"Counting nine" starts from the winter solstice, and every "nine days" is a nine, so the time in 4959 is counted from three nine days after the winter solstice.

So April 9, 2020 is from 202117 (the fifth day of the twelfth lunar month) to 202 1 1 25 (the thirteenth of the twelfth lunar month); May 9th is 202 1 65438+1October 26th (the 14th of the twelfth lunar month) to 2021day (the 22nd of the twelfth lunar month).

How to maintain health in cold weather?

1, "Get up early and go to bed late, and wait for the sun." We must decide our daily life according to the law of solar activity. It is best to rest before ten o'clock in the evening and get up after the sun rises. Through sleep conditioning, the purpose of going to bed early to nourish the yang and getting cloudy at night is achieved.

2, because the human body will release a lot of energy to keep warm in winter, so if you don't cover the skin, a lot of yang will escape from the pores, and cold will definitely penetrate from the skin. Once a cold invades the human body, the consequences will be unimaginable. Therefore, special attention should be paid to keeping warm when bathing and dressing in winter.

3, eat more black rice, black beans, black sesame seeds, walnuts, leeks to nourish the kidneys, and drink water regularly to ensure sleep, and maintain the kidneys through various methods.