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 calendar that can simultaneously display various calendars, such as solar calendar, lunar calendar and dry calendar, and has a large number of rules and contents related to seeking good fortune and avoiding evil. It can be used to choose auspicious days for marriage, ground breaking, travel and business opening. This is a calendar based on the China lunar calendar, and there are many words indicating good or bad luck on 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" in Tongshu is homophonic with the word "lose", it is also called "Tong Sheng" because it is taboo. The main contents of the Gregorian calendar are the date table of the 24 solar terms, the good and bad luck of each day, the fortune of the zodiac and so on.