Am I properly trying to make parts read game.Lighting.TimeofDay?

As most of you may know, the roblox wiki takes you through a Day/Night cycle tutorial along with a script to turn a light on and off, which works for one part.

I attempted to split both of the parts apart so that the ServerScriptStorage handles the passage of time, while each individual part handles turning itself on and off, except that the lights no longer wish to function.

Simple Day/Night code

minutesAfterMidnight = 0
while true do
    minutesAfterMidnight = minutesAfterMidnight + 10 --value is big for the sake of debugging
    game.Lighting:SetMinutesAfterMidnight(minutesAfterMidnight)
    wait(.1)
end

code within each of the Light Emitting Parts

lightPart = script.Parent
if game.Lighting.TimeOfDay == "06:00:00" then
        lightPart.Material = Enum.Material.Plastic
        lightPart.PointLight.Enabled = false
    end
    if game.Lighting.TimeOfDay == "18:00:00" then
        lightPart.Material = Enum.Material.Neon
        lightPart.PointLight.Enabled = true
end

Hierarchy to help understand the Parent/Child relationships in the event that that is what I messed up on.

https://gyazo.com/36021087292c35a8be3aa6580ad11215

Original combined code for Day/Night + Light on/off

lightPart = game.Workspace.StreetLamp.lightPart -- Directory for the light
minutesAfterMidnight = 0
while true do
    minutesAfterMidnight = minutesAfterMidnight + 10 --For Debugging
    game.Lighting:SetMinutesAfterMidnight(minutesAfterMidnight)
    wait(.1)

    if game.Lighting.TimeOfDay == "06:00:00" then
        lightPart.Material = Enum.Material.Plastic
        lightPart.PointLight.Enabled = false
    end
    if game.Lighting.TimeOfDay == "18:00:00" then
        lightPart.Material = Enum.Material.Neon
        lightPart.PointLight.Enabled = true
    end
end

Thank you in advance for your help and feedback

~MBacon15