G-Shock GDF-100 - Manual (Page 2)

Operation Guide 3255
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Selecting a Mode
• The illustration below shows which buttons you need to press to navigate between
modes.
• In any mode (except when a setting screen, with fl ashing digits is on the display),
press D to illuminate the display.
World Time Mode
Barometer/
Thermometer Mode
Stopwatch Mode
Countdown
Timer Mode
World Time Mode
Barometer/
Thermometer Mode
Stopwatch Mode
Countdown
Timer Mode
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Alarm Mode
Altimeter Mode
Timekeeping Mode
Alarm Mode
Altimeter Mode
Timekeeping Mode
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General Functions (All Modes)
The functions and operations described in this section can be used in all of the modes.
Auto Return Features
• The watch returns to the Timekeeping Mode automatically if you do not perform any
button operation for two or three minutes in the Alarm Mode.
• The watch will return to the Timekeeping Mode automatically if you do not perform
any operation for about one hour after entering the Barometer/Thermometer Mode.
• If you leave a setting screen with fl ashing digits on the display for two or three minutes
without performing any operation, the watch exits the setting screen automatically.
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the mode appears fi rst.
Scrolling
The
C and D buttons are used on the setting screen to scroll through data on the
display. In most cases, holding down these buttons during a scroll operation scrolls
through the data at high speed.
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Timekeeping
Use the Timekeeping Mode to set and view the current
time and date.
• In the Timekeeping Mode, the graphic in the upper right
corner of the display indicates the passage of seconds.
PM indicator
Day of week
Month Day
Seconds
Graphic
Hour : Minutes
PM indicator
Day of week
Month Day
Seconds
Graphic
Hour : Minutes
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Confi guring Home City Settings
There are two Home City settings: actually selecting the Home City and selecting
either standard time or daylight saving time (DST).
To confi gure Home City settings
1. In the Timekeeping Mode, hold down
A until the
currently selected city code (Home City) starts to fl ash.
This is the city code setting screen.
• Before the city code starts to fl ash, the message
SET Hold will appear on the display. Keep A
depressed until SET Hold disappears and the city
code starts to fl ash.
• The watch will exit the setting mode automatically if
you do not perform any operation for about two or
three minutes.
• For details about city codes, see the “City Code
Table” at the back of this manual.
PM indicator
City code
Seconds
Hour : Minutes
PM indicator
City code
Seconds
Hour : Minutes
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2. Press C (East) and D (West) to select the city code
you want to use as your Home City.
• Keep pressing C or D until the city code you want
to select as your Home City appears on the display.
3. Press B to display the DST setting screen.
4. Press C to toggle between Daylight Saving Time (On)
and Standard Time (OFF).
• Note that you cannot switch between standard
time and daylight saving time (DST) while UTC is
selected as your Home City.
5. After all the settings are the way you want, press A to return to the Timekeeping Mode.
• The DST indicator appears to indicate that Daylight Saving Time is turned on.
Note
• After you specify a city code, the watch will use UTC* offsets in the World Time
Mode to calculate the current time for other time zones based on the current
time in your Home City.
* Coordinated Universal Time, the world-wide scientifi c standard of timekeeping.
The reference point for UTC is Greenwich, England.
Setting
DST indicator
Setting
DST indicator
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To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down A until the
currently selected city code (Home City) starts to fl ash.
This is the city code setting screen.
• Before the city code starts to fl ash, the message
SET Hold will appear on the display. Keep A
depressed until SET Hold disappears and the city
code starts to fl ash.
2. Press B to display the DST setting screen.
3. Press C to toggle between Daylight Saving Time (On)
and Standard Time (OFF).
4. After all the settings are the way you want, press A to
return to the Timekeeping Mode.
• The DST indicator appears to indicate that Daylight
Saving Time is turned on.
Setting
DST indicator
Setting
DST indicator
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Confi guring Current Time and Date Settings
You can use the procedure below to adjust the current time and date settings if they
are off.
To change the current time and date settings
1. In the Timekeeping Mode, hold down A until the
currently selected city code (Home City) starts to fl ash.
This is the city code setting screen.
• Before the city code starts to fl ash, the message
SET Hold will appear on the display. Keep A
depressed until SET Hold disappears and the city
code starts to fl ash.
2. Use C and D to select the city code you want.
• Select your Home City code before changing any
other setting.
• For full information on city codes, see the “City
Code Table” at the back of this manual.
PM indicator
City code
Seconds Hour : Minutes
PM indicator
City code
Seconds Hour : Minutes
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3. Press B to move the fl ashing in the sequence shown below to select the other settings.
Barometer
unit Temperature
unit Illumination
Duration Button Operation
Tone On/Off Day
City
Code
DST
Altitude
unit
12/24-Hour
Format
Seconds Hour Minute Year Month
• The following steps explain how to confi gure timekeeping settings only.
4. When the timekeeping setting you want to change is fl ashing, use C and/or D to
change it as described below.
Screen To do this: Do this:
Change the city code
Use C (East) and
D (West).
Toggle between Daylight Saving Time (On)
and Standard Time (OFF).
Press C.
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Screen To do this: Do this:
Toggle between 12-hour (12H) and 24-hour
(24H) timekeeping.
Press C.
50
Reset the seconds to 00 Press C.
Change the hour or minute
Use C (+) and D
(–).
Change the year, month, or day
5. Press A to exit the setting screen.