"Preface to Historical Records Taishi Gong": "The husband is born in spring and grows in summer, and the autumn harvest lasts in winter. This is also the Great Classic of Heaven. "

"Preface to Historical Records Taishi Gong": "The husband is born in spring and grows in summer, and the autumn harvest lasts in winter. This is also the Great Classic of Heaven. "

Spring grows in summer and autumn harvests in winter.

Twenty-four solar terms, seventy-two periods.

Taking the lunar calendar as the main design line, the six calendars are integrated into one.

From 0 1 day of the first lunar month (beginning of spring) of that year to the day before 0 1 day of the first lunar month (beginning of spring) of the following year.

24 solar terms and 72 phenological changes are vividly displayed, which can be completely collected after one year.

What is "phenology"?

Simply put, "phenology" is the story of solar terms, flowers, birds, insects and fish.

2022 72 Waiting Calendar, an ancient timing calendar, made me turn my life into a poem ~

In ancient times, people used the lunar calendar to measure time, and "Hou" was the smallest unit of time.

On average, every five days is a period, three periods are a solar term, six solar terms are a season, and four seasons are a year, so there is a saying of "year (year) (four seasons) (twenty-four solar terms) (seventy-two phenology)".

Judging the seasonal changes according to the changes of animals and plants is beneficial to farming and life.

Now most people only know 24 solar terms, but they don't know 72 phenology.

Seventy-two phenology, seventy-two emotions.