node_time.js

var net = require('net'),
  port = Number(process.argv[2])

var process_connection = function(socket) {
  var date = populate_datetime(new Date())
  socket.end(datetime_to_string(date))
}

var zeroify = function(number) {
  if (number.length < 2)
    number = "0" + number 
  return number
}

var populate_datetime = function(today){
  console.log("Populating datetime")
  return {
    "year": zeroify(today.getFullYear().toString()),
    "month": zeroify((today.getMonth() + 1).toString()),
    "day": zeroify(today.getDate().toString()),
    "hours": zeroify(today.getHours().toString()),
    "minutes": zeroify(today.getMinutes().toString())
  }
}

var datetime_to_string = function(date) {
  return  (date.year + '-' +
          date.month + '-' +
          date.day + ' ' +
          date.hours + ':' +
          date.minutes + '\n')
}

var server = net.createServer(process_connection)
server.listen(port)