By default the list of events under the main live view window are limited to just a few hours.  To access all of the events select 'Events' in the top left corner of the UI.

From the screen below you can select the camera(s) you want to view events on, along with the date.  You can also filter by event types (motion, continuous, alarm, etc)

Once you select the date click 'Load events', this is a very important step, otherwise the server will not display any events.