Garmin GNC 300 Pilot's Manual page 35

When the count down timer reaches zero, you will be informed with a 'Timer
expired' message. The timer will then begin to count up, keeping track of how long it
has been since it expired. The timers run, if not altered, anytime the GNC 300 is on.
The GNC 300 clock function keeps track of both UTC time (Greenwich Mean
Time or Zulu Time calculated from the satellites) and local time, and allows you to
designate which format is used for ETA calculations. The local time and date can be
set without doing a UTC to local time conversion.
To set the local date/time:
N O
1. Press and rotate
C
2. Press twice and rotate
K
3. Use to select either 'UTC' or 'local' time to be displayed in the time fields. Press
K O
4. Use and to set the local date. Press
K O
5. Use and to set the local time. Press
C
6. Press to complete.
The GNC 300' s trip timer will automatically keep track of the duration of your
current trip and can be configured to run when the GNC 300 is on, or when your
ground speed exceeds a specified value (see Section 7).
To view or reset the trip timer:
N O
1. Press and rotate
C
2. Press twice and rotate
time of day, departure time, and time enroute will be displayed.
E
3. To reset the timer, press
until NAV Menu 2 is displayed.
O E
until 'Clock?' is highlighted. Press
E
.
E
.
until NAV Menu 2 is displayed.
O
until 'Trip time?' is highlighted. Press
C
. To skip resetting the timer, press
.
E
.
E
. The current
.
REFERENCE
NAV KEY SECTION
1
Comm Features
NAV Menu 2
Clock & Trip Timer
Timer expired message.
Entering a local time.
Resetting the trip timer.
25