Agenda sections are set to default to today's date, if there are sessions scheduled. This means that during the event, attendees will automatically see the sessions that are happening on that particular day.
An On Now option will also be available at the top of the Agenda menu to showcase the sessions that are happening at the moment.
Note: If you are accessing the Event Space outside of the event dates and/or if there are no scheduled sessions for today's date, then the Agenda section will default to the first day of scheduled sessions.