diff --git a/main.js b/main.js
index 8a7b3de..11889a0 100644
--- a/main.js
+++ b/main.js
@@ -14760,8 +14760,8 @@
             month += 12;
             year--;
         }
-        const firstDay = new Date(year, month - 1, 20);
-        const lastDay = new Date(year, month, 19);
+        const firstDay = new Date(year, month - 1, 21);
+        const lastDay = new Date(year, month, 20);
         const formatLocal = (date) => {
             return date.toLocaleDateString('en-CA', { 
                 year: 'numeric',