diff --git a/dvg_appointments.module b/dvg_appointments.module
index 371f18f..9fe6b6f 100644
--- a/dvg_appointments.module
+++ b/dvg_appointments.module
@@ -1087,6 +1087,9 @@ function _dvg_appointments_load_date_time_dates($element, $form_state, $product_
   if (isset($slots_element)) {
     if (!empty($slots_element) && !is_array($slots_element)) {
       $date = date('c', $slots_element);
+      // Strip the time of date.
+      // Otherwise its unique in the array of dates.
+      $date = substr($date, 0, strpos($date, 'T')) . 'T00:00:00Z';
       $submitted_date = $client_api->get_times_by_date($product_ids, $products_durations, $persons, $date);
       $dates = array_merge_recursive($dates, $submitted_date);
     }