Omeluum is a LONG way into the game. And he's the only person that says anything to suggest with any viability that you don't need to worry about turning if you take to long. Other people say it's happening slower, but that doesn't mean anything. At any point the next hour could still be the hour it happens. No matter how many days have passed already, the next night is still liable to be the one where you turn. Only the line where "it's not happening at all" matters.
Omellum is the only one that spells out the "how", but Raphael also implies that you are not in immediate danger of turning until a specific point (and he will be there to offer his deal then). And he sounds like he knows more about the situation than Omellum.