Nobody really know the best time to invest in an ICO and if an ICO is going to be successful or not. There is bigger risk on investing in ICO than on current coins. But some pretend that they are still profitable.
The best ICO let alone the best time. It is not easy for all out there to find a best ICO and go for the venture. Rather, many among the tourists have lost big values in the ICO and no regret over their decisions.