Casio 5230 Using the World Time Mode, Using the Stopwatch, 24H, KEY, DST, DST, UTC, NYC, TYO, TYO, STW, SPL, SPL, MUTE, Note, Note, Stop, Stop, Stop, Note, Start, Start

Operation Guide 5230

3.When the timekeeping setting you want to change is flashing, use D and/or 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 (AUTO), Daylight
	Saving Time (ON) and Standard Time (OFF)
	Toggle between 12-hour (12H) and 24-hour	Press D.
	(24H) timekeeping
	Reset the seconds to 00
	Change the hour or minute	Use D (+) and B (–).
	Change the year, month, or day
	Toggle between button operation tone on
	(KEY ) and off (MUTE)	Press D.
	Toggle the illumination duration between
	three seconds (LT3) and 1.5 seconds (LT1)

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4.Press A to exit the setting mode.

ξThe watch automatically adjusts its analog setting to match the current time displayed in the left digital dial.

ξExiting a setting mode will normally cause the hands to return to regular timekeeping automatically. However, if you manually move the hands (page E-79) and then enter a setting mode, they will not return to regular timekeeping automatically when you exit the setting mode. In this case, you will need to return the hands to their normal positions manually (page E-80).

Note

ξFor information about selecting a Home City and confi guring the DST setting, see “Confi guring Home City Settings” (page E-42).

ξWhile 12-hour format is selected for timekeeping, a PM indicator will appear for times from noon to 11:59 p.m. No indicator appears for times from midnight to 11:59 a.m. With 24-hour format, time is displayed from 0:00 to 23:59, without any PM indicator.

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ξ 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

Using the World Time Mode

change it except after you have the watch’s rechargeable battery replaced or after

power drops to Level 5 (page E-15).

ξ The day of the week changes automatically when the date changes.

ξ Refer to the pages shown below for more information on Timekeeping Mode

settings.

− Button operation tone on/off: “To turn the button operation tone on and off”

(page E-81)

− Enabling and disabling power saving: “To turn Power Saving on and off” (page

E-83)

− The illumination duration: “To change the illumination duration” (page E-69)

Currently selected

World Time City

Current time in the currently selected World Time City

You can use the World Time Mode to view the current time in one of 31 time zones (48 cities) around the globe. The city that is currently selected in the World Time Mode is called the “World Time City”.

To enter the World Time Mode

Use C to select the World Time Mode as shown on page E-38.

ξThe right digital dial will show WT for about one second. After that, the city code and city name will scroll once across the right digital dial, and then the three-letter corresponding city code will be displayed.

To view the time in another time zone

In the World Time Mode, use D (East) to scroll through city codes.

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To specify standard time or daylight saving time (DST) for a city

1. In the World Time Mode, use D (East) and B (West)

DST indicator

to scroll through the city codes in the right digital dial until the one whose Standard Time/Daylight Saving Time setting you want to change is displayed.

2. Hold down A for about two seconds until the watch beeps.

ξ This toggles the city code you selected in step 1 between Daylight Saving Time (DST indicator displayed in the left digital dial) and standard time (DST indicator not displayed).

ξUsing the World Time Mode to change the DST setting of the city code that is selected as your Home City also will change the Timekeeping Mode time DST setting.

ξNote that you cannot switch between standard time/daylight saving time (DST) while UTC is selected as the World Time City.

ξThe standard time/daylight saving time (DST) setting affects only the currently selected time zone. Other time zones are not affected.

To swap your Home Time and World Time Cities

1.In the World Time Mode, use D to select the city you want to use as your new Home City.

2.To swap, hold down A and B at the same time until the watch beeps.

A and B

ξThis will make the World Time City you selected in step 1 (NYC (New York)) your new Home City.

ξYour previous Home City (TYO (Tokyo)) will be your new World Time City.

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Note

If you are using the watch in Japan, be sure to select TYO (Tokyo) as your Home City. Selecting another city code will make it impossible to receive the time calibration signal, which will cause the watch’s time setting to be off.

Using the Stopwatch

The stopwatch measures elapsed time, split times, and two finishes.

Minutes Seconds	To enter the Stopwatch Mode
	Use C to select the Stopwatch Mode (STW) as shown
	on page E-39.

1/100 second

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To perform an elapsed time operation
D	D	D	D	A
Start	Stop	(Restart)	(Stop)	Reset
To pause at a split time
D	A	A	D	A
Start	Split	Split release	Stop	Reset
	(SPL displayed)
To measure two finishes
D	A	D	A	A
Start	Split	Stop	Split release	Reset
	(SPL displayed)	Second runner	Display time of
	First runner fi nishes. fi nishes.		second runner.
	Display time of fi rst
	runner.

Note

ξThe Stopwatch Mode can indicate elapsed time up to 59 minutes, 59.99 seconds.

ξOnce started, stopwatch timing continues until you press D to stop it, even if you exit the Stopwatch Mode to another mode and even if timing reaches the stopwatch limit defi ned above.

ξExiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement.

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