Hi,
I'm sorry, I misunderstood "sleep in" (my native language in french), I see that it does exactly what I wanted! My weekend starts at Friday night and end Monday morning, the usual schedule, but I think that be able to change the schedule for people who work on Saturdays, but don't on Mondays, and other complex schedules would be nice, don't you think?

BTW, thank you for your support :)

@herf any news on this? I have this issue multiple times a week:

get up before my defined wake up time press "Disable until Sunrise" to make my screen normal forget to enable flux again at sunset

A simple "Disable until Wake up time" or "Disable until Sunset" feature would fix this.

@cleocaro what version of Mac OS do you have?