Actually the flavor and smell is always better if u harvest after the plants have finished there last light cycle and let them chill for a few hrs,12 is great just remember when they are sitting in the dark make sure u have a dehumidifier so the humidity doesn't go thru the roof especially if u let them sit in the dark for a couple or 72 hrs. If ya harvest during day,or lights on your buds will have that hey smell and not so good taste. With the lights off for atleast a cycle there isn't all the chlorophyll pumping thru the plant and making the buds not need to cure for super long to get that nice taste and smell we all love.