Timekeeping, Reference, Operation guide 3195 – G-Shock GW-2310 User Manual

Page 5

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Operation Guide 3195

5

Exposure Level (Brightness)

Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting (500 lux)

Approximate

Exposure Time

5 minutes
24 minutes
48 minutes
8 hours

Charging Guide
The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.

• For details about the battery operating time and daily operating conditions, see the

“Power Supply” section of the Specifications.

• Stable operation is promoted by frequent exposure to light.

Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.

Approximate Exposure Time

Level 5

Level 4

Level 3

Level 2

Level 1

2 hours

20 hours

6 hours

8 hours

98 hours

27 hours

15 hours

200 hours

54 hours

170 hours

- - - - - - - -

- - - - - - - -

Exposure Level
(Brightness)

Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)

• The above exposure time values are all for reference only. Actual required exposure

times depend on lighting conditions.

Timekeeping

Use the Timekeeping Mode to set and view the current
time and date.

• In the Timekeeping Mode, press B to toggle between

the day of the week and date (Date screen), and the
currently selected World Time city and time (Dual Time).

Read This Before You Set the Time and Date!

This watch is preset with a number of city codes, each of
which represents the time zone where that city is located.
When setting the time, it is important that you first select
the correct city code for your Home City (the city where
you normally use the watch). If your location is not
included in the preset city codes, select the preset city
code that is in the same time zone as your location.

• Note that all of the times for the World Time Mode city

codes are displayed in accordance with the time and
date settings you configure in the Timekeeping Mode.

Date Screen

PM indicator

Hour : Minutes
Seconds

Day of week

Dual Time Screen

B

B

lll

l lll

ll

Dual
time

City
code

Month – Day

To set the time and date manually

1. In the Timekeeping Mode, hold down A until the city

code starts to flash, which indicates the setting screen.

2. Use D and B to select the city code you want.

• Make sure you select your Home City code before

changing any other setting.

• For full information on city codes, see the “City Code

Table”.

3. Press C to move the flashing in the sequence shown below to select the other

settings.

Seconds

12/24-Hour

Format

Hour

Minutes

DST

Month

Year

City Code

Day

Power Saving

Illumination

Duration

Button

Operation Tone

l l l

ll

ll

ll

ll

ll

l l

l l

4. When the timekeeping setting you want to change is flashing, use D or B to

change it as described below.

Change the city code

Cycle between Auto DST (

AvtA

), Daylight

Saving Time (

ON

) and Standard Time

(

OFF

).

Toggle between 12-hour (

) and 24-

hour (

) timekeeping

Reset the seconds to

Change the hour and minutes

Change the year, month, or day

Use D (east) and B
(west).
Press D.

Press D.

Press D.

Use D (+) and B (–).

Use D (+) and B (–).

Screen:

To do this:

Do this:

5. Press A to exit the setting screen.

• Auto DST (

AvtA

) can be selected only while LIS, LON, MAD, PAR, ROM, BER,

STO, ATH, MOW, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI,
NYC, YHZ, or YYT is selected as the Home City code. For more information, see
“Daylight Saving Time (DST)”.

• The day of the week is displayed automatically in accordance with the date (year,

month, and day) settings.

Toggle the button operation tone between

(on) and

(off)

Toggle the illumination duration between

(approximately 1.5 seconds) and
(approximately 3 seconds).

Toggle between Power Saving on (

) and

off (

)

Press D.

Press D.

Press D.

12-hour and 24-hour timekeeping

• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for

times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits for times in the range of midnight to 11:59 a.m.

• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without

any indicator.

• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is

applied in all other modes.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
The time calibration signals transmitted from Mainflingen (Germany), Anthorn
(England), or Fort Collins (the United States) include both Standard Time and DST
data. When the Auto DST setting is turned on, the watch switches between Standard
Time and DST (summer time) automatically in accordance with the signals.

• Though the time calibration signals transmitted by the Fukushima and Fukuoka/

Saga, Japan transmitters include summer time data, summer time currently is not
implemented in Japan (as of 2008).

• The default DST setting is Auto DST (

AvtA

) whenever you select LIS, LON, MAD,

PAR, ROM, BER, STO, ATH, MOW, TYO, ANC, YVR, LAX, YEA, DEN, MEX, CHI,
NYC, YHZ, or YYT as your Home City code.

• If you experience problems receiving the time calibration signal in your area, it

probably is best to switch between Standard Time and Daylight Saving Time
(summer time) manually.

To change the Daylight Saving Time (summer time) setting

1. In the Timekeeping Mode, hold down A until the city

code starts to flash, which indicates the setting screen.

2. Press C and the DST setting screen appears.
3. Use D to cycle through the DST settings in the

sequence shown below.

Auto DST (

A

vtA

)

DST off (OFF)

DST on (ON)

l ll

ll

ll

ll

ll

ll

l l l

l

ll

l l l ll

ll

l

DST indicator

• If you change your Home City to one that is within the same transmitter area, the

current DST setting (Auto DST) will be retained. If you change to a city that is
outside your current transmitter area, DST will be turned off automatically.

Transmitter
Japan
China
U.S.
Europe (U.K., Germany)
None

Covered City Codes
TPE
, SEL, TYO
HKG
, BJS
HNL
, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ, YYT
LIS
, LON, MAD, PAR, ROM, BER, STO, ATH, MOW
All other city codes

4. When the setting you want is selected, press A to exit the setting screen.

• The DST indicator appears to indicate that Daylight Saving Time is turned on.

Reference

This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.

Button Operation Tone

The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.

• Even if you turn off the button operation tone, alarms,

the Hourly Time Signal, and other beepers all operate
normally.

Mute indicator

To turn the button operation tone on and off

1. In the Timekeeping Mode, hold down A until the city code starts to flash, which

indicates the setting screen.

2. Press C nine times until the current button operation tone setting (

or MUTE)

appears.

3. Press D to toggle the setting between

(tone on) and MUTE (tone off).

4. Press A to exit the setting screen.

• The mute indicator is displayed in all modes when the button operation tone is

turned off.

Power Saving Function

When turned on, the Power Saving function enters a
sleep state automatically whenever the watch is left in an
area for a certain period where it is dark. The table below
shows how watch functions are affected by the Power
Saving function.

Elapsed Time

in Dark

60 to 70 minutes

6 or 7 days

Display

Blank, with Power Saving
indicator flashing
Blank, with Power Saving
indicator not flashing

Operation

All functions enabled, except for the
display
Auto receive, beeper tone,
illumination, and display are disabled.

• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.

Power saving indicator

• The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch

is already in the sleep state when 6:00 AM arrives, however, it will remain in the
sleep state.

To recover from the sleep state

Perform any one of the following operations.

• Move the watch to a well-lit area.

• Press any button.

• Angle the watch towards your face for reading.

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