How long your wedding ceremony lasts depends on the type of service you are having. If it is a Catholic service, for example, a ceremony can last up to an hour and a half, whereas a civil ceremony is generally much quicker and can take into account as many or as few verses and speeches as you would like.
Be sure to speak with your wedding venue and registrar to ensure you have set aside enough time for the perfect ceremony within your package and that set up and take down of the venue space is accounted for.