It's really up to the members of the committee to determine how that number of days could be determined or identified. Among those things, it would be for the member to identify the number of days that would be required, or for the petitioner to determine how many days could be useful.
At the same time, there could be other possibilities. Let's say a petitioner identifies 30 days and there are 445 signatures after 30 days. Could there be a possibility of getting an extension, for instance, to 60 days, or things like that? These are a part of the possibilities that exist.
There is importance to having a deadline, however, and it really has to do with the personal information gathered. The fact is that when you have a deadline, the petition will be closed at that point, and eventually all of the information related to it will be disposed of. That's the important part of having a deadline for petitions.