How to calculate the ambush?

It is the hottest time of the year from summer to the third Geng day in the future, with 10 days before, 10 ~ 20 days in the middle and the first Geng day after the last beginning of autumn. Entering a crouching state means entering the dog days. Three volts refers to the first, middle and last three volts, probably from mid-July to mid-August. The 1 Geng Day after beginning of autumn is the last day. There are four Geng days between the Summer Solstice and beginning of autumn, which are divided into 10 days, and when there are five Geng days, it is 20 days. It seems that the emergence of Gengri will affect the length of the squat.

Counting formulas, formulas, formulas, jingle.

The date of stay can be obtained according to the experience handed down from ancient times. The length of accommodation is not fixed every year, and the length of accommodation is also different. It needs to be calculated by looking up the almanac. Simply put, the lodging date can be expressed by the four-character formula from summer to day, that is, from the third Geng day after summer, the initial lodging is 10 day, the intermediate lodging is 10 day or 20 days, and the final lodging is 650 days. In ancient China, the trunk and branch calendars were popular, and 60 groups of different names were used to record dates with 10 heavenly stems and 12 earthly branches, which were recycled. The day with the word "Geng" is called "Geng Day".

Summer solstice is a jingle.

In ancient times, the summer solstice was called the summer season and the summer solstice festival, and people often sacrificed to the gods on this day to pray for a good year. In the Zhou Dynasty, sacrifices were made to God from the summer solstice to eliminate epidemics and famines. The north is very dry. On this day, people generally pray for good weather and good crops, and some folk arts, such as paper-cutting, are also reflected. After several generations, most folk activities from the summer solstice are to prepare for the bumper harvest of that year.

On the solstice of summer, there are many popular jingles, such as the song "Summer 99": from September 19 to September 29, fans never leave; 3927, ice water is as sweet as honey; Four, nine, thirty-six, sweaty clothes; In 5945, trees danced in the breeze; 6954, too late to enjoy the cool; 7963, pay the bill at night; 872, be careful not to catch cold; 998 1, everyone is looking for cotton-padded clothes. Through folk proverbs, the weather change characteristics from summer to 998 1 day in the future are displayed.