I found this article interesting. It features proms from around the world. Enjoy.
In South Africa, the equivalent of the American prom is the Matric Dance, taking place during the matriculation (i.e., final) year of high school (12th grade). It takes place towards the end of the third quarter, shortly before the spring break, after which the matriculation examinations commence. It usually takes the form of a formal dinner and dance. In most schools, the 11th grade class is responsible for arranging the event. Sometimes teachers and parents also attend. Click here to read more.