Night light should fall back to sane sunrise/sunset times in corner cases
Main corner case identified seems to be high altitudes where we might not even have a night.
Here are suggestions to solve this (feel free to edit this list):
- When the night/day is less than e.g. 6h fall back to a fixed time
- …
I am guess that most of these users may want to use night light more proactively anyway though (e.g. turning it on 2h before they go to bed). So in those cases, they will likely hardcode the time to something that works for them.