As a recondo veteran (so listen when I say DON'T go on Recondo!)...
Recondo meets 3 days a week during intermurals and sometimes 5 days a week when there are no intermurals. The workouts are usually from 1645-1800(ish). The "ish" depends on the day, the workout, and the CIC. I had days where Maj. Tiernan cut off my CIC at 1835 and kicked us out. The workouts are usually set for the first 2 days of the week and Fridays are whatever the CIC determines (running suicides for an hour+ isn't fun).
You get on recondo by scoring below 200 on the 2nd BCT PFT/AFT or if your PEA drops below 2.0 (which is 50% PFT, 35% PE class, and 15% AFT). On the PFT and AFT, 250 is the 2.0 mark.
Being on recondo also means you are on probation. You are not allowed to sign out without AOC approval, and are subject to a PERC (review committee which can kick you out if you don't improve).