On June 2, 20 16, the solar calendar is the summer solstice, but the number of volts does not start on the summer solstice, but starts on July 20 16 17, and the date of three volts is from the summer solstice to the third Geng day, which is the first, and the fourth Geng day to the fifth Geng day is the middle. Every Geng day is 10 days apart, and the number of midsummer days is not fixed. There are four Geng days between the summer solstice and beginning of autumn, the midsummer days are 10 days, and there are five Geng days, and the midsummer days are 20 days.

List of 20 16 entry time. The specific time is:

Initial lodging: 7.17-7.26, 10 days;

Midrange: 7.27-8.15, 20 days;

Terminal voltage: 8.16-8.25, 10 days.