diff --git a/core/modules/datetime/src/DateTimeComputed.php b/core/modules/datetime/src/DateTimeComputed.php
index 6939994..62997b6 100644
--- a/core/modules/datetime/src/DateTimeComputed.php
+++ b/core/modules/datetime/src/DateTimeComputed.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\datetime;
 
+use Drupal\datetime\Plugin\Field\FieldType\DateTimeItem;
 use Drupal\Core\Datetime\DrupalDateTime;
 use Drupal\Core\TypedData\DataDefinitionInterface;
 use Drupal\Core\TypedData\TypedDataInterface;
@@ -40,14 +41,28 @@ public function getValue($langcode = NULL) {
       return $this->date;
     }
 
+    /** @var \Drupal\Core\Field\FieldItemInterface $item */
     $item = $this->getParent();
     $value = $item->{($this->definition->getSetting('date source'))};
 
-    $storage_format = $item->getFieldDefinition()->getSetting('datetime_type') == 'date' ? DATETIME_DATE_STORAGE_FORMAT : DATETIME_DATETIME_STORAGE_FORMAT;
+    $datetime_type = $item->getFieldDefinition()->getSetting('datetime_type');
+    $storage_format = $datetime_type === DateTimeItem::DATETIME_TYPE_DATE ? DATETIME_DATE_STORAGE_FORMAT : DATETIME_DATETIME_STORAGE_FORMAT;
     try {
       $date = DrupalDateTime::createFromFormat($storage_format, $value, DATETIME_STORAGE_TIMEZONE);
       if ($date instanceof DrupalDateTime && !$date->hasErrors()) {
         $this->date = $date;
+        // If the format did not include an explicit time portion, then the
+        // time will be set from the current time instead. For consistency, we
+        // set the time to 12:00:00 UTC for date-only fields. This is used so
+        // that the local date  portion is the same, across nearly all time
+        // zones.
+        // @see datetime_date_default_time()
+        // @see http://php.net/manual/en/datetime.createfromformat.php
+        // @todo Update comment and/or code when per the chosen solution in
+        //   https://www.drupal.org/node/2830094
+        if ($datetime_type === DateTimeItem::DATETIME_TYPE_DATE) {
+          $this->date->setTime(12, 0, 0);
+        }
       }
     }
     catch (\Exception $e) {
diff --git a/core/modules/datetime_range/tests/src/Kernel/DateRangeTest.php b/core/modules/datetime_range/tests/src/Kernel/DateRangeTest.php
new file mode 100644
index 0000000..2484e8a
--- /dev/null
+++ b/core/modules/datetime_range/tests/src/Kernel/DateRangeTest.php
@@ -0,0 +1,113 @@
+<?php
+
+namespace Drupal\Tests\datetime_range\Kernel;
+
+use Drupal\Component\Utility\Unicode;
+use Drupal\Core\Entity\Entity\EntityViewDisplay;
+use Drupal\datetime\Plugin\Field\FieldType\DateTimeItem;
+use Drupal\entity_test\Entity\EntityTest;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Test datetime range via API.
+ *
+ * @group datetime
+ */
+class DateRangeTest extends KernelTestBase {
+
+  /**
+   * A field storage to use in this test class.
+   *
+   * @var \Drupal\field\Entity\FieldStorageConfig
+   */
+  protected $fieldStorage;
+
+  /**
+   * The field used in this test class.
+   *
+   * @var \Drupal\field\Entity\FieldConfig
+   */
+  protected $field;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = [
+    'datetime',
+    'datetime_range',
+    'entity_test',
+    'field',
+    'system',
+    'user',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installEntitySchema('entity_test');
+    $this->installEntitySchema('user');
+    $this->installConfig(['system']);
+    $this->installSchema('system', ['sequences', 'key_value']);
+
+    // Add a datetime range field.
+    $this->fieldStorage = FieldStorageConfig::create([
+      'field_name' => Unicode::strtolower($this->randomMachineName()),
+      'entity_type' => 'entity_test',
+      'type' => 'daterange',
+      'settings' => ['datetime_type' => DateTimeItem::DATETIME_TYPE_DATE],
+    ]);
+    $this->fieldStorage->save();
+
+    $this->field = FieldConfig::create([
+      'field_storage' => $this->fieldStorage,
+      'bundle' => 'entity_test',
+      'required' => TRUE,
+    ]);
+    $this->field->save();
+
+    $display_options = [
+      'type' => 'daterange_default',
+      'label' => 'hidden',
+      'settings' => [
+        'format_type' => 'fallback',
+        'separator' => 'UNTRANSLATED',
+      ],
+    ];
+    EntityViewDisplay::create([
+      'targetEntityType' => $this->field->getTargetEntityTypeId(),
+      'bundle' => $this->field->getTargetBundle(),
+      'mode' => 'default',
+      'status' => TRUE,
+    ])->setComponent($this->fieldStorage->getName(), $display_options)
+      ->save();
+  }
+
+  /**
+   * Tests that the same dates have the same value.
+   */
+  public function testDateRangeEquality() {
+    $field_name = $this->fieldStorage->getName();
+    // Create an entity.
+    $entity = EntityTest::create([
+      'name' => $this->randomString(),
+      $field_name => [
+        'value' => '2016-09-21',
+        'end_value' => '2016-09-21',
+      ],
+    ]);
+
+    // Dates are saved without a time value. When they are converted back into
+    // a \Drupal\datetime\DateTimeComputed object they should all have the same
+    // time.
+    $start_date = $entity->{$field_name}->start_date;
+    sleep(1);
+    $end_date = $entity->{$field_name}->end_date;
+    $this->assertEquals($start_date->format('U'), $end_date->format('U'));
+  }
+
+}