The ACT is a standardized test used by US colleges for admissions. It consists of four multiple choice sections in English, math, reading and science, plus an optional writing test. The test takes around 3 hours and 30 minutes to complete. Results are accepted by all US 4-year colleges. The ACT is administered several times per year in Serbia at the International Academic Center in Belgrade. Most scores are available online within 2 1/2 weeks of the test date. Students typically take the ACT or SAT in spring of their penultimate year of high school.