Lock screen wallpaper does not change with the holidays, but automatically changes on the day of winter solstice, not on Christmas Eve?

The lock screen wallpaper you mentioned will not change with the holidays. On the day of winter solstice, it will change automatically. This is because the winter solstice is a festival and solar term in China. You must change the wallpaper at this time. As for Christmas Eve, Christmas and so on. This is a festival for westerners. It has nothing to do with us in China.