It is played in conjunction with a synchronized analog clock. There was also a new analog clock user interface. One of the customization options is to replace the picture with an analog clock. For this year, HID headlights were added and the analog clock returned. The rxvt distribution also includes an analog clock program called rclock. Between the two boards were an analog clock and a temperature display. A matching analog clock sites over the front entrance doors. However, a malfunctioning analog clock is a less serious event than a malfunctioning digital clock.