Around here, it can be very difficult to schedule a regular public meeting. With winter coming up, there's the Thanksgiving and Christmas holidays. In exurban communities, deer gun season is off-limits. It's a bad idea to have a meeting a week before or after, too.
One custom I never encountered until I started working here, though - in exurban areas, Wednesday is off-limits for meetings. Why? Church. I don't know why, but around here, in the semi-rural areas at the edge of the county, it seems like everybody goes to church on Wednesday night. What's the deal with that?