How did the Spring Festival travel rush timetable come about?

The schedule of spring break is calculated according to the regular pattern of the lunar calendar and accurate astronomical calculation. The beginning of the Spring Festival is the moment when the sun reaches 365,438+05 degrees.

1 and 24 solar terms refer to 24 specific seasons in the solar calendar, which are formulated according to the change of the earth's position on the ecliptic (that is, the earth's orbit around the sun), and each solar term corresponds to a certain position that the earth reaches every time it moves 15 on the ecliptic. Twenty-four solar terms are a knowledge system formed by observing the annual movement of the sun and understanding the changing laws of seasons, climate and phenology in a year. It divides the annual movement track of the sun into 24 equal parts, and each equal part is a solar term, starting from beginning of spring and ending with the great cold. ?

2. Twenty-four solar terms were formulated by the ancients according to the ecliptic plane, reflecting the influence of the sun on the earth and belonging to the solar calendar category. It is an important part of the long history and culture of the Chinese nation and embodies the historical and cultural essence of Chinese civilization. Twenty-four solar terms were established in ancient times, and were absorbed into taichu calendar law in Han Dynasty as a supplementary calendar to guide agriculture. Twenty-four solar terms are not only the time criterion promulgated by successive governments, but also the compass to guide agricultural production and to predict cold, warm, snow and rainy days in people's daily life.

Baidu encyclopedia-24 solar terms