The Surabaya International School is a private, coeducational day school which offers an educational program from preschool (age 3 by first of November) through grade 12. The School, founded in 1971, is established under Indonesian law with the status of a foundation (Yayasan). The school year comprises 4 quarters extending approximately from late August to mid-October, mid-October to mid-December, mid-January to mid-March, and mid-March to early June.