README.md

Alarm Clock

I built a little bedside clock that displays:

The date and time
The number of hours I've slept (really, the number of hours that have passed since I last turned off my bedside lamps)
My sleep "progress" -- when full, I've slept for >=8h.

The important variables to keep updated are:

lights-out-time - timestamp lights were turned out at.
lights-out-time-relative - number of hours/m that have passed since lights-out-time.
sleep-time-percent - % of 8h lights-out-time-relative is

I keep these updated using a Node-RED flow.