Samsung SPH-I300 - Manual (Page 143)

Section 12
140 Date Book
Scheduling Events
An entry in the Date Book is called an event. When you
schedule an event, a description is displayed on the timeline,
and the duration is set to 1 hour by default. You can easily
change the start time and duration for any event.
You can schedule the following types of events in the Date
Book:
ᮣ
Timed events, such as meetings, that have a specific date
and a specific start and end time.
ᮣ Untimed events, such as birthdays, holidays, and
anniversaries. These events occur on a particular date but
have no specific start or end times; they appear at the top
of the list of times marked with a diamond. You can
schedule more than one untimed event on the same date.
ᮣ
Repeating events, such as a weekly meeting that is held on
the same day at the same time each week.
ᮣ Continuous events, such as a vacation or three-day
conference.
ᮣ
All day events, which reflect the default length of the day as
set by the user.