well if you are talking about bitcoin there is actually no time needed to have bitcoin we can buy bitcoin anytime you want and you want no word of delay to buy bitcoin. because bitcoin will crawl up in price.
It is not too late to buy bitcoin for now because the value of bitcoin is low and that is also good because if you buy bitcoin this time its not bad all you need to do is wait the bitcoin value going high and once it happen I sure your going be happy. If I we're you I will decide to buy bicoin now because this time is the good opportunity.