Murphy’s law normally applies during a presentation. Technology not working, power cuts, There is an old adage that said – “No one ever complained of a presentation being too short.” Nothing kills a presentation more than going on too long.
There are some college professors who will penalise a short presentation (most lecturers see no problem in droning on) , but for most people a shorter presentation is better. Keep your presentation to under 22 minutes if you can.