Dynaper

Dynaper lets you create your own dynamic desktop wallpaper. This application makes it easy to create a native time/solar-shifting/light&dark HEIC wallpaper that changes throughout the day.

You simply drag and drop your images and change the display time for each image. Dynaper will change time automatically if the image contains EXIF metadata or a time suffix in the filename. Dragging an image out of Dynaper will create a time-shifting text that contains normalized time and parameters that you can use for manual HEIC creation.