The anniversary of Yang Gong's death is another auspicious day.

This ancient custom began on this day of the lunar calendar, and then it is Pepsi Taboo Day two days in advance every month, which is called "Yang Gong Taboo Day" and also called Thirteen Taboos in Yang Gong. Biographer is Song Yang, a geomantic master in Tang Dynasty.

These thirteen "taboo days" are the 13th of the first month, 11th of February, 9th of March, 7th of April, 5th of May, 3rd of June, 1st of July, 29th of July, 27th of August, 25th of September, 23rd of October, 21st of November and 19th of December.

These thirteen days must not be chosen for opening, construction, getting married, signing contracts and so on.

Although one day may be an auspicious day in the Gregorian calendar, it is suggested to avoid this day because it conflicts with the anniversary of Yang Gong's death. If you don't choose the anniversary of Yang Gong's death, you can find a way to solve it.