FET is freesoftware forautomaticallyscheduling thetimetable of aschool,high-school oruniversity. Ituses a fast andefficienttimetablingalgorithm. Usually, FET isable to solve acomplicatedtimetable inmaximum 5-20minutes. Forsimplertimetables, itmay take ashorter time,under 5 minutes(in some cases,a matter ofseconds). Forextremelydifficulttimetables, itmay take alonger time, amatter ofhours.