Clock 25 visualizes the dynamics of Clock 24 using a different technique, related to/loosely inspired by Henon maps. Once a second, particles gravitationally coupled to the hands of the clock are released from a stationary point. Eventually they collide with one of the hands. When that happens a mark is made on the image at a position determined by the time the particle was created in a color determined by the hand it collided with. Each hour the color code changes, to enable the viewer to compare the dynamics from hour to hour.