Why do some mobile phone wallpaper themes show the time of the first month? What is this first month? Please explain, thank you.

This is not surprising. Generally, mobile phones only display the Gregorian calendar and the day of the week, but this mobile phone displays the lunar calendar. It just has one more function than other mobile phones, indicating that its functions are more complete. The first month of the month means January! The name of the lunar date. The first month of each year based on the lunar calendar is the first month, and the last month is the twelfth month, which is December. The first month heralds a new beginning of a year. Because there are 24 solar terms in the lunar calendar, they all have special names