Foreign netizens listen to solar terms

Twenty-four solar terms are unique to China calendar. There is no such thing abroad, and some countries may have similar festivals. The vernal equinox, summer solstice, autumn equinox and winter solstice are determined according to the direct position of the sun. As long as it is in the northern hemisphere, it is the same day.

The vernal equinox is the midpoint of 90 days in spring. One of the 24 solar terms, around March 20 of the Gregorian calendar every year, when the sun is located at 0 (vernal equinox) of the yellow meridian. On the vernal equinox, the sun shines directly at the equator of the earth, and the seasons in the northern and southern hemispheres are opposite. The northern hemisphere is the vernal equinox and the southern hemisphere is the autumnal equinox. The vernal equinox is a new year in Iran, Turkey, Afghanistan, Uzbekistan and other countries, with a history of 3,000 years.

Summer solstice is one of the 24 solar terms, which occurs on June 20th, or 2 1, or 22nd of the Gregorian calendar every year. On the day of summer solstice, the sun moves to 90 degrees of the yellow meridian (summer solstice, currently in Gemini), and the position where the sun directly hits the ground reaches the northernmost point of the year, almost directly to the Tropic of Cancer. At this time, the daylight hours in all parts of the northern hemisphere reach the longest in the whole year. For the Tropic of Cancer and its northern area, the summer solstice is also the highest day of the year at noon. On this day, the northern hemisphere received the most solar radiation, almost twice as much as the southern hemisphere.

The autumnal equinox is the sixteenth solar term in the twenty-four solar terms of the lunar calendar, usually on September 22-24 of the Gregorian calendar every year. The climate in the south began to decline from this solar term. First, the sun arrived at 180 (autumnal equinox) on this day, and the sun almost directly hit the equator of the earth, and the length of day and night is equal all over the world (regardless of the refraction of sunlight by the atmosphere and the shadow in the morning). After the autumnal equinox, the direct point of the sun continued to move from the equator to the southern hemisphere, and the days in the northern hemisphere began to shorten and the nights became longer, that is, the days in a day began to be shorter than the nights; The southern hemisphere is the opposite. Therefore, the autumnal equinox is also called the landing point.

Winter solstice, commonly known as "Winter Festival", "Dragon solstice Festival" or "Children's Day". The solstice in winter has both natural and humanistic connotations. It is not only an important solar term among the 24 solar terms, but also a traditional festival of the Chinese nation. The solstice in winter is considered as a big holiday in winter. In ancient times, there was a saying that the winter solstice was as big as a year. In ancient times, people wandering in other places had to go home for the winter festival at this time, which was called "having a home at the end of the year". In many areas, there are customs such as ancestor worship in winter solstice, and some places celebrate this festival in winter solstice.