Clock idea

This would be for a mission non-critical clock. I’m not the best about going to bed on time, so it’d be good to have a visual system to know oops.
Have an arbitrary midpoint, in my case midnight, based on my sleep patterns. Have a voltage slowly ramp up over the course of the day… hmmm, I have a different idea now. I wonder if I could do this entirely discrete components. Right.
I don’t know…