what time do you have dinner on the weekends? (USA)

What time do you typically have dinner on the weekend? Second question if you were going over someone's house for a small get together at 2:30/3:00 would you expect dinner? To answer your question : I didn't really put an end time and I asked people to bring snacks and I'm making an appetizer/finger food and probably a batch of cookies. They're the type of people to not over stay their welcome since we have a little one so I wouldn't expect them to stay longer than 6