Casio 3150, MO0805-EA Timekeeping, Read This Before You Set the Time and Date, 12-hourand 24-hourtimekeeping, Daylight Saving Time (DST), To set the time and date manually

Operation Guide 3150

Charging Guide

After a full charge, timekeeping remains enabled for up to about seven months.

•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.

Exposure Level (Brightness)	Approximate
	Exposure Time
Outdoor Sunlight (50,000 lux)	5 minutes
Sunlight Through a Window (10,000 lux)	24 minutes

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

12/24-Hour

City Code DST Seconds Hour

Format

Power Saving Day Month Year Minutes

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

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

Daylight Through a Window on a Cloudy Day (5,000 lux)	48 minutes
Indoor Fluorescent Lighting (500 lux)	8 hours

•Since these are the specs, we can include all the technical details.•Watch not exposed to light•Internal timekeeping•Display on 18 hours per day, sleep state 6 hours per day•1 illumination operation(1.5 second) per day•10 seconds of alarm operation per day•Measurement of 26 Rally Mode stages per month•4 minutes of signal reception per day•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.

Exposure Level	Approximate Exposure Time
(Brightness)	Level 5	Level 4	Level 3		Level 2		Level 1
				▲		▲		▲
Outdoor Sunlight		2 hours			25 hours		7 hours
(50,000 lux)

Screen:	To do this:
	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 Toggle the display illumination duration between 1.5 and 3 secondsChange the hour and minutes

Change the year, month, or day

Toggle between Power Savingon () and off ()

Do this:

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

Press D.

Press D.

Press B.Use D (+) and B (–).

Press D.

Sunlight Through a	6 hours	123 hours	34 hours
Window (10,000 lux)
Daylight Through a	11 hours	249 hours	69 hours
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent	111 hours	- - - - - - - -	- - - - - - - -
Lighting (500 lux)

•The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.

Timekeeping

Current Time		Press the B button to toggle the lower display
PM indicator	Seconds	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.
Day of week
Hour : Minutes	Month – Day
Seconds ▲
B	B
	▲

Dual Time

City code 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.

To set the time and date manually

			1. In the Timekeeping Mode hold down Auntil
			the city code starts to flash, which indicates
lll l llll			the setting screen.
			2. Use D and B to select the city code you
l		l	want.
l
		l
l	ll l l	l
			• Make sure you select your Home City code

before changing any other setting.

• For full information on city codes, see the “UTC Differential/City Code List”.

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, MIA, YTO, 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 2007).

•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, MIA, YTO, 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
l l l			l	the setting screen.
			l
l		ll	l ll	2. Press Cand the DST setting screen appears.
			l l
l		l	lll	3. Use Dto cycle through the DST settings in
l
l		l
	l l l			the sequence shown below.
	DST indicator			Auto DST (AvtA) DST off (OFF) DST on (ON)

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