program.js

var args = process.argv.slice(2);
var http = require('http');
var url = require('url');

var server = http.createServer(function(req, res) {
    if (req.method != 'GET') {
        res.end("Allows to use only GET HTTP request");
        return;
    }
    var parsedUrl = url.parse(req.url, true),
        date = new Date(parsedUrl.query.iso);

    var result = {};
    switch (parsedUrl.pathname) {
        case '/api/parsetime':
            result = {
                hour: date.getHours(),
                minute: date.getMinutes(),
                second: date.getSeconds()
            };
            res.writeHead(200, {
                'Content-Type': 'application/json'
            });
            res.write(JSON.stringify(result));
            break;
        case '/api/unixtime':
            result = {
                unixtime: date.getTime()
            };
            res.writeHead(200, {
                'Content-Type': 'application/json'
            });
            res.write(JSON.stringify(result));
            break;
        default:
            res.writeHead(404);
    }
    res.end();
});

server.listen(+args[0]);