diff --git a/src/Time/TimeManager.cxx b/src/Time/TimeManager.cxx
index 9fdca4c99..36312b532 100644
--- a/src/Time/TimeManager.cxx
+++ b/src/Time/TimeManager.cxx
@@ -108,6 +108,20 @@ void TimeManager::init()
   _frameCount = 0;
 }
 
+void TimeManager::unbind()
+{
+    _maxDtPerFrame.clear();
+    _clockFreeze.clear();
+    _timeOverride.clear();
+    _warp.clear();
+    _warpDelta.clear();
+    _frameRate.clear();
+    _frameLatency.clear();
+    _frameRateWorst.clear();
+    
+    // and the property objects too
+}
+
 void TimeManager::postinit()
 {
   initTimeOffset();
diff --git a/src/Time/TimeManager.hxx b/src/Time/TimeManager.hxx
index 9eb40980b..46d3f9ed6 100644
--- a/src/Time/TimeManager.hxx
+++ b/src/Time/TimeManager.hxx
@@ -40,6 +40,8 @@ public:
   virtual void postinit();
   virtual void shutdown();
   
+  virtual void unbind();
+    
   void update(double dt);
   
 // SGPropertyChangeListener overrides