The "nine nine sunny days" and "nine nine heavy sun" are not the same thing.
1, "nine nine sunny days" represents the time before and after the "hibernation", it is the sunshine, snow, ice, spring flowers.
The "nine nine" here, refers to the "winter nine nine" in the "count nine" counted to the ninth nine, from the "winter solstice" after the 73rd day of the beginning of the day. "After the 73rd day of the beginning. Our country in ancient times will be counted from the winter solstice eighty-one days divided into nine segments, each for nine days, known as the winter nine nine (referred to as the nine nine or counting nine weather), and in order to name a nine, two nine, three nine,? Nine nine.
Because the winter solstice is basically fixed in the current calendar, so is the start date of the one-nine to eight-nine. However, the start date of the last nine days of a leap year (i.e., 9-9-9) is one day earlier.
2, "nine nine" in the "nine nine" is the ninth day of the ninth month of the lunar calendar, which is the Chongyang Festival.
The Chongyang Festival generally falls between the "cold dew" and the "frost". "Cold dew is not cold, but the frost has changed the sky." Autumn is high and clear, but it is the time when chrysanthemums are in full bloom. That's why Mao Zedong would sing out in "Cai Sang Zi - Chongyang": "Life is easy, but it's hard to grow old, and the sun reappears every year. The yellow flowers on the battlefield are especially fragrant. Once a year the autumn wind is strong, not like the spring light. It is more like the spring light, with ten thousand miles of frost on the lonesome river and sky."
The ancients divided the natural numbers into yin and yang as well. One, three, five, seven and nine are yang numbers, and two, four, six and eight are yin numbers. On September 9, the month and the day are both yang, and it is the largest yang number, so it is called the Chongyang Festival and is treated as the Festival of the Elderly. On this day, the ancients would climb up high and meet friends. That's why Wang Wei, a Tang Dynasty poet, left the ancient poem "Remembering Shandong Brothers on September 9", which says "I miss my relatives twice as much as I miss them during the festivals".
Expanded Information:
Different regions have different Winter JiuJiu Songs due to their different climatic characteristics.
1, such as the middle and lower reaches of the Yellow River, "Winter Jiu Jiu Song" is:
1929 not out of the way, 3929 4929 river walk, 5929 6929 along the river looking at the willows, 7929 open the river 8929 geese, 9929 and 9929, the plow oxen all over the place.
2, Changzhou, Jiangsu Province, "winter nine nine song" is:
The first nine nine two nine, meet not out; three nine forty-nine, freezing sozo shivering; five nine forty-five, the poor man dancing in the street; six nine fifty-four, mosquitoes and flies called squeak; seven nine sixty-three, pedestrians with a single coat; eight nine seventy-two, barefoot on the mud; nine eighty-one, flowers and leaves.
3, Hunan region of the "winter song" is:
Winter solstice is the first nine hands hide cuffs, two nineteen eighteen mouth like eating spicy, three nineteen twenty-seven to see the fire as honey,
four ninety-three thirty-six closed the stove guard, five ninety-four forty-five open the door to find a warm place, six ninety-five forty-four willows green;
seven ninety-three sixty-three pedestrians take off their clothes, eight ninety-seven seventy-two willows fluttering all over the ground.
Baidu Encyclopedia - Winter Jiu Jiu
Baidu Encyclopedia - Jiu Jiu Chong Yang