Finding out whether it's day or night using SkyAtmosphereLightDirection

Hey guys,

So in the sky & atmosphere videos that Sjoerd did, he mentions we can use the SkyAtmosphereLightDirection property to determine what time of day it is.

This was done as seen here: Exploring the depths of the new Sky & Atmosphere system | Unreal Engine - YouTube. I’m guessing we get a value between 0 and 1 but I’m not sure what value would be considered night or day time. It will be nice if we are able to see the value of SkyAtmosphereLightDirection as we move the sun with ctrl + L, as to know what value it is when it gets dark/bright. Does anyone know how to do this?