How do I fix this?

	local m = chooseDisaster():clone()

	function removeD()
		m:remove()
	end	
	
	function countdown(time)
	game.Workspace.CDHint.Value = string.format(disasterCountdown, tostring(time))
	while (time > 0) do
		wait(1)
		time = time - 1
		game.Workspace.CDHint.Value = string.format(disasterCountdown, tostring(time))
	end
	removeD()
	return true
	end

This is supposed to make it so that when the disaster comes it will countdown the seconds left until the disaster ends, the CDHint shows up, but when it does the disaster ends right away and the CDHint is still counting down. Help please?