Our sims are generally planned with 45 minutes before the start, they run for 4 hours, and then 15 minutes afterwards. Extra briefing time may be included occasionally. If there are (say) 13 sims in a course, then they will probably all occur at similar times. That number of sims would take 3 to 4 weeks.
On that same course, you might have 5-6 instructors. They don't more than one sim on a 'shift'.
