How much time should a motivational speaker spend speaking?

[Lindajackson]

Corporate keynotes typically last between thirty and sixty minutes, but depending on how practical the material is and how much practice time is included, workshop-style sessions may last up to several hours. The ideal duration for sustaining strong energy and emotional connection without losing audience focus is between forty and forty-five minutes. 60 to 90 minutes if there are group projects, interactive exercises, or breaks. Human attention spans naturally start to decline around 18 to 20 minutes, thus 15 to 20 minutes is a good fit (Curtis Leadership and Training).