Not added to the desktop. Applewatch needs to manually add widgets to display the reversed days. The following steps have been added:
1. Open the home screen, press the screen hard, press the screen with two fingers, and slide in different directions to open the desktop control interface.
2. In the desktop control interface, find the desktop plug-in button below and click to enter the desktop plug-in interface.
3. In the desktop plug-in interface, find the reverse date option and click this button to add it to the desktop.
4. Click Back, which has been displayed on the desktop for several days.
If the above steps can't solve the problem, it is recommended to consult Apple's official customer service to find a more accurate solution.