How late can an outdoor concert go on for?

The permissible end time for an outdoor concert typically depends on local noise ordinances and regulations, which can vary by city or municipality. Many areas have restrictions that require events to conclude by 10 PM or 11 PM on weekdays, and sometimes later on weekends. Additionally, the venue's specific permits and agreements with local authorities may also influence the concert's ending time. It's essential for organizers to comply with these regulations to avoid fines or disruptions.