The main and most important task of KOrganizer is keeping track of your personal calendar information. It handles all kinds of events, like meetings, birthdays, vacations etc.
Put your data into KOrganizer and use the various views to display it. There are views for day, week, work-week, month and a list view. You can edit and move around events, print them or send them per e-mail to a colleague.
You can also archive old events, merge in other calendars, search for events and more. More features for handling your events are: