old_contents: var express = require('express');
  var app = express();
  
  
  app.use(express.static('public') );
  
  app.get('/',function(req,res){
    res.sendFile('index.html');
  });
  
  
  app.get('/:TIME', function(req, res){
      var input = req.params.TIME;
      var date;
      if( isNaN(input) ){
          date = new Date(req.params.TIME);
      } else {
          date = new Date();
          date.setTime(input);
      }
      
      var result = { 
          "unix": date.getTime(),
          "natural": date.toDateString() === 'Invalid Date'?null:date.toDateString()
      }
      
      res.setHeader('Content-Type', 'application/json');
      res.end(JSON.stringify(result));
  });
  
  var port = process.env.PORT || 8080;
  app.listen(port);
new_contents: var express = require('express');
  var app = express();
  
  
  app.use(express.static('public') );
  
  app.get('/',function(req,res){
    res.sendFile('index.html');
  });
  
  
  app.get('/:TIME', function(req, res){
      var input = req.params.TIME;
      var date;
      if( isNaN(input) ){
          date = new Date(req.params.TIME);
      } else {
          date = new Date();
          date.setTime(input);
      }
      
      var result = { 
          "unix": date.getTime(),
          "natural": date.toDateString() === 'Invalid Date'?null:date.toDateString()
      }
      
      res.setHeader('Content-Type', 'application/json');
      res.end(JSON.stringify(result));
  });
  
  var port = process.env.PORT || 8080; 
  app.listen(port);
subject: Fix Heroku port