Varied, but also natural
People are constantly aware of the time in large part due to the position of the sun and how bright it is outside, which is like an innate ability. The Dusk clock changing color follows this same principle. As it grows darker outside, so does the clock face.
Find joy in natural variation
The clock face color is consistent with the changes in the sky, which makes the clock more interesting and natural. People can also feel the time via the “sky brightness” in the room, which is particularly useful in windowless rooms.
Beauty comes from harmony
Beauty is linked to harmony; this is the logic behind this design. By getting rid of any unimportant elements the clock is reduced to its basic form. And being consistent with the changes of the sky makes the variation more natural.