Casio WV200A-1AV, WV200A1AV Timekeeping, Reference, Setting the Time and Date, Daylight Saving Time (DST), Auto Display, Button Operation Tone, Auto Return Features, Scrolling

Operation Guide 3140

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 City Code, the DST setting, the 12/24-Hour Format, Year, Month, Day, the Language setting, and the Month/Day display format.

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

Current Time and Date Screen		Last Signal Screen
Day of week		Receive date
Month – Day	Year
	Press .
PM indicator Home Time DST indicator		Receive time
(Hour : Minutes Seconds)

Note

•This watch is capable of displaying text for the day of the week in any one of nine different languages (English, Spanish, French, Portuguese, German, Italian, Chinese, Russian, and Japanese).

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

City code		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.
City	DST	12/24-Hour	Seconds	Hour	Minutes
Code		Format
Month/Day		Language	Day	Month	Year
Display Format

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:
	Change the city code			Use D (east) and
				B (west).
	Cycle between auto DST (		),
	Standard Time (	), and Daylight		Press D.
	Saving Time (	)
	Toggle between 12-hour (12H) and			Press D.
	24-hour (24H) timekeeping
	Reset the seconds to			Press D.
	Change the hour, minutes, or year			Use D (+) and B (–).
	Change the month or day
	Change the language
	ENG: English ESP: Spanish FRA: French
	POR: Portuguese DEU: German			Use D and B.
	ITA: Italian CHN: Chinese		: Russian
	JPN: JapaneseRussian
	Toggle the month/day display format between			Press D.
	month/day (M/D) and day/month (D/M).

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

•See the “Day of the Week List” for information on abbreviations used.

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

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 Fort Collins (the United States) or Anthorn (England) includes 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 received time signal.

•The default DST setting is Auto DST () whenever you select ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, YYT, LIS, LON, MAD, PAR, ROM, BER, STO, ATH, or MOW 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.

Auto Display

Auto Display continually changes the contents of the digital display.

To turn off Auto Display

Press any button to turn off Auto Display. This returns to the Timekeeping Mode.

To turn on Auto Display

In the Timekeeping Mode, while holding down B, hold down D for about two seconds until the watch beeps.

Note

•Calibration signal reception is disabled while Auto Display is being performed.

•Auto Display cannot be performed while a setting screen is on the display.

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, the alarm, Hourly Time Signal, and Countdown Timer Mode alarm all operate normally.

To turn the button operation tone on and off

MUTE indicator In any mode (except when a setting screen is on the display), hold down C to toggle the button operation tone on (MUTE not displayed) and off (MUTE 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.

Auto Return Features

•If you leave the watch with the Last Signal screen in the Timekeeping Mode for one or two minutes without performing any operation, it returns to the Current Time and Date screen in the Timekeeping Mode automatically.

•If you leave the watch in the Alarm Mode for two or three minutes without performing any operation, it returns to the Timekeeping Mode automatically.

•If you leave the watch with a flashing setting on the display for two or three minutes without performing any operation, the watch exits the setting screen automatically.

Scrolling

The B and D buttons are used in various modes and setting screens to scroll through data. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.

Initial Screens

•When you enter the World Time or Alarm Mode, the data you were viewing when you last exited the mode appears first.

Radio-controlled Atomic Timekeeping Precautions

•The display of the watch is blank while an auto receive operation is in progress.

•Strong electrostatic charge can result in the wrong time being set.

•The time calibration signal is bounced off the ionosphere. Because of this, such factors as changes in the reflectivity of the ionosphere, as well as movement of the ionosphere to higher altitudes due to seasonal atmospheric changes or the time of day may change the reception range of the signal and make reception temporarily impossible.

•Even if the time calibration signal is received properly, certain conditions can cause the time setting to be off by up to one second.

•The current time setting in accordance with the time calibration signal takes priority over any time settings you make.

•The watch is designed to update the date and day of the week automatically for the period January 1, 2000 to December 31, 2099. Setting of the date by a time calibration signal cannot be performed starting from January 1, 2100.

•This watch can receive signals that differentiate between leap years and non-leap years.

•Though this watch is designed to receive both time data (hour, minutes, seconds) and date data (year, month, day), certain signal conditions can limit reception to time data only.

•Normally, the signal reception date shown by the Last Signal screen is the date data included in the received time calibration signal. When only time data is received, however, the Last Signal screen shows the date as kept in the Timekeeping Mode at the time of signal reception.

•If you are in an area where proper time calibration signal reception is impossible, the watch keeps time with the precision noted in “Specifications”.

•If you have problems with proper time calibration signal reception or if the time setting is wrong after signal reception, check your current city code, DST (summer time), and auto receive settings. The following are the initial factory defaults for these settings.

Setting	Initial Factory Default
City code			(New York)
DST (summer time)			(Auto switching)
Auto receive		(Auto receive)

Timekeeping

•Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are reset to 00 without changing the minutes.

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

•The year can be set in the range of 2000 to 2099.

•The watch’s built-in full automatic calendar makes allowances for different month lengths and leap years. Once you set the date, there should be no reason to change it except after you have the watch’s battery replaced.

•The times for the Timekeeping Mode and all the city codes of the World Time Mode are calculated in accordance with each city’s UTC offset.

•The UTC offset is a value that indicates the time difference between a reference point in Greenwich, England and the time zone where a city is located.

•The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is the world-wide scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap

seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s	4
rotation.