I did a basic analysis a while ago on posts on Steemit. It was difficult and very superficial but I think the two best times are between 3am New York time and 9am LA time.
If you cannot get your story out at those hours I would aim for 6pm NYC time till 9pm LA time. Who really knows but I think that is when I have had my most meager successes : )
C U @ BlockChain ; )
coor!