local monitors = {peripheral.find("monitor")}

for i=1,#monitors do
  monitors[i].clear()
  monitors[i].setTextScale(3.5)
end

local function centerText(text)
  for i=1,#monitors do
    local x,y = monitors[i].getSize()
    local x2,y2 = monitors[i].getCursorPos()
    monitors[i].setCursorPos(math.ceil((x / 2) - (text:len() / 2)), y2)
    monitors[i].write(text)
    sleep(0.1)
  end
end

if (fs.exists("/timezone")) then

else
    print("Enter TimeZone:")
    local filewrite = fs.open("/timezone","w")
    filewrite.writeLine(read())
    filewrite.close()

    local start = fs.open("/startup","w")
    start.writeLine('shell.run("time")')
    start.close()
end

fileread = fs.open("/timezone","r")
local timezone = fileread.readAll()
fileread.close()

while true do

  if (redstone.getInput("right")) then
    centerText(http.get("http://www.timeapi.io/"..timezone.."/in+one+hour?format=%20%25l:%25M%20%25p").readAll())
  else
    centerText(http.get("http://www.timeapi.io/"..timezone.."/now?format=%20%25l:%25M%20%25p").readAll())
  end

  sleep(0.5)
end