diff --git a/AKModel/templates/admin/AKModel/default_slot_editor.html b/AKModel/templates/admin/AKModel/default_slot_editor.html
index c3004e357649fe4c226c40113e1761b2ec16c955..7d288c9dc5f6045a88bd05cd8e3a73c895a6a386 100644
--- a/AKModel/templates/admin/AKModel/default_slot_editor.html
+++ b/AKModel/templates/admin/AKModel/default_slot_editor.html
@@ -18,7 +18,8 @@
                 '{{ event.timezone }}',
                 '{{ LANGUAGE_CODE }}',
                 '{{ event.start | timezone:event.timezone | date:"Y-m-d H:i:s" }}',
-                '{{ event.end | timezone:event.timezone | date:"Y-m-d H:i:s" }}'
+                '{{ event.end | timezone:event.timezone | date:"Y-m-d H:i:s" }}',
+                '00:15:00'
             );
         });
     </script>
diff --git a/static_common/common/js/availabilities.js b/static_common/common/js/availabilities.js
index 49d3e2bfb48e69712a6e0a1839999a455b1fd31d..84376ba599876a7424dc92404229aa6d986e6b24 100644
--- a/static_common/common/js/availabilities.js
+++ b/static_common/common/js/availabilities.js
@@ -6,7 +6,7 @@
 // It was significantly changed to deal with the newer fullcalendar version, event specific timezones,
 // to remove the dependency to moments timezone and improve the visualization of deletion
 
-function createAvailabilityEditors(timezone, language, startDate, endDate) {
+function createAvailabilityEditors(timezone, language, startDate, endDate, slotResolution='00:30:00') {
     $("input.availabilities-editor-data").each(function () {
         const eventColor = '#28B62C';
 
@@ -84,6 +84,7 @@ function createAvailabilityEditors(timezone, language, startDate, endDate) {
             selectOverlap: false,
             eventOverlap: false,
             eventChange: save_events,
+            slotDuration: slotResolution,
         });
         plan.render();