diff --git a/handbook/callout.html b/handbook/callout.html
index 9d541be8d..3007b71a4 100644
--- a/handbook/callout.html
+++ b/handbook/callout.html
@@ -8,7 +8,7 @@
 <body>
 <h2 id="tophead">CUCC Expedition Handbook</h2>
 <h1>Callouts</h1>
-<p>No Callout between 00:00 and 08:00  (For minor camps, no callouts between 20:00 and 08:00)</p>
+<p>No Callout between 23:00 and 08:00  (For minor camps, no callouts between 20:00 and 08:00)</p>
 <p>There is no need to have a callout with another camp/basecamp if you have people on the surface:</p>
 <ul>
 <li>
