function getPromise(){

	return new Promise(() => function(resolve, reject){
		setTimeout(()=>resolve('done'), 5000);
	});
}

const aPromise = getPromise();

console.log('timer im promise already started !')

let time = new Date().getTime();

setTimeout(function(){
	console.log('Ha transcurrido', new Date().getTime() - time);

	aPromise.then(function(result){ console.log('Promesa finaliza. Ha transcurrido', new 	Date().getTime() - time, 'Deberia haber transcurrido 3000 (2000 + 1000) si la promesa fuera lazy')});

}, 2000)