DIY circadian rhythm based lighting

[Jamie]

Does this help with your idea?

Natural sunlight color temperature

Hi, I would like to set the color temperature of my bulbs to the natural sunlight color. Is there an app for that? Or some well known algorithm, which would calculate the temperature for specific time and specific geolocation? Or some sensor which could detect current light color temperature? Here’s some example chart: https://www.thelightingpractice.com/what-is-circadian-lighting