Confucius talks about watching the sunset.

On this day, the funeral procession suddenly encountered a solar eclipse. I immediately stopped the funeral procession, stood on the right and stopped crying until after the eclipse. Confucius, who led the coffin in front, didn't understand, but in the face of Laozi, who was proficient in etiquette, he could only do as he said. When he came back from the funeral, Confucius expressed his different views to Laozi. Confucius thought it was impolite to stop the coffin halfway, and he didn't know how long the eclipse would last. If we wait too long, the dead will feel uneasy and should move on. Laozi said to Confucius, "When the vassal states see the emperor, they all go on the road at sunrise and rest at sunset, and worship the ancestral tablets in the car. When doctors go abroad for home visits, they also do it at sunrise and rest at sunset. The funeral is the same, not before sunrise. Only criminals and people who go home to attend their parents' funerals are on the road when they see the stars coming out at night. During the eclipse, the sky is dark, just like at night. For a gentleman who knows manners, he should not put his recently deceased relatives in such an unfortunate situation of running away on a starry night. So, if there is a solar eclipse during the funeral, you should stop and wait until after the eclipse. "