Casio 3061 Timekeeping, Reference, Charging Guide, Setting the Time and Date, Daylight Saving Time (DST), Button Operation Tone, Power Saving Function

Operation Guide 3050 3061

Charging Guide

After a full charge, timekeeping remains enabled for up to about 9 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
Daylight Through a Window on a Cloudy Day	48 minutes
(5,000 lux)
Indoor Fluorescent Lighting (500 lux)	8 hours

•Since these are the specs, we can include all the technical details.

•Display on 18 hours per day, sleep state 6 hours per day

•1 illumination operation (1.5 seconds) per day

•10 seconds of alarm operation per day

•10 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)
Sunlight Through a Window			6 hours				126 hours		35 hours
(10,000 lux)
Daylight Through a Window			11 hours				256 hours		71 hours
on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting		120 hours					– – –
(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.

•When setting the time, you can also configure settings for the 12/24-hour format, and power saving on/off, and you can specify the screens that are displayed in the Timekeeping Mode.

•In the Timekeeping Mode, you can press B to toggle the display contents as shown below.

Date		Day of the Week
Module 3050 (A)
PM indicator
	Press B.
	▲	▲
Hour : Minutes	Month – Day	Day of week
Module 3061
Month – Day
	Press B.
	▲	▲
PM indicator	Hour : Minutes Seconds	Day of week

•Pressing D in the Timekeeping Mode will display the Last Signal screen.

Module 3050 (A)

▲	Press D.
	▲
Module 3061
▲	Press D.
	▲

Setting the Time and Date

Make sure you select your Home City code before you change the current time and date settings. World Time Mode times are all displayed in accordance with the Timekeeping Mode settings. Because of this, World Time Mode times will not be correct if you do not select the proper Home City code before setting the time and date in the Timekeeping Mode.

To set the time and date

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

2. Press C to change the flashing contents in the sequence shown below to select other settings.

l	l	l	l
l			l
l	l	l	l
City code
City Code			DST	12/24-Hour	Seconds	Hour
				Format
Power			Day	Month	Year	Minutes
Saving

3.When the setting you want to change is flashing, use B and/or D to change it as described below.

Screen:	To do this:				Do this:
TYO	Change the city code				Use D (east) and B (west).
	Cycle between auto DST (			),	Press D.
	Standard Time (		), and
	Daylight Saving Time (			)
	Toggle between 12-hour (12H) and				Press D.
	24-hour (24H) timekeeping
	Reset the seconds to				Press D.
	Change the hour or minutes				Use D (+) and B (–).
	Change the year, month, or day
	Toggle Power Saving on (			) and	Press D.
	off (	)

•See “City Code Table” for a complete list of available city codes.

•Auto DST () can be selected only while LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below.

•For information about settings other than the time and date, see the following. Power Saving: Power Saving Function

4.Press A to exit the setting screen.

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), Rugby (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.

•The time calibration signals transmitted from Fukushima and Fukuoka/Saga (Japan) do not include summer time data.

•The default DST setting is Auto DST () whenever you select LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, 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 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 ( ) DST off ( ) DST on ( )

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

Module 3050 (A)	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, the alarm,
	Hourly Time Signal, and Countdown Timer Mode alarm
MUTE indicator	all operate normally.
	To turn the button operation tone on and off
Module 3061
	In any mode (except when a setting screen is on the
	display), hold down C to toggle the button operation tone
	on (MUTE indicator not displayed) and off (MUTE
	indicator displayed).

•Since the C button is also the mode change button, holding it down to turn the button operation tone on or off also causes the watch’s current mode to change.

•The MUTE indicator is displayed in all modes when the button operation tone is turned off.

Power Saving Function

Module 3050 (A)	When turned on, the Power Saving function enters a sleep
	state automatically whenever the watch is left in an area
	where it is dark for a certain period. The table below
	shows how watch functions are affected by the Power
	Saving function.
Power saving indicator
Module 3061

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