... Institute on Out-of-School Time defines out-of-school time programs as encompassing a wide range of program offerings for young people that take place before school, after school, on weekends, ... It is a kind of out of school time program for students. Out of School Time (OST) is a general term that describes any structured programs outside of the normal school day hours. "The ... of preferred schools for high school students, which goes down from the 3rd rank in two previous years. This brings a question whether AOF is losing its attractiveness to high school students....