Casio GW6900-1V, GW69001V Timekeeping, Reference, l l, LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ, YYT, LIS, LON, MAD

Operation Guide 3179

Timekeeping

Current Time

Day of week	Month – Day
Hour : Minutes
Seconds
PM indicator
B ▲	B
▲

Dual Time

Press the Bbutton to toggle the lower display between the day of the week and date, and the currently selected World Time city and time (Dual Time).

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

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.

To change the Daylight Saving Time (summer time) setting

					1. In the Timekeeping Mode, hold down Auntil the city
					code starts to flash, which indicates the setting screen.
ll l ll					2. Press Cand the DST setting screen appears.
					3. Use Dto cycle through the DST settings in the
ll				l
			l l	l	sequence shown below.
	ll
l		ll
ll			l		Auto DST (AvtA) DST off (OFF) DST on (ON)
ll lll
			DST indicator

•If you change your Home City to one that is within the same transmitter area, the current DST setting will be retained. If you change to a city that is outside your current transmitter area, DST will be turned off automatically.

Transmitter	Covered City Codes
Japan	TPE, SEL, TYO
China	HKG, BJS

City code			Dual time
To set the time and date manually
			1. In the Timekeeping Mode hold down Auntil the city
			code starts to flash, which indicates the setting screen.
l l l l			2. Use Dand Bto select the city code you want.
			• Make sure you select your Home City code before
ll		l
l		l	changing any other setting.
	l l l	l
			• 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 setting.

City Code	DST		12/24-Hour			Seconds		Hour		Minutes
				Format
Power Saving		Illumination			Button		Day		Month		Year
		Duration			Operation Tone

• The following steps explain how to configure timekeeping settings only.

4.When the timekeeping setting you want to change is flashing, use Dor B to change it as described below.

Screen:	To do this:				Do this:
	Change the city code				Use D (east) and B
					(west).
	Cycle between Auto DST (AvtA), Daylight				Press D.
	Saving Time (ON) and Standard Time
	(OFF).
	Toggle between 12-hour (			) and 24-	Press D.
	hour (	) timekeeping
	Reset the seconds to				Press D.
	Change the hour and minutes				Use D (+) and B (–).
	Change the year, month, or day				Use D (+) and B (–).
/	Toggle the button operation tone between				Press D.
	(on) and		(off)
	Toggle the illumination duration between				Press D.
	(approximately 1.5 seconds) and
	(approximately 3 seconds).

Toggle between Power Saving on () and Press D. off ()

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)” below.

•The day of the week is displayed automatically in accordance with the date (year, month, and day) settings.

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 signal 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.

U.S.	HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ, YYT
Europe (U.K., Germany) LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW
None	All other city codes

4. When the setting you want is selected, press Ato 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.

Graphic Area

The information shown in the graphic area depends on the current mode.

Graphic Area	Mode	Graphic Area
	Timekeeping Mode	Timekeeping Mode seconds
	World Time Mode	Timekeeping Mode seconds
	Alarm Mode	No indication
	Stopwatch Mode	Stopwatch Mode 1/10 seconds
	CountdownTimer Mode	CountdownTimer Mode seconds

Button Operation Tone

Mute indicator	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.

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 Cnine times until the current button operation

tone setting (		or	) appears.
3. Press Dto toggle the setting between				(tone on)
and	(tone off).
4. Press Ato 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

Power saving indicator		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		Display	Operation
in Dark
60 to 70 minutes	Blank, with Power Saving		All functions enabled, except for the
	indicator flashing		display
6 or 7 days	Blank, with Power Saving		Auto receive, beeper tone,
	indicator not flashing		illumination, and display are disabled.

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

•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.

To turn Power Saving on and off

llll					1. In the Timekeeping Mode, hold down Auntil the city
					code starts to flash, which indicates the setting screen.
ll		l
l		l			2. Press C 11 times until the Power Saving on/off screen
l ll
		l	l	l l	appears.
					3. Press D to toggle Power Saving on ( ) and off (	).
	l			l
	l			l
	l			l	4. Press A to exit the setting screen.
l
	l			l	• The Power Saving indicator is on the display in all
		ll	l ll
On/Off status					modes while Power Saving is turned on.

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