Roblox Realtime Clock

--Realtime clock that will appear at the top of your screen in 12 hour format, with a rainbow colour border

local player = game:GetService("Players").LocalPlayer

local function makeGui()
  local gui = Instance.new("ScreenGui")
  local textLabel = Instance.new("TextLabel")
  local frame = Instance.new("Frame")

  gui.Name = "TimeDisplay"
  frame.Name = "Background"
  frame.Parent = gui
  frame.BackgroundColor3 = Color3.new(0.2, 0.2, 0.2)
  frame.Position = UDim2.new(0.5, 0, 0, 0)
  frame.Size = UDim2.new(0, 150, 0, 50)
  frame.AnchorPoint = Vector2.new(0.5, 0)

  textLabel.Name = "Time"
  textLabel.Parent = frame
  textLabel.Text = tostring(os.date("%I:%M:%S %p"))
  textLabel.Position = UDim2.new(0.5, 0, 0.5, 0)
  textLabel.Size = UDim2.new(0, 100, 0, 50)
  textLabel.TextScaled = true
  textLabel.TextWrapped = true
  textLabel.TextColor3 = Color3.new(1, 1, 1)
  textLabel.BackgroundTransparency = 1
  textLabel.AnchorPoint = Vector2.new(0.5, 0.5)

  gui.Parent = player:WaitForChild("PlayerGui")

  local hue = 0
  while true do
    wait(0.01)
    hue = hue + 0.01
    if hue >= 1 then
      hue = 0
    end
    frame.BorderColor3 = Color3.fromHSV(hue, 1, 1)
    textLabel.Text = tostring(os.date("%I:%M:%S %p"))
  end
end

while true do
  if not player:FindFirstChild("PlayerGui"):FindFirstChild("TimeDisplay") then
    makeGui()
  end
  wait(1)
end