diff --git a/core/modules/field/src/Plugin/migrate/process/d7/FieldSettings.php b/core/modules/field/src/Plugin/migrate/process/d7/FieldSettings.php
index a363404..63f3f27 100644
--- a/core/modules/field/src/Plugin/migrate/process/d7/FieldSettings.php
+++ b/core/modules/field/src/Plugin/migrate/process/d7/FieldSettings.php
@@ -28,6 +28,7 @@ public function transform($value, MigrateExecutableInterface $migrate_executable
 
       case 'date':
       case 'datetime':
+      case 'datestamp':
         if ($value['granularity']['hour'] === 0
             && $value['granularity']['minute'] === 0
             && $value['granularity']['second'] === 0) {
diff --git a/core/modules/field/tests/src/Kernel/Migrate/d7/MigrateFieldTest.php b/core/modules/field/tests/src/Kernel/Migrate/d7/MigrateFieldTest.php
index 7002601..9f0a458 100644
--- a/core/modules/field/tests/src/Kernel/Migrate/d7/MigrateFieldTest.php
+++ b/core/modules/field/tests/src/Kernel/Migrate/d7/MigrateFieldTest.php
@@ -124,7 +124,7 @@ public function testFields() {
     $field = FieldStorageConfig::load('node.field_date');
     $this->assertSame('datetime', $field->getSetting('datetime_type'));
     $field = FieldStorageConfig::load('node.field_date_with_end_time');
-    $this->assertSame('datetime', $field->getSetting('datetime_type'));
+    $this->assertNull($field->getSetting('datetime_type'));
     $field = FieldStorageConfig::load('node.field_date_without_time');
     $this->assertSame('date', $field->getSetting('datetime_type'));
     $field = FieldStorageConfig::load('node.field_datetime_without_time');