World Time - Casio 3108 Operation Manual

To perform manual receive
1. Enter the Timekeeping Mode.
Receiving
2. Place the watch on a stable surface so its
12 o'clock side is facing towards a window.
3. Hold down D for about two seconds until RC!
appears on the display.
• Time calibration signal reception takes from
one to seven minutes. Take care that you do
not perform any button operations or move the
watch during this time.
Receive successful
• If the receive operation is successful, the
Receive time
reception date and time appear on the display,
along with the GET indicator.
The watch will enter the Timekeeping Mode if
you press D or if you do not perform any
button operation for about two or three minutes.
• If the current reception fails but a previous
reception was successful, the display shows
Receive date
the previous reception's date and time, and the
ERR indicator.
Receive failed
- - : - - indicates that none of the reception
operations were successful.
The watch will enter the Timekeeping Mode
without changing the time setting if you press
D or if you do not perform any button
operation for about two or three minutes.
To turn auto receive on and off
1. In the Timekeeping Mode, press D to display
the Last Signal screen.
2. Press A so the current auto receive setting
(on or OFF) is flashing. This is the setting
screen.
• Note that the setting screen will not appear
if the currently selected Home City is one
that does not support time calibration
On/Off status
reception.
3. Press D to toggle auto receive on (on) and off
(OFF).
4. Press A to exit the setting screen.
• For information about city codes that support
signal receive, see "To specify your Home City".
To check the latest signal reception results
In the Timekeeping Mode, press D to display the
Receive time
Last Signal screen.
• When receive is successful, the display shows
the time and date that receive was successful.
- - : - - indicates that none of the reception
operations were successful.
• To return to the Timekeeping Mode, press D.
Receive date
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal
reception.
Problem Probable Cause
• The watch is not in the
Cannot perform
manual Timekeeping Mode.
• Your current Home City is not
receive.
one of the following:
BJS or HKG
• Radio interference is often
present during the day time,
which can interfere with
calibration signal reception.
• The Home City code setting is
Time setting is
incorrect not correct for the area where
following signal you are using the watch.
reception.
• For further information, see "Important!" under "Time Calibration Signal
Reception" and "Radio-controlled Atomic Timekeeping Precautions".
Operation Guide 3108
What you should do
• Enter the Timekeeping
Mode and try again.
• Select BJS or HKG as
your Home City.
• Check to make sure the
watch is in a location
where it can receive the
signal.
• Select the correct Home
City code.

World Time

The World Time Mode shows you the current
time in 48 cities (29 time zones) around the
world.
• If the current time shown for a city is wrong,
check your Home City time settings and make
the necessary changes.
• All of the operations in this section are
performed in the World Time Mode, which you
City code
enter by pressing C.
Current time in
selected city
To view the time in another city
In the World Time Mode, use D (east) and B
(west) to scroll through the city codes (time
zones).
• For full information on city codes, see the "City
Code Table".
To toggle a city code time between Standard Time and Daylight
Saving Time
1. In the World Time Mode, use D or B to
display the city code (time zone) whose
Standard Time/Daylight Saving Time setting
you want to change.
2. Hold down A to toggle Daylight Saving Time
(DST indicator displayed) and Standard Time
(DST indicator not displayed).
• The DST indicator will appear whenever you
DST indicator
display a city code for which Daylight Saving
Time is turned on.
• Note that the DST/Standard Time setting
affects only the currently displayed city code.
Other city codes are not affected.
Stopwatch
The stopwatch lets you measure elapsed time,
Minutes Seconds
split times, and two finishes. It also includes Auto-
Start.
• The display range of the stopwatch is
999 hours, 59 minutes, 59.99 seconds.
• The stopwatch continues to run, restarting from
zero after it reaches its limit, until you stop it.
• The stopwatch measurement operation
continues even if you exit the Stopwatch Mode.
Hours
• Exiting the Stopwatch Mode while a split time is
frozen on the display clears the split time and
1/100 second
returns to elapsed time measurement.
• All of the operations in this section are
performed in the Stopwatch Mode, which you
enter by pressing C.
To measure times with the stopwatch
Elapsed Time
D ➤ D ➤
Start Stop
Split Time
D ➤ B ➤
Start Split
( SPL displayed)
Two Finishes
D ➤ B ➤
Start Split
First runner finishes.
Display time of first
runner.
About Auto-Start
With Auto-Start, the watch performs a 5-second countdown, and stopwatch
operation starts automatically when the countdown reaches zero.
During the final three seconds of the countdown, a beeper sounds with each
second.
To use Auto-Start
1. While the stopwatch screen is showing all
zeros in the Stopwatch Mode, press A.
• This displays a 5-second countdown screen.
• To return to the all zeros screen, press A
again.
2. Press D to start the countdown.
• When the countdown reaches zero, a tone
sounds and a stopwatch timing operation starts
automatically.
• Pressing D while the Auto-Start countdown is
in progress starts the stopwatch immediately.
B
D ➤ D ➤
Re-start Stop Clear
D B
B ➤ ➤
Split release Stop Clear
D ➤ B ➤ B
Stop Split release Clear
Second runner Display time of
finishes. second runner.
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