Operation Guide 3512
EN-19
To measure elapsed time
Note
x
You can perform the following steps starting from either the lap time screen or the
split time screen.
1. Press
D
to start the stopwatch.
2. Press
D
again to stop the stopwatch.
x
You can resume the measurement operation by pressing
D
.
3. Press
A
to clear the stopwatch to all zeros.
EN-18
Seconds
More than 10 hours
More than one hour
Minutes
Seconds
1/100 second
Hours
Minutes
1/100 second
Hours
Minutes
Seconds
Hours
Minutes
Seconds
EN-17
x
See “To measure elapsed time with lap times” (page EN-20) and “To measure
elapsed time with split times” (page EN-23) for more information about each type of
measurement.
x
You can perform elapsed time measurement starting from either the lap time
screen or the split time screen (pages EN-20 and EN-23). Whenever you enter the
Stopwatch Mode, the screen (lap time or split time) that was displayed when you
last exited the mode will appear first.
x
During a stopwatch elapsed time operation, the upper display initially shows
minutes, seconds, and a 1/100-second value. This changes to hours, minutes, and
seconds when the time in the upper display exceeds 60 minutes.
x
The lower display initially shows hours, minutes, seconds, and a 1/100-second
value. This changes to hours, minutes, and seconds when the time in the lower
display exceeds 10 hours.
EN-16
x
The stopwatch measurement operation continues even if you exit the Stopwatch
Mode.
x
For information about how stopwatch times are stored in memory, see “Memory
Management” (page EN-26).
Viewing the Stopwatch Displays
The information that appears in the watch’s upper and lower displays depends on
whether you are measuring lap times or split times.
Lap Time Measurement
Upper Display: Lap time
Lower Display: Elapsed time
Split Time Measurement
Upper Display: Lap time
Lower Display: Elapsed time (Split time appears here for eight seconds as it is stored
in memory.)
EN-15
Stopwatch
The stopwatch lets you measure elapsed time, lap
times, split times, and two finishes. Lap times and
split times can be stored in memory.
x
The display range of the stopwatch is 99 hours,
59 minutes, 59 seconds.
x
All of the operations in this section are performed in
the Stopwatch Mode, which you enter by pressing
C
(page EN-8).
Note
x
“Lap time” is the time spent to cover a specific
segment of a race, such as one lap around a track.
“Split time” is the time spent from the beginning of a
race up to a certain point.
x
The stopwatch continues to run, restarting from
zero after it reaches its limit, until you stop it.
Remaining free records
Hours
1/100 second
Minutes
Seconds
EN-14
Daylight Saving Time (DST) Setting
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 between DST and Standard Time
1. In the Timekeeping Mode, hold down
A
until the
second starts to flash, which indicates the setting
screen.
2. Press
C
once and the DST setting screen appears.
3. Press
D
to toggle between Daylight Saving Time (
On
displayed) and Standard Time (
OF
displayed).
4. Press
A
to exit the setting screen.
x
The
DST
indicator appears on the Timekeeping and
Alarm Mode screens to indicate that Daylight Saving
Time is turned on.
DST indicator
On/Off status
EN-13
4. Press
A
to exit the setting screen.
x
The day of the week is displayed automatically in accordance with the date
(year, month, and day) settings.
x
See “Daylight Saving Time (DST) Setting” below for details about the DST
setting.
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press
D
to toggle between 12-hour timekeeping and
24-hour timekeeping.
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 the
A
(AM) 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 other modes.
x
The
A
and
P
indicators are not displayed with the Timekeeping Mode time on the
Timer Mode and Dual Time Mode screens.
EN-12
3. When the setting you want to change is flashing, use
B
and
D
to change it as
described below.
Screen
To do this:
Do this:
Reset the second to
00
Press
D
.
Toggle between Daylight Saving Time (
On
) and
Standard Time (
OF
)
Change the hour or minute
Use
B
(–) and
D
(+).
Change the year
Change the month or day
EN-11
To set the time and date
1. In the Timekeeping Mode, hold down
A
until the
second starts to flash, which indicates the setting
screen.
2. Press
C
to move the flashing in the sequence shown
below to select other settings.
Second
Minute
Hour
DST
Day
Year
Month
C
C
C
C
C
C
C
Second
EN-10
Timekeeping
Use the Timekeeping Mode to set and view the
current time and date.
PM indicator
Month – Day
Day of week
Second
Hour
Minute