World Time Mode - Casio 2839 Operation Manual

Auto receive is turned on, but the receive icon is not on the
display.
• The receive icon appears when a signal is received successfully
and the time is updated. It is not displayed if there is no
successful signal reception throughout the day. Also note that the
icon disappears from the display each day at 3:00 a.m. Make sure
that you are using the watch in an area that is within the reception
range of a transmitter, and make sure that the watch is in the
Timekeeping Mode or World Time Mode when it is time for auto
signal reception.
The current auto receive on (ON)/off (OFF) setting does not
appear on the setting screen.
• The auto receive on/off setting is not displayed unless TYO
(Japan), NYC (New York), CHI (Chicago), DEN (Denver), or LAX
(Los Angeles) is selected as the Home City. Select the correct
Home City code using the procedure under "Selecting Your Home
City".
The AUTO, 40, and 60 options do not appear for the transmitter
selection mode setting.
• The AUTO, 40, and 60 transmitter selection mode options are
available only when TYO (Tokyo) is selected as the Home City
code. Select the correct Home City code using the procedure
under "Selecting Your Home City".
Turning Summer Time (Daylight
Saving Time) On and Off
You can turn summer time on or off individually for each World
Time city.
1.
In the World Time Mode,
D D D (+) and B B B B (–)
use the D D B
buttons to scroll through
the city codes until the
one you want is displayed.
• Holding down either button (Forward)
scrolls at high speed.
2.
While the city code you
want is displayed, hold
A A
down the A A A button for
about one second to turn
summer time on (DST
indicator displayed) or off
(DST indicator not
DST indicator
displayed).
• The watch beeps whenever
you change the summer time
setting.
A A A A A Button
• Hold down to toggle
summer time (Daylight
Saving Time) on and off.
Operation Guide 2839
What time is auto receive performed?
• Auto receive is performed in the middle of the night, when
reception conditions are best. Before going to bed at night, place
the watch near a window, with its 12 o'clock position facing in the
general direction of the transmitter.
How can I perform manual receive?
• Hold down the lower right D button for about two seconds. The
watch will beep to indicate that manual receive has started. Place
it near a window, with its 12 o'clock position facing in the general
direction of the transmitter.
How can I view the last reception date and time?
• In the Timekeeping Mode, press the lower right D button. This
will display the date and time that the time calibration signal was
last received successfully. To return to the Timekeeping Mode,
press the D button again.
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.
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World Time Mode

World Time lets you display the current time in any one of 30 cities (29 time zones) around the world.
When you enter the World Time Mode, the screen for the city that
was displayed when you last exited the mode appears first.
Timekeeping Mode
Time in Home City
City Code
(Once)
Time in World Time City
• After you set the current time for the Home City in the
Timekeeping Mode, the World Time Mode calculates the current
time in other cities around the world using the GMT differential for
each time zone.
• The seconds count in the World Time Mode is linked with the
Timekeeping Mode seconds count.
If a World Time Mode time is incorrect, check the time setting
and time zone setting of the Timekeeping Mode, and correct
them if necessary.
• See "Selecting Your Home City" for information about
selecting your Home City.
World Time City Code List
City Code City Name GMT Differential
– – – –11
HNL Honolulu –10
ANC Anchorage –9
LAX Los Angeles –8
DEN Denver –7
CHI Chicago –6
NYC New York –5
CCS Caracas –4
Rio de Janeiro –3
RIO
– – – –2
– – – –1
Greenwich Mean Time +0
GMT
LON London +0
PAR Paris +1
BER Berlin +1
ATH Athens +2
CAI Cairo +2
• The contents of the above table are current as of June 2003.
• Time differentials in the above table are in accordance with Universal Time Coordinated (UTC).
City Code Search
In the World Time Mode, use
the D D D D D (+) and B B B B B (–) buttons
to scroll through city codes.
• Holding either button scrolls at
high speed.
(Forward)
• See the "World Time City Code
List" for information about the
display sequence of the city
codes.
B B B Button
B B
• Scrolls back through city
codes.
D D D Button
D D
• Scrolls forward through city
codes.
City Code City Name GMT Differential
JRS Jerusalem +2
JED Jeddah +3
THR Teheran +3.5
DXB Dubai +4
KBL Kabul +4.5
KHI Karachi +5
DEL Delhi +5.5
DAC Dakar +6
Yangon +6.5
RGN
BKK Bangkok +7
HKG Hong Kong +8
Seoul +9
SEL
TYO Tokyo +9
ADL Adelaide +9.5
SYD Sydney +10
NOU Noumea +11
WLG Wellington +12
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