How does Lenovo phablet 2207 set the calendar with lunar calendar?

Open the calendar that comes with Android, and you can see the lunar date of the day at the top of the screen.

But there is no old calendar in the system calendar, that is, the content should be avoided ~ and the lunar calendar can't be displayed on the desktop ~

If you want to see the Lunar New Year on your desktop, you can download an Android application with a desktop plug-in.