diff --git a/akka-actor/src/main/resources/reference.conf b/akka-actor/src/main/resources/reference.conf
index 6e747f8121..3f38cfeca0 100644
--- a/akka-actor/src/main/resources/reference.conf
+++ b/akka-actor/src/main/resources/reference.conf
@@ -295,7 +295,7 @@ akka {
 
   # Used to set the behavior of the scheduler.
   # Changing the default values may change the system behavior drastically so make sure
-  # you know what you're doing!
+  # you know what you're doing! See the Scheduler section of the Akka documentation for more details.
   scheduler {
     # The HashedWheelTimer (HWT) implementation from Netty is used as the default scheduler
     # in the system.
diff --git a/akka-docs/java/scheduler.rst b/akka-docs/java/scheduler.rst
index 3dde1345a6..faff8d9fe0 100644
--- a/akka-docs/java/scheduler.rst
+++ b/akka-docs/java/scheduler.rst
@@ -15,6 +15,13 @@ You can schedule sending of messages to actors and execution of tasks (functions
 You will get a ``Cancellable`` back that you can call :meth:`cancel` on to cancel the execution of the
 scheduled operation.
 
+.. warning::
+
+    The default implementation of ``Scheduler`` used by Akka is based on the Netty ``HashedWheelTimer``.
+    It does not execute tasks at the exact time, but on every tick, it will run everything that is overdue.
+    The accuracy of the default Scheduler can be modified by the "ticks-per-wheel" and "tick-duration" configuration
+    properties. For more information, see: `HashedWheelTimers <http://www.cse.wustl.edu/~cdgill/courses/cs6874/TimingWheels.ppt>`_.
+
 Some examples
 -------------
 
diff --git a/akka-docs/scala/scheduler.rst b/akka-docs/scala/scheduler.rst
index 6089630625..a98f0f563c 100644
--- a/akka-docs/scala/scheduler.rst
+++ b/akka-docs/scala/scheduler.rst
@@ -15,6 +15,13 @@ You can schedule sending of messages to actors and execution of tasks (functions
 You will get a ``Cancellable`` back that you can call :meth:`cancel` on to cancel the execution of the
 scheduled operation.
 
+.. warning::
+
+    The default implementation of ``Scheduler`` used by Akka is based on the Netty ``HashedWheelTimer``.
+    It does not execute tasks at the exact time, but on every tick, it will run everything that is overdue.
+    The accuracy of the default Scheduler can be modified by the "ticks-per-wheel" and "tick-duration" configuration
+    properties. For more information, see: `HashedWheelTimers <http://www.cse.wustl.edu/~cdgill/courses/cs6874/TimingWheels.ppt>`_.
+
 Some examples
 -------------