Which solar term does lodging start from, and which solar term does lodging start from every year?

1. The crouching time in the dog days begins with the solar terms from summer to Sunday. The traditional almanac stipulates that "the summer solstice is counted as the third Geng day", which means that it will crouch from the summer solstice to the third Geng day. Geng day refers to the day prefixed with "Geng" in the "Ganzhi Jiri Law".

2. In addition, one year's stay is not fixed, depending on the length of stay. If the accommodation is 10 days, it is 30 days in dog days. If the time of middling is 20 days, the time of three volts is 40 days.