diff --git a/application/views/backend/services.php b/application/views/backend/services.php
index 80dd48ed..444d2c6d 100755
--- a/application/views/backend/services.php
+++ b/application/views/backend/services.php
@@ -116,7 +116,7 @@
                             <?= lang('duration_minutes') ?>
                             <span class="text-danger">*</span>
                         </label>
-                        <input id="service-duration" class="form-control required" type="number" min="5">
+                        <input id="service-duration" class="form-control required" type="number" min="<?= EVENT_MINIMUM_DURATION ?>">
                     </div>
 
                     <div class="form-group">
diff --git a/assets/css/backend.css b/assets/css/backend.css
index 7351c02b..03de3a70 100644
--- a/assets/css/backend.css
+++ b/assets/css/backend.css
@@ -427,6 +427,7 @@ body legend {
 #calendar .fc-event {
     border: 1px solid #4790CA;
     background-color: #4790CA;
+    min-height: 12px; 
 }
 
 #existing-customers-list {
diff --git a/assets/js/backend_calendar_default_view.js b/assets/js/backend_calendar_default_view.js
index 83e32d35..9f9275be 100755
--- a/assets/js/backend_calendar_default_view.js
+++ b/assets/js/backend_calendar_default_view.js
@@ -1413,7 +1413,9 @@ window.BackendCalendarDefaultView = window.BackendCalendarDefaultView || {};
             height: getCalendarHeight(),
             editable: true,
             firstDay: firstWeekdayNumber,
+            slotDuration: '00:15:00', 
             snapDuration: '00:15:00',
+            slotLabelInterval: '01:00',
             timeFormat: timeFormat,
             slotLabelFormat: slotTimeFormat,
             allDayText: EALang.all_day,