diff -u b/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc b/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc
--- b/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc
+++ b/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc
@@ -55,7 +55,12 @@
     }
 
     if ($activeItems = $this->adapter->getActiveItems($this->facet)) {
-      $date_query = new SearchApiQueryFilter('OR');
+      $tags = array('facet:' . $this->facet['field']);
+      $operator = 'AND';
+      if ($settings['operator'] == FACETAPI_OPERATOR_OR) {
+        $operator = 'OR';
+      }
+      $date_query = $query->createFilter($operator, $tags);
       foreach($activeItems as $activeItem) {
         $field = $this->facet['field'];
         $filter = $this->createRangeFilter($activeItem['value']);
@@ -290,9 +295,6 @@
         $build[$parent]['#item_children'][$value] = &$build[$value];
         $build[$value]['#item_parents'][$parent] = $parent;
       }
-
-      // Stores the last value iterated over.
-      //$parent = $value;
     }
 
     if (empty($raw_values)) {
only in patch2:
unchanged:
--- a/contrib/search_api_facetapi/plugins/facetapi/adapter.inc
+++ b/contrib/search_api_facetapi/plugins/facetapi/adapter.inc
@@ -284,10 +284,7 @@ class SearchApiFacetapiAdapter extends FacetapiAdapter {
         '#options' => $granularity_options,
         '#default_value' => isset($options['date_granularity']) ? $options['date_granularity'] : FACETAPI_DATE_MINUTE,
       );
-
-      // Date facets don't support the "OR" operator (for now).
-      $form['global']['operator']['#access'] = FALSE;
-
+      
       $default_value = FACETAPI_DATE_YEAR;
       if (isset($options['date_granularity_min'])) {
         $default_value = $options['date_granularity_min'];