HoloLens provides a timestamp with every frame from each sensor, which can be used for sensor fusion outside of the system usage. Windows.Perception.PerceptionTimestamp can be used for either recorded data (e.g. camera) or for future predictions (e.g. predicted device position). The predicted latency is also used to adjust the render to ensure the viewer's perspective is correct even though the draw calls may be lagging slightly behind the viewer's position.
