diff --git a/doc/src/module.rst b/doc/src/module.rst
index 70a68658..52061bff 100644
--- a/doc/src/module.rst
+++ b/doc/src/module.rst
@@ -201,6 +201,12 @@ Module Interface
 
     Construct an object holding a time value.
 
+    .. note::
+
+        The time only data type is not supported by Oracle. Calling this
+        function will raise a NotSupportedError exception.
+
+
 
 .. function:: TimeFromTicks(ticks)
 
@@ -208,6 +214,11 @@ Module Interface
     of seconds since the epoch; see the documentation of the standard Python
     time module for details).
 
+    .. note::
+
+        The time only data type is not supported by Oracle. Calling this
+        function will raise a NotSupportedError exception.
+
 
 .. function:: Timestamp(year, month, day, hour, minute, second)