There's no specific date and time for it. One can start their niche and it's ICO anytime they think might grasp more attention.
Am I missing something??? Why can't devs launch ICOs only when market is stable to avoid not getting listed ,I'm hearing 6months from few projects before getting listed ,this is very annoying. Start ICO when market condition is pretty stable ,it won't hurt and would be better for every one ,there won't be any complains from bounty hunter side too
No one can't predict how the market is going to be for the ext day so they can't do anything if the market falls to deep,if someone is legit they might return your money if they can't do that project with the money they have made the rest will be fade away.
No one returns after an ICO is complete. Even after the project fails the money is long gone by then.