How may I create an automatic Spotlight/Pointlight?

Enabled property of SpotLights, PointLights, Fire, Smoke, and I believe Sparkles.

Use the TimeOfDay property in game.Lighting and if the time is more than or less than your desired times, create or destroy the pointlight.

--May not work I thought of it right at the top of my head
while true do
if game.Lighting.TimeOfDay == 00:00:00 then --Edit this to the time of the light is on
game.Lighting.PointLight:clone().Parent = game.Workspace.Light
if game.Lighting.TimeOfDay == 00:00:00 then --Edit this to the time of the light is off
game.Workspace.Light.PointLight:Remove()
end
end

This is kind of a mix of the second and third answers.

while true do
    if game.Lighting.TimeOfDay ==12:00:00 then
        game.Workspace.Brick.PointLight.Enabled = true -- change Brick to the brick, and PointLight to Spotlight if its a Spotlight
    elseif game.Lighting.TimeOfDay == 00:00:00 then  -- change Brick to the brick, and PointLight to Spotlight if its a Spotlight
        game.Workspace.Brick.PointLight.Enabled = false
    end
end

Place a block right click on the block you placed point your mouse to insert part click the spotlight and you can use propertys to changer distance and brightness