Arby's restaurants' exact opening and closing hours depend on the store's franchise operator, location, and other factors. Each store's opening hours vary between 9 and 11 AM, but it's generally 10 AM for most locations. The closing hours are between 10 PM and 12 AM. Some locations close at 10 PM every day, and some close at 10 PM on weekdays and at 11 PM or 12 AM on the weekends.