Casio 5235 Function and Button Operation Guide, Configuring Home City Settings, Configuring Current Time and Date Settings Manually, STD/DST Switching

Operation Guide 5235 (OC)

To check the result of the latest receive operation

Press B.

ξThe x Second Hand will move to YES (Y) if the latest receive operation

was successful, or NO (N) if it was not. After about ten seconds, regular timekeeping will resume.

	ξ You can return to regular timekeeping manually by pressing Bwhile the
	x Second Hand is pointing to YES (Y) or NO (N).
	Note
	ξ The x Second Hand will indicate NO (N) if you have adjusted the time or
	date setting manually since the latest receive operation.
To turn auto receive on and off

NO (N)	1.	Press B.
	2.	Pull out the crown.
		ξ The x Second Hand will perform one full revolution and then stop at either
		YES (Y) or NO (N) to indicate the current on/off setting.
	3.	Rotate the crown to move the x Second Hand to the setting you want.
		ξ To turn on auto receive, select YES (Y).
		ξ To turn off auto receive, select NO (N).

4. Push the crown back in to return to regular timekeeping.

Radio-controlled Atomic Timekeeping Precautions

ξStrong electrostatic charge can result in the wrong time setting.

ξEven if a receive operation is successful, certain conditions can cause the time setting to be off by up to one second.

ξThe watch is designed to update the date automatically for the period from January 1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed starting from January 1, 2100.

ξIf you are in an area where signal reception is not possible, the watch keeps time with the precision noted in “Specifications” (page E-34).

ξThe receive operation is disabled under any of the following conditions.

−While power is at Level 2 or lower (page E-8)

−While the watch is in the power recovery mode (page E-9)

−While the watch is in the function sleep state (power saving, page E-10)

YES (Y)
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Function and Button Operation Guide Configuring Home City Settings

Your watch can perform the following functions and button operations.

Functions: See:

The Home City is location where you will normally use the watch. You can choose from a selection of city codes that represent 29 cities around the globe.

ξView the current time in your Home City and in one of 29 other cities around the globe

ξView the current date in the Home City

ξ Configure Home City and daylight saving time (DST) settings E-19

ξPerform a time calibration signal receive operation

ξConfigure time and date settings manually

ξTo check the last receive result, press Bonce (page E-16).

ξTo perform manual receive, hold down Bfor at least two seconds (page E-15).

ξTo toggle between standard time and summer time, press A(page E-21).



TOKYO (TYO)



To configure Home City settings

Note

ξThis watch does not have a city code that corresponds to Newfoundland.

1.Pull out the crown.

ξThis will cause the x Second Hand to move to the city code of the currently selected Home City.

ξThis indicates the city code setting mode.

ξIf you do not perform any operation with the crown for about two minutes after pulling it out, crown operations will become disabled and the hand will not move if you rotate the crown. If this happens, push the crown back in and then pull it out again.

ξFor details about city codes, see the “City Code Table” at the back of this manual.

2.Rotate the crown to move the x Second Hand to the city code you want to

select as your Home City.

ξ Each time you select a city code, the z Hour Hand, c Minute Hand and v Day Indicator move to the current time and date for that city code.

3.Push the crown back in to return to regular timekeeping.

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E-19

STD/DST Switching

You can select summer time or standard time independently for each city. The initial default setting for all cities is AUTO.

Normally you should use the AUTO setting because it automatically switches between summer time and standard time. You should change the setting to STD (standard time) or DST (summer time) in the following cases.

−When using the watch in a city not included in the City Code Table

−When the switching dates in your location are different from those shown in the City Code Table

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.

ξNote that the x Second Hand always points to AUTO while UTC* is selected as your Home City.

*Coordinated Universal Time, the world-wide scientific standard of timekeeping. The reference point for UTC is Greenwich, England.

To switch between standard time and summer time manually

Switching between AUTO and STD (or DST)

A1 sec

 

1.Perform steps 1 and 2 under ÒTo conÞ gure Home City settingsÓ (page E-19).

ξSelecting a city code will cause the z Hour Hand, c Minute Hand and v Day Indicator to move automatically to the current time for the selected city code.

ξIf you will use the watch in a city that is not included in the city code list, select a city code that is in the same time zone as your city.

2.Press A.

ξEntering the Home City setting mode will cause the x Second Hand to move to AUTO (auto switching), STD (standard time manual setting), or DST (summer time manual setting).

−If STD or DST is indicated, go directly to step 4 of this procedure.

−If AUTO is indicated, proceed to step 3.

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Switching between STD and DST

Configuring Current Time and Date Settings Manually

You can conÞ gure current time and date settings manually when the watch is unable to receive a time calibration signal.

A

 

3.Hold down Afor about one second until the x Second Hand moves to MNL (manual), and then moves to STD or DST.

−If STD is indicated, the watch will always show standard time.

−If DST is indicated, the watch will always show summer time.

ξIf you do not perform any operation for about two more seconds, the x Second Hand will return to the Home City code. Perform step 4 below while the x Second Hand is indicating STD or DST.

4.Press Ato move the x Second Hand between STD and DST.

ξTo switch from STD or DST to AUTO, hold down Afor about one second.

5.After the setting is way you want, push the crown back in.



TOKYO (TYO)



To change the current time setting manually

1.Pull out the crown.

ξThis will cause the x Second Hand to move to the city code of the currently selected Home City.

ξIf you do not perform any operation with the crown for about two minutes after pulling it out, crown operations will become disabled and the hand will not move if you rotate the crown. If this happens, push the crown back in and then pull it out again.

2.Change the Home City setting, if you want.

ξTo change the Home City setting, perform step 2 under “To configure Home City Settings” (page E-19).

3.Hold down Bfor about two seconds. This will enter the time setting mode.

ξThe x Second Hand will indicate whether the current time is a.m. (by moving to second 57) or p.m. (by moving to second 03).

ξIn the following steps, each press of Bcycles between settings as shown below.

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