This all depends on what the couple wants. Generally, weddings are about an 8hr event (5pm-1am) that entails cocktails, dinner, and reception. Squeezed in between is Wedding Intros, first, second dances, speeches, etc. However, some couples will have their ceremony at the venue, so the day ends up being a longer one. Toronto DJs have an allotted time for their service and once past that time, there can be extra charges. Every now and then, some couples will want to go to 2am. At this point, there will be extra charges for the DJ and probably the venue as well. It all depends on what you want.