diff --git a/functions/datetime.xml b/functions/datetime.xml
index a907def3d5..036112e9da 100644
--- a/functions/datetime.xml
+++ b/functions/datetime.xml
@@ -752,6 +752,34 @@ print (strftime ("%A.\n"));
    </refsect1>
   </refentry>
 
+  <refentry id="function.strtotime">
+   <refnamediv>
+    <refname>strtotime</refname>
+    <refpurpose>
+     Parse about any english textual datetime description into a UNIX timestamp
+    </refpurpose>
+   </refnamediv>
+   <refsect1>
+    <title>Description</title>
+    <funcsynopsis>
+     <funcdef>int <function>strtotime</function></funcdef>
+     <paramdef>string <parameter>time</parameter></paramdef>
+     <paramdef>int <parameter><optional>now</optional></parameter></paramdef>
+    </funcsynopsis>
+    <para>
+     The function exspects to be given a string containing an
+     english date format and will try to parse that format into
+     a UNIX timestamp.
+     <example>
+      <title><function>strtotime</function> example</title>
+      <programlisting role="php">
+echo strtotime("10 march 2000")."\n";
+      </programlisting>
+     </example>
+    </para>
+   </refsect1>
+  </refentry>
+
  </reference>
 
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