I have some questions about ICO and its duration. For example: Atlant ICO  lasted month and half, in the other hand Confideal ICO should last only 20 days.
I want to know if duration of ICO means something or not?

And my second question - Confideal ICO will start in 2 of November and end in 22 of November, In which day or part of ico better to buy tokens? I not sure abt this ico for 100%, and think to wait week or two and look how much ppl will invest and than make my final decision.