diff --git a/core/modules/datetime/datetime.module b/core/modules/datetime/datetime.module
index f25140f..7940ffd 100755
--- a/core/modules/datetime/datetime.module
+++ b/core/modules/datetime/datetime.module
@@ -23,6 +23,11 @@
 const DATETIME_DATE_STORAGE_FORMAT = 'Y-m-d';
 
 /**
+ * Defines the format that time should be stored in.
+ */
+const DATETIME_TIME_STORAGE_FORMAT = 'H:i:s';
+
+/**
  * Implements hook_help().
  */
 function datetime_help($route_name, RouteMatchInterface $route_match) {
diff --git a/core/modules/datetime/src/Plugin/Field/FieldType/DateTimeItem.php b/core/modules/datetime/src/Plugin/Field/FieldType/DateTimeItem.php
index f07d564..6cda2cf 100755
--- a/core/modules/datetime/src/Plugin/Field/FieldType/DateTimeItem.php
+++ b/core/modules/datetime/src/Plugin/Field/FieldType/DateTimeItem.php
@@ -40,6 +40,11 @@ public static function defaultStorageSettings() {
    * Value for the 'datetime_type' setting: store a date and time.
    */
   const DATETIME_TYPE_DATETIME = 'datetime';
+  
+   /**
+   * Value for the 'datetime_type' setting: store a date and time.
+   */
+  const DATETIME_TYPE_TIME = 'time';
 
   /**
    * {@inheritdoc}
@@ -91,6 +96,7 @@ public function storageSettingsForm(array &$form, FormStateInterface $form_state
       '#options' => array(
         static::DATETIME_TYPE_DATETIME => t('Date and time'),
         static::DATETIME_TYPE_DATE => t('Date only'),
+        static::DATETIME_TYPE_TIME => t('Time only'),
       ),
       '#disabled' => $has_data,
     );
@@ -110,7 +116,9 @@ public static function generateSampleValue(FieldDefinitionInterface $field_defin
     if ($type == DateTimeItem::DATETIME_TYPE_DATE) {
       $values['value'] = gmdate(DATETIME_DATE_STORAGE_FORMAT, $timestamp);
     }
-    else {
+    elseif ($type == DateTimeItem::DATETIME_TYPE_TIME) {
+      $values['value'] = gmdate(DATETIME_TIME_STORAGE_FORMAT, $timestamp);
+    }else {
       $values['value'] = gmdate(DATETIME_DATETIME_STORAGE_FORMAT, $timestamp);
     }
     return $values;
diff --git a/core/modules/datetime/src/Plugin/Field/FieldWidget/DateTimeDefaultWidget.php b/core/modules/datetime/src/Plugin/Field/FieldWidget/DateTimeDefaultWidget.php
index 89381ab..85e2004 100755
--- a/core/modules/datetime/src/Plugin/Field/FieldWidget/DateTimeDefaultWidget.php
+++ b/core/modules/datetime/src/Plugin/Field/FieldWidget/DateTimeDefaultWidget.php
@@ -67,7 +67,14 @@ public function formElement(FieldItemListInterface $items, $delta, array $elemen
         $date_format = $this->dateStorage->load('html_date')->getPattern();
         $time_format = '';
         break;
-
+      
+      case DateTimeItem::DATETIME_TYPE_TIME:
+        $date_type = 'none';
+        $time_type = 'time';
+        $date_format = $this->dateStorage->load('html_date')->getPattern();
+        $time_format = '';
+        break;
+      
       default:
         $date_type = 'date';
         $time_type = 'time';