What's the difference between the long summer and the summer solstice? Which solar term represents summer?

The difference between long summer and summer solstice.

Which solar term, long summer or summer solstice, represents summer?

Long summer stands for summer, and the solstice in midsummer stands for the meaning that the hot summer in midsummer has begun.

Long summer said:

Every year around the first day of April (between May 5 and 6 of Gregorian calendar), when the sun reaches 45 degrees of the Yellow Meridian, it is the long summer solar term of the lunar calendar, which refers to the dimension of southeast and long summer. Everything is born here, hence the name "Long Summer". At this time, the longitude of the sun is 45 degrees. Astronomically, Chang Xia said that bidding farewell to spring is the beginning of summer days.

Summer solstice introduction:

The summer solstice falls on June 2 1 or 22 every year. Although the summer solstice has the longest day and the highest sun angle, it is not the hottest time of the year. Because, close to the surface of the heat, at this time still continue to save, did not reach the maximum time. As the saying goes, hot days are in dog days, and the real hot days are calculated according to the summer solstice and beginning of autumn. From mid-July to mid-August, the temperature is the highest in all parts of the country, and the highest temperature in some areas can reach about 40℃.