Is there actual time to buy bitcoin? However, I can’t tell you how safe it is to buy bitcoin; rather, you should make your own research on how safe it is to invest in bitcoin so that you will know everything about it, and you will know what you are up to. Moreover, there is no actual time to invest in bitcoin, but any time you have the money to invest, you can, regardless of the price at that moment in which you invest, since investing in bitcoin requires a long period of time before you can take profit.