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Operation Guide 5184
E-10
Timekeeping
You can adjust the Home Time city data and time in the Timekeeping Mode. You also
can simultaneously display the current time in one other time zone, by specifying a
Dual Time City.
• For information about selecting a Dual Time City, see “To specify the Dual Time City”
(page E-17).
• Pressing D in the Timekeeping Mode will cycle the lower display between the
screens shown below.
D
▲
▲
D
Home City Date Home City Time Dual Time
▲
D
Month – Day
Day of week
Seconds
Right dial hand
(World Time)
PM indicator
Hour : Minutes
Dual Time
City code
Dual Time
(Hour :
Minutes)
E-11
Read This Before You Set the Time and Date!
This watch is preset with a number of city codes, each of which represents the time
zone where that city is located. When setting the time, it is important that you first
select the correct city code for your Home City (the city where you normally use the
watch). If your location is not included in the preset city codes, select the preset city
code that is in the same time zone as your location.
• Note that all of the times for the World Time City codes (page E-18) and Dual Time
City are displayed in accordance with the time and date settings you configure for
the Timekeeping Mode.
To set the time and date
1.In the Timekeeping Mode, hold down A for about five
seconds until the left dial hand points to T1 and the city
code flashes on the upper display. This is the setting
mode.
2.Use D and B to select the city code you want.
• Make sure you select your Home City code before
changing any other setting.
• For full information on city codes, see the “City Code
Table” at the back of this manual.
City code
E-12
3. Press C to change the flashing screen content in the sequence shown below to
select the other setting.
Seconds
12/24-Hour
Format
Hour
Minutes
DST
Month
Year
City Code
DayPower Saving
4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Change the city code
Toggle between Daylight Saving Time
(
) and Standard Time ( ).
Use D (east) and B
(west).
PressD.
Screen:
To do this: Do this:
E-13
5. Press A twice to exit the setting mode.
• For details about the Daylight Saving Time setting, see “To change the Daylight
Saving Time (summer time) setting” (page E-15). For information about Power
Saving, see “To turn Power Saving on and off” (page E-50).
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
Screen: To do this: Do this:
Toggle between 12-hour (
) and
24-hour ( ) timekeeping
Reset the seconds to
Change the hour and minutes
Change the year, month, or day
Toggle between Power Saving on
( ) and off (
)
PressD.
PressD.
Use D (+) and B (–).
PressD.
E-14
12-hour and 24-hour timekeeping
• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears for times in the
range of midnight to 11:59 a.m.
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
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.
E-15
To change the Daylight Saving Time (summer time) setting
1.In the Timekeeping Mode, hold down A for about five
seconds until the left dial hand points to T1 and the city
code flashes on the upper display. This is the setting
mode.
2.Press C. This will display the DST setting screen.
3.Press D to toggle between Daylight Saving Time (ON
displayed) and Standard Time (OFF displayed).
4.When the setting you want is selected, press A twice
to exit the setting mode.
• The DST indicator appears to indicate that Daylight
Saving Time is turned on.
DST indicator
E-16
Dual Time
Dual Time lets you display the current time in another time zone called your “Dual
Time City”, in addition your Home City’s current time. This feature is very handy for
business professionals and others who need to keep track of the current time in two
different time zones.
• For information about how to display the current time in the Dual Time City in the
lower display, see page E-10.
• You can change the Dual Time DST (summer time) setting in the World Time Mode.
E-17
To specify the Dual Time City
1.In the Timekeeping Mode, hold down A for about five
seconds until the left dial hand points to T1 and the city
code flashes on the upper display. This is the setting
mode.
2.Press A again. The left dial hand will move to T2 and
the current Dual Time City code will start to flash on the
upper display. This is the Dual Time City selection
screen.
3.Use D (eastward) and B (westward) to scroll through
the available city codes.
• See the “City Code Table” at the back of this manual
for information about city codes.
4.Press A to exit the setting mode.
Left dial hand
E-18
World Time
World Time digitally displays the current time in one of
48 cities (29 time zones) around the world. A simple
operation swaps your Home City with the currently
selected World Time City.
• The times kept in the World Time Mode are
synchronized with the time being kept in the
Timekeeping Mode. If you feel that there is an error in
any World Time Mode time, check to make sure you
have the correct city selected as your Home City. Also
check to make sure that the current time as shown in
the Timekeeping Mode is correct.
• Times in the World Time Mode are based on UTC
offsets. See the “City Code Table” at the back of this
manual for information about the UTC offsets that are
supported.
• All of the operations in this section are performed in the World Time Mode, which
you enter by pressing C (page E-9).
Currently selected
World Time City
Current time in
World Time City
Right dial hand
(World Time hour)
E-19
Right Dial Hand
The right dial hand shows the current hour in the World Time City in all modes.
• The right dial hand moves just like the normal hour hand, completing one revolution
every 12 hours.