Date, Time, And Language - Nikon D300 Complete Manual

Use all the time
Format memory card
Clean image sensor
Battery info
Yet look at the order in which these items appear in the
SETUP menu: it doesn't reflect their likelihood of use. MY
MENU gives you a method of dealing with this (see "MY
MENU" on page <470>), and I'd strongly suggest that you
consider moving any SETUP item you use frequently to the
MY MENU menu.
In this section of the eBook, however, we're simply looking to
get the camera set up properly for shooting. Individual settings
we might change in response to the scene we're
photographing or the equipment we're using will be dealt
with later (note the "see..." pointers after most items in the
initial description of each item, above).

Date, Time, and Language

As noted in the section on power, an internal battery powers a
clock/calendar function within the D300. The clock/calendar
is used to add information to the EXIF header about when a
picture was taken.
Note: If the & icon is blinking near the top left corner of the top
LCD, then the internal battery ran low on power and the
date and time were reset. Make sure that the camera is
either on AC power or has a fully charged battery in it for
the next three days in order to recharge the internal battery.
Thom Hogan's Complete Guide to the Nikon D300
Use less often
LCD brightness
Lock mirror up
World time
HDMI
Wireless trans.
Image authentic.
Save/load settings
GPS
Non-CPU lens data
Use once or rarely
Video mode
Language
Image comment
Auto image rotation
USB
AF fine tune
Firmware version
Page 198
V1.02