TIME'] + 60],
       [Cache::PERMANENT, TRUE, -1],
     ];
   }
diff --git a/core/tests/Drupal/Tests/Core/Render/RendererTestBase.php b/core/tests/Drupal/Tests/Core/Render/RendererTestBase.php
index 199d170..d445792 100644
--- a/core/tests/Drupal/Tests/Core/Render/RendererTestBase.php
+++ b/core/tests/Drupal/Tests/Core/Render/RendererTestBase.php
@@ -226,7 +226,7 @@ protected function setupMemoryCache() {
   protected function setUpRequest($method = 'GET') {
     $request = Request::create('/', $method);
     // Ensure that the request time is set as expected.
-    $request->server->set('REQUEST_TIME', (int) $_SERVER['REQUEST_TIME']);
+    $request->server->set('REQUEST_TIME', $_SERVER['REQUEST_TIME']);
     $this->requestStack->push($request);
   }