I am trying to save the time a player last joined for a daily reward system, however, it returns nil once returning to the game every time, why is that? 

local DataStore = game:GetService("DataStoreService"):GetDataStore("Delay")
local hourWait = 24




game.Players.PlayerAdded:Connect(function(player)

	local Time = os.time()
	local data 
	pcall(function()
		data = DataStore:GetAsync(player.UserId.."-Delay")
		print("Checking data for Daily Reward")
	end)


	if data ~= nil then

print("DATA IS NOT NIL")
		local timeSinceLastPlayed = Time - data
		player:WaitForChild("TimeSinceLastJoin").Value = timeSinceLastPlayed
		print("time since last joined was"..timeSinceLastPlayed)

		print("Last reward claimed at "..timeSinceLastPlayed)
		if (timeSinceLastPlayed/3600) >= hourWait then
			

			-- give reward


			DataStore:SetAsync(player.UserId.."-Delay",os.time())
		end

	else

		print("no data")-- No data
	end


	game.Players.PlayerRemoving:Connect(function(player)
		local data

		pcall(function()
			data = DataStore:GetAsync(player.UserId.."-Delay")
			print("checking data")
               print("your data is " .. data)

		end)
		if data == nil then
			
			pcall(function()
				local timeValue = os.time()
				DataStore:SetAsync(player.UserId.."-Delay")
			
				-- data for new player saved
			end)
		end
	end)


end)
Anonymous