At the current moment, there is no way to have more than 24 hours as a duration in Sesami. Sesami works by adding booking slots based on minutes and hours on your calendar from your duration variant(s). However, those booking slots do not go from one day to the next and so the available calendar time frames needs to be within 0h to 24h (or 12am to 12am) on one day.
How can I have more than 24 hours booking?
