What season does "99" mean on a sunny day in 1999?

Summer refers to the eighth1day from summer to the future.

Jiujiu is a general term used by ancient people in China to represent the eighty-one days of winter solstice or summer solstice. The solstice after 8 1 day in winter is called "Winter 99", and the solstice after 8 1 day in summer is called "Summer 99". This word is still very popular today.

"Summer 99" starts from the summer solstice, every nine days is a nine, and there are eighty-one days in a year. Similarly, March 9 and April 9 are the hottest seasons of the year. In stark contrast to the ninth day of September in winter. Unfortunately, it has not been widely spread. In fact, Summer 99 does vividly reflect the relationship between date and phenology.

Extended data:

According to textual research, there was a record of "Nine Songs in Summer" in the Tang and Song Dynasties. In the Southern Song Dynasty, Lu Yong recorded Ninety-nine Xia Poems in Wu Jiazhi. It was found that this ballad was written in Song Yanmo, on the elm beam of a Wang Yu temple hall in laohekou city, Hubei Province, and the ink was not dry.

The ballad goes: "The summer solstice is on the ninth day, and the feather fan is in hand;" In 29 18, I took off my crown and put on a scarf; On March 27, I went out to sweat; Four, nine, thirty-six, open-air rolling seats; In 5945, autumn was like a tiger; 6954, enter the temple to enjoy the cool; 7963, touching the sheets at the bedside; 8972, looking for a quilt in the middle of the night; 998 1, open the cupboard to get cotton-padded clothes. "

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