How do i make darker nights and brighter days?

I am trying to make darker nights and brighter days. I'm pretty new to scripting. Anyways i hope you can help me.

while true do
if game.Lighting.ClockTime.Value >= 21 then
	game.Lighting.FogColor.Value = 0, 0, 0
	
elseif game.Lighting.ClockTime.Value <= 06 then
	game.Lighting.FogColor.Value = 192, 192, 192
end
end

Instead of changing the FogColor, just change the ClockTime, so you can have brighter days or darker nights. There are also objects that you can add to lighting like BloomEffects, BlurEffects, SunRays, Color Corrections...