Select the element of "sundial" in the Palace Museum to design this "sundial" umbrella. The text and patterns on the surface of the sundial and the auspicious element of "auspicious clouds" are abstractly extracted and printed on the umbrella surface of the sundial. Under the sun, the shadow of the tip of the umbrella is projected on the umbrella surface printed with twelve hours, like a sundial at work. Adjust the angle and even use it as a real sundial to read the time. The sundial works in the sun, and the umbrella is used in the sun to echo each other. Through abstract means, the sundial, a historical relic in the Forbidden City, is integrated into daily life to promote the spread and inheritance of culture.