Different format events may require different keynotes of different lengths. However it’s often been notes that Ted Talks are roughly 18 minutes for a reason. Generally this is enough time to present a single idea really well. It allows for a structure that facilitates context, nuance, story telling and ultimately the lesson or insight from the presenter. Conference or event keynotes generally target 45 to 60 minutes which may also including Q&A. This works in with conference session timing and allows the speaker to engage the audience in a deeper way exploring the topic and ensuring greater takeaways and return on the value time with the audience for the session. This duration is also brief enough to ensure both the speaker and the audience don’t fatigue from the spending too long on a topic.
Leadership offsites often prefer 30–45 minutes plus facilitated discussion. If you tell me your agenda flow, we can recommend a length that fits the energy you want.
