diff --git a/war/resources/help/project-config/timer-format.html b/war/resources/help/project-config/timer-format.html
index 50abeb93aa7dd01cae6065c5f15c8674a6c3dbd2..e44fe1897349eec1972ee50a96b16bcf18e49bbe 100644
--- a/war/resources/help/project-config/timer-format.html
+++ b/war/resources/help/project-config/timer-format.html
@@ -37,6 +37,9 @@
   </ul>
   <p>
     Empty lines and lines that start with '#' will be ignored as comments.
+  </p><p>
+    In addition, '@yearly', '@annually', '@monthly', '@weekly', '@daily', '@midnight',
+    and '@hourly' are supported.
   </p>
   <table>
     <tr>