There was a radio controlled clock in the Computer Lab at Cambridge, but it seems the actual clock mechanism ran fast (gain a couple of minutes over the course

There was a radio controlled clock in the Computer Lab at Cambridge, but it seems the actual clock mechanism ran fast (gain a couple of minutes over the course of a day). More often than not, if I happened to be walking past at around 1600, the clock would be mid-way through a fast twelve-hour cycle to get back to the right time.