Is there a way to add a cooldown to a button?

I'm trying to make it so when a player clicks a button the button waits for 3 seconds before it can work again but every time I tried to do it if the player spam clicks it the function still gets spammed, is there any way to add a cooldown to when the button can be pressed?

Discord: Unknown Intelligence#6569

local bool = true

local Players = game:GetService("Players")
 
Players.PlayerAdded:Connect(function(player)
	local light = game:GetService("Lighting")
light.TimeOfDay = 1
light.FogEnd = 50
light.FogStart = 20
light.Brightness = 0
light.FogColor = Color3.new(0,0,0)
	
end)


function onMouseClick()

if bool == true then
local light = game:GetService("Lighting")
script.Lightson:Play()
light.TimeOfDay = 12
light.FogEnd = 1000000
light.FogStart = 0
bool = false
	else if bool == false then
	local light = game:GetService("Lighting")
script.Lightsoff:Play()
light.TimeOfDay = 1
light.Brightness = 0
light.FogColor = Color3.new(0,0,0)
light.FogEnd = 50
light.FogStart = 25
bool = true
end
end
end
		script.Parent.ClickDetector.MouseClick:connect(onMouseClick)