Check the summer heat in the old calendar, the first day of the third day.

Dog days, one volt is ten days, counted by days. Therefore, the dog days are divided into three days, that is to say, after the third day of Gengtian, the summer solstice is the first day, the first volt.

20 19 summer solstice time: 20 19 June 2 1.

20 19 Summer to the first Geng Day in the future: 20 19 June 22nd (Geng Yin Day).

Summer of 20 19 to the second boxer day in the future: July 2, 20 19 (boxer day)

The 20th of the third Geng Day after long summer/July of KLOC-0/9 12 (Geng Xuri).

Therefore, the first day of this year is July 19 (Geng Xuri). Because the initial stay is 10 days, the initial stay this year is from July 12 to July 2 1.