stopper

A minimal JavaScript stopwatch object to count and measure time in your Node.js or browser applications.

(() => {
  'use strict';

  const Stopper = require('stopper')  
    , util = require('util');

  const stp = new Stopper('A nice but optional name');

  stp.start();

  setTimeout(() => {
    stp.stop();

    util.log(stp.measure());
  }, 600);
})();

$ > node test.js
20 Jun 09:36:58 - 603