Tmer

while true do
	local timer = script.Parent
	local minutes = 0
	local seconds = 60

	repeat
		if seconds <= 0  then
			minutes = minutes - 1
			seconds = 59
		else
			seconds = seconds - 1
		end

		if seconds <= 9 then
			timer.Text = tostring(minutes)..":0"..tostring(seconds)
		else
			timer.Text = tostring(minutes)..":"..tostring(seconds)
		end
		wait(1)
	until minutes <= 0 and seconds <= 0

	if minutes <= 0 and seconds <= 0 then
		for i , v in pairs(game.Players:GetChildren()) do
			game.ReplicatedStorage.KillAllPlayers:FireServer(v)
			minutes = 0
			seconds = 60
		end
	end
end