I read the other day a bullshity response in their forums like that their objective was to understand human behaviour not just set timers or something like that.

Edit:

- "Our goal is to further the understanding of human biology, not just turn things orange on a timer. It's a longer term undertaking and a much more difficult one."

https://forum.justgetflux.com/topic/237/custom-sunset-sunrus...

Lol. That's indescribably smug.

I always set my location some way to the south west to make f.lux dim later. Sweden in winter may get dark at 3 pm, but that doesn't mean I am going to bed.