There is a world where the sun does not move. Where you are geographically from East to West dictates whether it is night, day, dusk, dawn, and so on.
At the same time, where you are from North to South dictates whether it is spring, summer, autumn or winter. Imagine it as a kind of graph, with a few illustrative examples of lands within it.
Island 1: Always night. A barren and frigid place where nothing grows. In the South it is slightly warmer than the North.
Island 2: Always noon and always in the middle of summer. An extremely verdant and fertile place (depending on levels of rainfall - could be a blasted desert).
Island 3: Always autumn and split between dusk and night. In the West there is some growth and life; in the East there is night.
Island 4: Always night and always winter - basically the Arctic in midwinter.