What version did Tong Sheng buy?

Tong sheng can use the one that comes with his mobile phone.

The Old Yellow Calendar is a kind of almanac that can display Gregorian calendar, lunar calendar, dry calendar and other calendars at the same time, and has a large number of rules and contents related to seeking good fortune and avoiding evil. It can be used to choose an auspicious day for getting married, breaking ground, traveling and opening business. This is a calendar based on the China lunar calendar, and there are many words indicating the good luck or bad luck of this day.

According to legend, it was created by Xuanyuan Huangdi, so it is called Huangli, and it is also commonly known as "Tongshu" among the people.

However, because the word "book" and "lose" in Tongshu are homophonic, it is also called "Tong Sheng" because of taboo. The main contents of the Gregorian calendar are the schedule of the twenty-four solar terms, the good and bad luck of each day, the luck of the zodiac and so on.