How to save player lighting settings?

Hi, I made a script so if the player triggers a prompt the lighting change form day to night and from night to day. Basically I want that if a player leaves the experience and then rejoins, prompt settings get saved and they are the same of the players last visist.
To make it clear:
If the plr enables night via prompt and leaves the game, when he joins again its still night and the prompt shows the right actiontext.
Im new to coding and i tried with datastores but it didnt work. Do u know a way to do this?
the script:

local lighting = game:GetService("Lighting")
local prompt = workspace.Misc.Nyx.ProximityPrompt
local plr = game.Players.LocalPlayer

prompt.Triggered:Connect(function(plr)

	if prompt.ActionText == "Night" then


		-- Getting the lighting object
		local lighting = game:GetService("Lighting")

		-- Defining the time of day you want to transition to
		local timeOfDay = 24

		-- Defining the duration of the transition in seconds
		local duration = 3

		-- Getting the starting time of day
		local start = lighting.ClockTime

		-- Calculating the end time of day
		local target = 20

		-- Defining the rate of change
		local rate = (target - start) / duration

		-- Defining the end time
		local endTime = tick() + duration

		-- Loop until the end time is reached
		while tick() < endTime do
			-- Updating the clock time
			lighting.ClockTime = lighting.ClockTime + rate * wait()
		end

		-- Setting the final time of day
		lighting.ClockTime = target


		prompt.ActionText = "Day"
		lighting.FogColor = Color3.fromRGB(85, 0, 255)
		for _, ff in workspace.SoundRegions.LobbyArea:GetChildren() do
			ff.Enabled = true
		end

	elseif prompt.ActionText == "Day" then
		-- Getting the lighting object
		local lighting = game:GetService("Lighting")

		-- Defining the time of day you want to transition to
		local timeOfDay = 10

		-- Defining the duration of the transition in seconds
		local duration = 3

		-- Getting the starting time of day
		local start = lighting.ClockTime

		-- Calculating the end time of day
		local target = 10

		-- Defining the rate of change
		local rate = (target - start) / duration

		-- Defining the end time
		local endTime = tick() + duration

		-- Loop until the end time is reached
		while tick() < endTime do
			-- Updating the clock time
			lighting.ClockTime = lighting.ClockTime + rate * wait()
		end

		-- Setting the final time of day
		lighting.ClockTime = target

		prompt.ActionText = "Night"
		lighting.FogColor = Color3.fromRGB(144, 228, 248)
		for _, ff in workspace.SoundRegions.LobbyArea:GetChildren() do
			ff.Enabled = false
		end

	end

end)

You can just store the ClockTime as a number value then use datastore.