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Operation Guide 2628
3
To view the sunrise/sunset time for a particular date
1.Enter the Sunrise/Sunset Mode.
• This will display the sunrise and sunset times for the
current date (as kept by the Timekeeping Mode) at the
location specified by the city code, latitude, longitude,
and GMT differential you specified using the
procedure under “To specify a city code to check its
sunrise and sunset times” and “To configure longitude,
latitude and GMT differential settings”.
2.While the sunrise/sunset time are on the display, use
D (+) and B (–) to scroll through the dates.
• The date (year, month, and day) will appear first,
followed by the sunrise and sunset time for that date.
• You can select any date between January 1, 2000 and
December 31, 2099.
Sunset time
Sunrise time
Note
• Sunrise/sunset time is displayed in 5-minute units.
• If you think that the sunrise and/or sunset times are not correct for some reason,
check the watch’s city code, longitude, latitude, and GMT defferential settings.
• The sunrise and sunset times displayed by this watch are times at sea level. Sunrise
and sunset times are different at altitudes other than sea level.
Sunrise/Sunset Graphic
In the Sunrise/Sunset Mode, the graphic in the upper right corner of the display shows
the daylight hours and nighttime hours for the currently selected date. In the
Timekeeping Mode, the graphic shows the daylight hours and nighttime hours for
today’s date.
• The dark segments of the graphic indicate nighttime hours, while the light segments
indicate daytime hours.
• The flashing segment in the graphic in the Timekeeping Mode is the one that
represents the current time.
• Each graphic segment represents one hour.
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
22:00
Sunrise time
Sunset time
Sunrise/Sunset Mode Graphic Timekeeping Mode Graphic
Current time
Bearing Mode
The Bearing Mode lets you determine approximate
directions using a displayed angle value that indicates the
angle to the sun (solar azimuth).
• All of the operations in this section are performed in the
Bearing Mode, which you enter by pressing C.
Important!
Before trying to use this watch to calculate the solar azimuth, make sure to check that
the following settings are configured correctly for your current location.
City code and current time settings
Longitude, latitude, and GMT differential
The above settings used by this operation are the same as those you configure to
calculate sunrise and sunset times. If you have already configured these settings for
sunrise/sunset operations, you need only to configure the solar traverse directions
here.
Solar azimuth
• The factory default configuration of the Bearing Mode settings is:
Latitude: North 35 degrees; Longitude: East 140 degrees; GMT Differential: +9
hours; Solar Traverse Direction: South.
• Note that you cannot use the Bearing Mode to determine directions in the following
cases.
When the sun is not visibl
e
At night
When sun traverses the sky directly overhead or when you cannot determine if it
traverses to the north or south
To set the solar traverse directions
1.In the Bearing Mode, hold down A until N or S flashes
on the display. This indicates the setting screen.
2.Press D to toggle the setting between N (north) and S
(south).
3.Press A to exit the setting screen.
• The watch uses the solar traverse directions specified
by you, along with the watch’s location setup (city code,
date, time, longitude, latitude, GMT differential) to
calculate and display the solar azimuth.
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To determine your bearings
1. Enter the Bearing Mode.
• The watch uses the solar traverse directions, along with the watch’s location setup
(city code, date, time, longitude, latitude, GMT differential) to calculate and display
the current solar azimuth.
2. Find the same value on the bezel as the angle value displayed for the solar azimuth
on the Bearing Mode screen.
3. Position the watch so the value you found in step 1 is pointing at the sun.
4. The 12 o’clock position of the watch should now be pointed towards true north.
• Note that the bearings produced by the Bearing Mode are intended for general
reference only.
180
2
1
0
North
Bezel
Time Recorder
The Time Recorder lets you store up to 30 records of the
current time (month, day, hour, minutes, seconds, and
DST on/off setting) with the touch of a button. One way
you can use the Time Recorder is to record the start time
and the end time of a particular event.
To record a Time Recorder time
In the Timekeeping Mode, hold down B to record the
Home City time (month, day, hour, minutes, seconds, and
DST on/off setting).
• The recorded time flashes for about two seconds, and
then it is assigned a record number. After that, the
Timekeeping Mode screen appears.
• Records are assigned numbers sequentially from
#01
through #30.
Time record number
Recorded time
(Hour : Minutes Seconds)
Recorded date
(Month – Day)
Time recorder graphic
• Storing a new time record when there are already 30 records stored in memory
automatically deletes record
#01, shifts the remaining records upwards by 1, and
stores the new record as
#30.
To recall Time Recorder times
In the Time Recorder Mode, use B (+) and D (–) to scroll through times stored in
memory.
• If you recorded a new Time Recorder time since you last entered the Time Recorder
Mode, the newest record appears first. If you have not recorded a new time, the
record you were viewing when you last exited the Time Recorder Mode appears first.
To delete all Time Recorder times
In the Time Recorder Mode, hold down A to delete all Time Recorder times.
Time Recorder Graphic
In the Time Recorder Mode in the upper right corner of the display indicates hours that
has a Time Recorder record.
• A dark segment indicates an hour that has a Time Recorder record.
• Each graphic segment represents one hour.
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
This hour has a Time
Recorder record.
World Time
World Time shows the current time in 30 cities (29 time
zones) around the world.
• For full information on city codes, see the “City Code
Ta bl e ”.
• The current time for all city codes in the World Time
Mode is calculated in accordance with the Greenwich
Mean Time (GMT) differential for each city, based on
your Home City time setting.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
Timekeeping
Mode time
City code
Current time in the
selected city code
To view the time for another city code
While in the World Time Mode, press D to scroll through the city codes (time zones)
to the east or B to scroll to the west.
• If the current time shown for a city is wrong, check your Timekeeping Mode time and
Home City settings and make the necessary changes.
To toggle a city code time between Standard Time and Daylight Saving Time
1.In the World Time Mode, use B and D to display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
2.Hold down A to toggle Daylight Saving Time (DST
indicator displayed) and Standard Time (DST indicator
not displayed).
• The DST indicator is on the display whenever you display
a city code for which Daylight Saving Time is turned on.
• Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
• Daylight Saving Time (DST) cannot be turned on and off
while GMT is selected as the city code.
DST indicator
• Daylight Saving Time (DST) advances the time setting by one hour from Standard
Time. Remember that not all countries or even local areas use Daylight Saving Time.
• The watch will perform a signal receive operation even if it is in the World Time Mode
when a calibration time is reached. If this happens, the World Time Mode time
settings will be adjusted in accordance with the Home City time.
Alarms
The Alarm Mode gives you a choice of four one-time
alarms and one snooze alarm.
Also use the Alarm Mode to turn the Hourly Time Signal
(
SIG) on and off.
• There are five alarms numbered
AL1 through AL4,
and
SNZ. You can configure SNZ as a snooze alarm
only. Alarms
AL1 through AL4 can be used as one-
time alarms only.
• Alarm settings (and Hourly Time Signal settings) are
available in the Alarm Mode, which you enter by
pressing C.
Alarm time (Hour : Minutes)
Alarm number
Timekeeping
Mode time