How do I make a part that gives leaderstats for as long as your on it?

Ah yes, I have tested your script and finally found the issue. You see you created the leaderboard 'survivaltime' within a function. and you name survivaltime = Time1. However, you use this variable 'Time1' in another function. But functions cannot read from other functions. So i suggest making Time1 a global variable. so instead of making a leaderstats inside a function, you should make it at the start of the script. and then modify it inside the function. make sure the thing that fires the function goes at the end of the script!!

Heres an example:

-- Put this code in serverscript service inside a script!

local dataStoreService = game:GetService("DataStoreService")

game.Players.PlayerAdded:Connect(function(Player)
	local Stat = Instance.new("IntValue")
	Stat.Name = "leaderstats"

	local Time1 = Instance.new("IntValue")
	Time1.Name = "SurvivalTime"
	Time1.Value = 0

	Time1.Parent = Stat
	Stat.Parent = Player
end)


-- put this part of the code inside the part you are detecting collisions for, inside a script.

local part = script.Parent
x = 1
local debounce = false

local function onPartTouched(otherpart)
	local partParent = otherpart.Parent
	local humanoid = partParent:FindFirstChildWhichIsA("Humanoid")
	if humanoid then
		print("humanoid found!")
		while wait(1) do
			if not debounce then
				debounce = true
			    for i,plr in pairs(game.Players:GetChildren()) do
				   local ls = plr:FindFirstChild("leaderstats")
				   if ls then
					  local Time = ls:FindFirstChild('SurvivalTime')
					  if Time then
						  Time.Value = Time.Value + 1
							wait(1)
							debounce = false
				   end
			  end
		  end
	  end
  end
end
end
part.Touched:Connect(onPartTouched)

This code is guaranteed to work! if you look closely you get the idea that I create Stats and Time at the start of the script and not in a function, that way, it is a variable everyone knows inside the script!

So all in all, a function is like private information that noone but that exact function can see. So if you create a variable inside a function you cannot use it anywhere else, so dont make Stats and Time inside a function, make it outside a function in the script.

Hope this wasn't too confusing!

Any questions? Just ask!

PS - i think you also forgot to put a local in the function onTouched!!, also make sure to put a bracket at the end of 'end' to close the function of PlayerAdded!!

This code has been edited as to make sure it works!