[Dilettante_Pro]

var shops = [],
      obj={},
      numShop = 5;

for (var i = 1; i <= numShop; i++) {
        
        obj.timeOpen = 6 + Math.round(Math.random()*17);
        obj.timeClose = 23 - Math.round(Math.random() * (23 - obj.timeOpen));
        obj.numBread = Math.round(Math.random()*10);
        shops[i] = obj;
                     
    }
alert(JSON.stringify(shops[3]));
alert(shops[3].timeClose);