202 1 February in the lunar calendar is: 202 1 March 13 ~202 1 April1.

202 1 Lunar February solar terms are as follows: vernal equinox, Qingming.

202 1 spring equinox solar term time:

Saturday, March 20th, 20021year (the eighth day of February in the Year of the Ox)

Tomb-Sweeping Day gas time 202 1:

Sunday, April 4th, 20021year (February 23rd, Year of the Ox)

Introduction of vernal equinox solar terms

The vernal equinox, one of the 24 solar terms, is the fourth solar term in spring. Finger shackles, the sun's yellow meridian reaches 0? March 19~22 in Gregorian calendar every year. The vernal equinox is of great significance in astronomy, and the northern and southern hemispheres are equally divided day and night. After that, the direct position of the sun continued to move from the equator to the northern hemisphere, and the days in the northern hemisphere began to be longer than the nights. The vernal equinox also has obvious characteristics in climate. It's warm, rainy and sunny at this time.

The vernal equinox solar term means that the sun is at 0? And 15? Between locations, that is, between the vernal equinox and Qingming, the Gregorian calendar is between March 20 and April 5. In ancient times, the vernal equinox was also called the Japanese-Chinese equinox, the day-night equinox, the vernal equinox, the rising equinox and so on. The significance of the vernal equinox, first, refers to the equal division of day and night, each of which is 12 hours; Second, the vernal equinox is in the middle of spring (from beginning of spring to Changchun), and the spring is equally divided.

Brief introduction of Tomb-Sweeping Day gas

Tomb-Sweeping Day is the end and the beginning. The official calendar (taken at the age of) calculates the monthly order according to the operation of the Big Dipper, and the date referred to by bucket handle is called sword fighting (the date referred to by bucket handle of the ancient Big Dipper is called sword fighting). For example, the astronomical training of Huai Nan Zi includes: Emperor Zhang Siwei was transported to war, moved to his place one day in a month, and returned to his place. The first month refers to yin, December refers to ugliness, and at the age of one, he turns around again. The bucket here refers to the bucket handle of the Big Dipper. The barrel handle rotates circularly, rotating clockwise once, indicating one year old (Figure). Twenty-four solar terms and December construction are the basic contents of the dry calendar. The architecture in December is a solar month based on 24 solar terms, and the architecture in December is divided based on festivals, namely beginning of spring, Jingzhe, Qingming, Changxia, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, Daxue and Xiaohan. The official calendar takes Yin Hui with barrel handle as spring (the first month). In the first month, that is, the month of establishment, Yin Hui, bucket handle is Zheng Chun, and the month where Zheng Chun is located is the first month; Jian Zheng (the first month) is the concept of December architecture, which was introduced in the first year of the lunar calendar and later evolved into the first month of other calendars. December is the first month, February is the first month, Uzuki is the second month and March is the third month. Qingming is the beginning of the calendar month (March). When the weather is clear, it marks the end of spring. At this time, the solar terms are clear, everything is obvious, and nature presents a vibrant scene.