diff --git a/src/motion/Actuate.hx b/src/motion/Actuate.hx
index 79c7587..a1ce572 100644
--- a/src/motion/Actuate.hx
+++ b/src/motion/Actuate.hx
@@ -20,7 +20,10 @@ import flash.display.DisplayObject;
 
 class Actuate {
 	
-	
+	/**
+	 * global speed control (for bullet time effect, fast forward effect)
+	 */
+	public static var speedGlobal:Float = 1;
 	public static var defaultActuator:Class<IGenericActuator> = SimpleActuator;
 	public static var defaultEase:IEasing = Expo.easeOut;
 	private static var targetLibraries = new ObjectMap<Dynamic, Array<IGenericActuator>> ();
diff --git a/src/motion/actuators/GenericActuator.hx b/src/motion/actuators/GenericActuator.hx
index 1ca928e..7a81d62 100644
--- a/src/motion/actuators/GenericActuator.hx
+++ b/src/motion/actuators/GenericActuator.hx
@@ -9,8 +9,9 @@ import motion.Actuate;
 
 class GenericActuator<T> implements IGenericActuator {
 	
-	
-	private var duration:Float;
+	public var duration(get, set):Float;
+
+	private var _duration:Float;
 	private var id:String;
 	private var properties:Dynamic;
 	private var target:T;
@@ -453,5 +454,11 @@ class GenericActuator<T> implements IGenericActuator {
 		
 	}
 	
-	
+	public inline function get_duration ():Float {
+		return _duration / Actuate.speedGlobal;
+	}
+
+	public inline function set_duration (value:Float):Float {
+		return _duration = value;
+	}
 }
\ No newline at end of file