This is a standard Oracle Application Express (APEX) calendar region component showing a weekly view on events with a time component. This suits well to display conference or similar schedules. In this example you can select existing events to edit and date ranges in the calendar to create new events.

To have the edit dialog open upon clicking an existing event, navigate to the calendar components Edit Link attribute. Fill out the dialog to navigate to an application page containing the edit form and make sure to pass a primary key (which must be returned by your SQL query).

To have the edit dialog open upon selecting an empty date range (in order to create a new event), navigate to the calendar attribute Create Link. Fill out the dialog to navigate to the form page. The selected start and end timestamps must be passed to the form using the substitutions &APEX$NEW_START_DATE. and &APEX$NEW_END_DATE..