What does fortune-telling sky mean?

You can't tell fortune when you are young.

Time-sharing refers to the period farthest from the sun in a day, that is, 23: 00 ~ 0 1: 00, the prime time is 24: 00 at midnight and 12: 00 at noon. Twelve o'clock was originally created by the ancients according to the natural laws such as the appearance and appearance of the sun, the change of the sky and their daily production activities and living habits. Twelve o'clock is unique and has a long history. It is an outstanding contribution of the Chinese nation to the astronomical calendar of mankind and one of the splendid cultural treasures.