On February 4th, Beijing time 1 1 hour 14, beginning of spring was ushered in. At this time, although the chill is still there, the "grass shoots back" is unstoppable. After beginning of spring, people will obviously feel that the days are getting longer, the sun is much warmer, and the temperature, sunshine and precipitation tend to rise or increase. There are folk sayings such as "One day in beginning of spring, a hundred herbs sprout", "One day in spring, three points in water heating" and "One day after eating a meal, it is warmer".

The wind is warm and the mountains and rivers wake up, and spring comes to the world. Shi Zhicheng, director of Tianjin Astronomical Society, said that the annual Gregorian calendar falls on February 4th, when the sun reaches 3 15 degrees. According to the order of the 24 solar terms, beginning of spring is the first solar term, also known as "playing spring", which is the sixth "ninth" after the winter solstice, so it is said that "spring hits six or nine heads". "Look at the willows across the river in May and June". At this time, the festival will see a slight green light on the sunny side of the ground.