HP R818 - Manual (Page 119)

119 Using the Setup Menu
Date & Time
This setting allows you to set the date/time format as well as
the current date and time for the camera.
The camera uses the date/time format to display the date
information in Playback and in the Date & Time Imprint
feature (see page 81).
1. In the Setup Menu (see page 113), select Date & Time.
2. Use the
buttons to adjust
the value of the highlighted
selection.
3. Press the buttons to move to
the other selections.
4. Repeat steps 2 and 3 until the
correct date/time format, date,
and time are set.
5. Press to save the setting and return to the Setup
Menu.
The new setting remains in effect until it is changed again,
even when you turn the camera off.
NOTE: The Date & Time settings remain current as long as
the camera battery has a charge, the battery is removed
for less than 10 minutes, or the camera is connected to an
HP AC power adapter.