diff --git a/data/www/js/slideshow/slides.js b/data/www/js/slideshow/slides.js
index 9829038..5e58214 100644
--- a/data/www/js/slideshow/slides.js
+++ b/data/www/js/slideshow/slides.js
@@ -15,7 +15,7 @@ jQuery(document).ready(function ($) {
 
     const prettyTimestamp = function(timestamp) {
         const d = new Date(timestamp);
-        return `${d.getFullYear()}-${String(d.getMonth()).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')} ${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}:${String(d.getSeconds()).padStart(2, '0')} `
+        return `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')} ${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}:${String(d.getSeconds()).padStart(2, '0')} `
     }
 
     const loadDateTimePicker = function($els) {