Yes. Webinars are scheduled for a set duration. The maximum duration limit that can be booked is 240 minutes.
Please note: the above represents the maximum duration that can be scheduled. Most commonly, channel owners choose to schedule a 45/60 minute webinar.
You will be alerted when you approach the end of the allocated time. BrightTALK allows webinars to over-run the scheduled duration by 4 minutes, after which your event will be automatically ended. Also, please be aware that scheduled durations are tied to the scheduled start time. If you start the presentation late, you will have already used up some of your scheduled duration time.