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Using world time, Operation guide 4343, Home city beep indicator – Casio 4343 User Manual

Page 5: Changing the home city setting, World time city code list, When summer time is turned on

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Operation Guide 4343

5

World Time lets you display the current time in any one of 27 cities
(29 time zones) around the world.

Press the D

D

D

D

D button to enter the World Time Mode.

• If you are entering from the Chronograph Mode, the chronograph

must be reset first. See “Chronograph Reset” for more
information.

30

Time City Code Zone
(Hour, Minute)

World Time Mode

Currently Selected City Code

Indicator Hand

Important!

If the current time shown of the selected city code is not correct,
check the current time setting of your Home Time and make
adjustments as necessary.
• For information about configuring home time settings, see

“Changing the Home City Setting”.

Press the B

B

B

B

B button to return to the Timekeeping Mode.

To search for a city

In the World Time Mode, press
the
D

D

D

D

D button to move the

indicator hand (which is
pointing at the currently
selected city code) clockwise.

• About one second after you

release the D button, the hands
of the watch will move to the
current time in the zone of the
indicated city code.

Home City beep indicator

If the city code that the indicator hand moves to when you press the
D button is your currently selected Home City, the watch will beep.

30

(Indicates zone)

(Clockwise)

Current time in the zone
where the currently
selected city code is
located (24-hour format;
hour, minute)

To turn summer time on or off

1.

In the World Time Mode, use the D

D

D

D

D button to select the

city code whose summer time setting you want to
change.

2.

Hold down the A

A

A

A

A button for about five seconds to

toggle summer time on or off.

• You can turn summer time on or off individually for each World

Time city. Note, however, that you cannot change the summer
time setting for the “GMT” (Greenwich Mean Time) zone.

30

30

(5 seconds)

OFF

ON

Summer time, or Daylight Saving Time (DST) as is it is called
in some countries, calls for setting clocks ahead one hour
during the summer season. Note that the use of summer time
depends on the country and even the local area.

Changing the Home City Setting

Use the World Time Mode to specify your Home City.

Example: To change the Home City setting from New York

(NYC) to Tokyo (TYO)

1.

In the World Time Mode,
use the
D

D

D

D

D button to select

the city code you want to
use as your new Home
City.

2.

Hold down the A

A

A

A

A button

as you press the D

D

D

D

D

button to swap your
current Home City with the
World Time City you
selected in step 1.

• The watch will beep and make

the currently selected World
Time City your new Home
City.

• Your previous Home City will

become your new World Time
City, and the indicator hand
will move to its city code.

30

TYO Selected

Current Time in
Selected City

30

Indicator Hand Movement

World Time City Code List

City

Code

City Name

GMT

LON

PAR

ATH

JED

THR

DXB

KBL

KHI

DEL

DAC

RGN

BKK

HKG

TYO

Greenwich Mean Time

London

Paris

Athens

Jeddah

Teheran

Dubai

Kabul

Karachi

Delhi

Dhaka

Yangon

Bangkok

Hong Kong

Tokyo

+0.0

+0.0

+1.0

+2.0

+3.0

+3.5

+4.0

+4.5

+5.0

+5.5

+6.0

+6.5

+7.0

+8.0

+9.0

ADL

SYD

NOU

WLG

PPG

HNL

ANC

LAX

DEN

CHI

NYC

CCS

RIO

–2.0

–1.0

*

Adelaide

Sydney

Noumea

Wellington

Pago Pago

Honolulu

Anchorage

Los Angeles

Denver

Chicago

New York

Caracas

Rio de Janeiro

+9.5

+10.0

+11.0

+12.0

–11.0

–10.0

–9.0

–8.0

–7.0

–6.0

–5.0

–4.0

–3.0

GMT
Differ-
ential

City

Code

City Name

GMT
Differ-
ential

• Based on data as of June 2007.
• The rules governing global times (GMT differential and UTC

offset) and summer time are determined by each individual
country.

*

In December 2007, Venezuela changed its offset from –4.0 to
–4.5. Note, however, that this watch displays an offset of –4.0 (the
old offset) for the CCS (Caracas, Venezuela) city code.

Using World Time

To check the current summer time on/

off setting

In the World Time Mode, press
the
A

A

A

A

A button.

• The second hand moves to “0”

when summer time is turned on,
and to “5” (between “4” and “6”)
when summer time is turned off.

• The second hand will resume

normal operation after about five
seconds.

When summer time is turned on

• When you turn on summer time for a city code that supports time

calibration signal reception, the watch will decide automatically
whether or not to apply the summer time or standard time setting
in accordance with the received signal.

• In the case of a city code that does not support signal reception,

turning on summer time advances the current time setting by one
hour.

• City codes that support signal reception are TYO, HKG, HNL,

ANC, LAX DEN, CHI, and NYC.
• Signal reception is possible in Hong Kong (HKG), Honolulu

(HNL), and Anchorage (ANC) when reception conditions are
good.

• To select summer time manually for a city code that supports

signal reception, turn off summer time for the city code and
then select a city code in the neighboring time zone that will
advance the time by one hour.

30

Off

Important!

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 your time setting to be off.