How would I use os.time?[Still need help.]

I read the page for os time and I wonder if I could make a bonus like give the player points every time they play every day.

I think it should work like this:

game.Players.PlayerAdded:connect(function(player)
	if player:WaitForDataReady() and player:LoadNumber("TimeSinceLastOn") < os.time(day) then
		player.leaderstats.Points = player.leaderstats.Points +10
	end
end)

game.PlayerRemoving:connect(function(player)
	player:SaveNumber("TimeSinceLastOn", os.time(day))
end)

game.OnClose:connect(function()
	wait(30)
end)


--Am I close? How would I do this for hours, years, minutes, or seconds even?

So would this work as a ban script?

game.Players.PlayerAdded:connect(function(plyr)
	local banned = false
	if plyr:WaitForDataReady() and plyr:LoadNumber("BanTimeLeft") >= 0 then
	print(plyr.Name..", don't curse again.")
	elseif plyr:LoadBoolean("IsBanned") and BanIfCurse then
        Instance.new("Message", plyr).Text = "You're banned for cursing. You may play again after: "..plyr:LoadNumber("BanTimeLeft")
	end
	plyr.CharacterAdded:connect(function(char)
		plyr.Chatted:connect(function(chat, chatter)
			if chat == "[Content Deleted]" and BanIfCurse then
				plyr:SaveBoolean("IsBanned", true)
				plyr:SaveBoolean("BanTimeLeft", BanTime)
				plyr:Kick()
			else
				
			end
		end)
	end)
end)

day isn't defined, so using that wouldn't make sense.

os.time() returns number of seconds; a day is 60 * 60 * 24 seconds.

Besides that, your script is missing something. You will punish players for coming back more often than every 24 hours, since every time they leave, the time is reset.

Instead, reset the time when they get their reward.

function join(player)
	if player:WaitForDataReady() then
		local nextReward = player:LoadNumber("NextReward")
		local newPlayer = nextReward == 0
		-- 
		local now = os.clock()
		-- if now is before next reward time (or they are a new player)
		if now <= nextReward or newPlayer then
			-- <Give reward here>
			local tomorrow = now + 60 * 60 * 24 -- now plus a day
			player:SaveNumber("NextReward", tomorrow )
		end
	end
end

It's very very similar for identifying someone for, say, a day:

local banTime = 60 * 60 * 24 -- one day

function ban(player)
	local now = os.clock()
	-- They are banned until now plus one day
	player:SaveNumber("BannedUntil", now + banTime)
	player:Kick()
end

function join(player)
	player:WaitForDataReady()
	local now = os.clock()
	if now < player:LoadNumber("BannedUntil") then
		-- now is before ban ends?
		player:Kick()
	end
end