Fuzzy logic timelapse simulation

fuzz.js

var fuzzylogic = require('fuzzylogic'),
    colors = require('colors');

function simulate(ttl){
    var timelapse = ttl*1000;

    var half = timelapse /2;
    var qrt = half/2;

    //Cuando se guardó el caché
    //El tiempo de ahorita menos 3 horas
    var cached_time = (new Date("09-13-15 22:00:00")).getTime();
    var mid_time = cached_time + half+qrt;
    var expiration_time = cached_time + timelapse;

    console.log("Simulating :: ", ttl);

    for(var i = 1; i < 24; i++) {
        //36 veces cada 5 minutos
        var request_time = cached_time + (i*(timelapse/24));
         
        var fuzzy = fuzzylogic.trapezoid(request_time, cached_time, cached_time, mid_time, expiration_time);
        var valid = Boolean(Math.round(fuzzy));
        console.log(i.toString(),")Fuzzy ::", fuzzy,". transcurred :: ", (request_time-cached_time));
        console.log(i.toString(),")valid ::", valid ? valid.toString().green : valid.toString().red);
    }
    console.log("--------".green);
}
simulate(21600);//6 horas
simulate(3600); //1 hora
simulate(43200);//12 horas
simulate(86400);//1 día