This clock times the twin hours of Matutine and Vespertine, i.e. the early morning hours at dawn’s first light and the evening twilight hours before complete darkness falls. These are the hours when crepuscular plants and animals are active. Both predator and prey can be found at these times when camouflage is at its most effective, when neither the day’s heat nor the night’s blindness has arrived, and when competition for resources ebbs. The red-tipped hand denotes the arrival of crepuscular hours on the copper dial, when creatures such as rabbits, dogs, foxes, cats, deer, skunks, and fireflies can be observed.