Operation Guide 3465
E-19
Countdown Timer
The countdown timer can be set within a range of
one minute to 24 hours. An alarm sounds when the
countdown reaches zero.
x
The countdown operation continues even if you exit the
Countdown Timer Mode.
x
All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C
(page E-7).
To use the countdown timer
Press
D
while in the Countdown Timer Mode to start the countdown timer.
x
When the end of the countdown is reached, the alarm sounds for 10 seconds or
until you stop it by pressing any button. The countdown time is automatically reset
to its starting value after the alarm stops.
Minutes
Hours
Seconds
E-18
To measure times with the stopwatch
Elapsed Time
D
D
D
D
A
Start
Stop
Resume
Stop
Reset
Split Time
D
A
A
D
A
Start
Split
(
SPL
displayed)
Split release
Stop
Reset
Two Finishes
D
A
D
A
A
Start
Split
First runner
finishes.
Display time of
first runner.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Reset
E-17
Stopwatch
The stopwatch lets you measure elapsed time, split
times, and two finishes.
x
The display range of the stopwatch is 59 minutes,
59.99 seconds.
x
The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
x
The stopwatch measurement operation continues even if
you exit the Stopwatch Mode.
x
Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
elapsed time measurement.
x
All of the operations in this section are performed in the Stopwatch Mode, which
you enter by pressing
C
(page E-7).
Seconds
Minutes
1/100 seconds
E-16
Note
x
The seconds count of the World Time is synchronized with the seconds count of
the Timekeeping Mode.
x
All World Time Mode times are calculated from the current Home City time in the
Timekeeping Mode using UTC time differential values.
x
The UTC differential is a value that indicates the time difference between a
reference point in Greenwich, England and the time zone where a city is located.
x
The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is the
world-wide scientific standard of timekeeping. It is based upon carefully maintained
atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the
Earth’s rotation.
E-15
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use
D
to display the city
code (time zone) whose Standard Time/Daylight Saving
Time setting you want to change.
2. Hold down
A
for about one second to toggle between
Daylight Saving Time (DST indicator displayed) and
Standard Time (DST indicator not displayed).
x
The DST indicator is on the display whenever you display
a city code for which Daylight Saving Time is turned on.
x
Note that the DST/Standard Time setting affects only
the currently displayed city code. Other city codes are
not affected.
x
In the World Time Mode, you can switch the city code you currently have selected
as your Timekeeping Mode Home City between Standard Time and DST. The
setting you select in the World Time Mode will also be applied in the Timekeeping
Mode.
DST indicator
E-14
World Time
World Time shows the current time in 48 cities (29 time
zones) around the world.
x
All of the operations in this section are performed in
the World Time Mode, which you enter by pressing
C
(page E-6).
To view the time in another city code
In the World Time Mode, press
D
to scroll through the
available city codes. Holding down the button scrolls at
high speed.
x
For full information about city codes, see the “City Code
Table” at the back of this manual.
x
If the current time shown for a city is wrong, check your
Timekeeping Mode time and Home City code settings
and make the necessary changes.
City code
Current time in the zone of
the selected city code
E-13
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.
To toggle the Timekeeping Mode time between DST and Standard Time
1. In the Timekeeping Mode, hold down
A
until the
seconds start to flash, which indicates the setting
screen.
2. Press
C
twice to display the DST setting screen.
3. Press
D
to toggle between Daylight Saving Time (
On
)
and Standard Time (
OF
).
4. Press
A
to exit the setting screen.
x
The
DST
indicator is displayed on the Timekeeping
Mode and Alarm Mode screen while Daylight Saving
Time is turned on.
DST indicator
On/Off status
E-12
4. Press
A
to exit the setting screen.
x
Resetting the seconds to
00
while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to
00
without changing the minutes.
x
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 to the left of
the hour digits for times in the range of midnight to 11:59 a.m.
x
With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
x
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
x
The year can be set in the range of 2000 to 2099.
x
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
change it except after you have the watch’s battery replaced.
x
The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
E-11
3. When the setting you want to change is flashing, use
D
and
B
to change it as
described below.
Screen
To do this:
Do this:
Reset the seconds to
00
Press
D
.
Change the city code
Use
D
(east) and
B
(west).
Toggle between Daylight Saving Time (
On
)
and Standard Time (
OF
)
Press
D
.
Change the hour or minutes
Use
D
(+) and
B
(–).
Toggle between 12-hour (
12H
) and 24-hour
(
24H
) timekeeping
Press
D
.
Change the year, month, or day
Use
D
(+) and
B
(–).
x
See “Daylight Saving Time (DST)” (page E-13) for details about the DST setting.
E-10
To set the time and date
1. In the Timekeeping Mode, hold down
A
until the
seconds start to flash, which indicates the setting
screen.
2. Press
C
to move the flashing in the sequence shown
below to select other settings.
Seconds
Minutes
Hour
DST
City Code
Day
12/24-Hour Format
Year
Month
C
C
C
C
C
C
C
C
C