Receiving Time Information
Automatically
When the conditions below are satisfied, the
watch will automatically receive time
information from a GPS signal. If any time
information receive operation is successful,
the watch will no longer attempt to receive a
signal for the rest of the day.
●
●
Current time is between 6:00 a.m. and
10:00 p.m.
●
Light (near a window on a clear day)
continually shining on the LCD of the watch
for about one to two minutes.
Note
●
The time information receive operation
normally takes anywhere from about
10 to 65 seconds.
●
The receive operation can take as long
as 13 minutes when leap second
information is included.
Leap Second Reception
GPS signal reception each year on June 1 or
later and on December 1 or later also receives
leap second information.
Note
●
It can take as long as 13 minutes to
complete the leap second information
receive operation.
●
The leap second information receive
operation is repeated until information
receipt is complete.
●
Once the leap second information
receive operation is complete, the
watch will not make any attempt to
receive it again until the following June
1 or December 1.
●
When connecting with a phone to
adjust the watch date and time
settings, leap seconds will also be
received along with the time
information. If this happens, leap
seconds may not be received when
receiving a GPS signal.
Signal Reception Precautions
●
When the watch is unable to adjust its time
in accordance with a GPS signal for some
reason, average timekeeping accuracy is
within ±15 seconds per month.
●
Note that an internal decoding process the
watch performs after it receives a GPS
signal may cause the time setting to be
slightly off (by less than one second).
●
GPS signal reception is not possible under
the conditions described below.
ー
While the battery indicator is or lower
ー
In any mode besides the Timekeeping
Mode
ー
During power saving
ー
Sensor measurement operation in
progress
ー
Watch is connected with a phone
ー
Navigation log data acquisition operation
in progress
ー
Timer countdown operation in progress
●
If the receive operation is successful, the
time and day settings will be adjusted
automatically in accordance with the Home
City (time zone) and summer time settings.
Summer time will not be applied correctly in
the cases described below.
ー
When the summer time start date and
time, end date and time, or other rules are
changed by authorities
ー
When location information is received,
but it is not location information for your
actual location (For example, when you
are near a borderline of a city and the
acquired location information is for a
neighboring city, etc.)
●
As of July 2017, China does not observe
summer time. If China starts to observe
summer time in the future, the time
displayed by the watch for China may not be
correct.
Using GPS Outside Your Country
Some countries or geographic areas put legal
restrictions on the use of GPS, on the
collection and logging of location information,
etc. Your watch has built-in GPS functionality,
so before embarking on international travel to
a country or area outside of the country where
you purchased your watch, you should check
with the embassy of the countries you plan to
visit, your travel agency, or some other reliable
source of information to find out if there are any
prohibitions or restrictions on bringing in
devices with GPS functionality, or on the
logging of location information, etc.
Connecting with a Phone to
Adjust the Watch’s Time
You can configure watch settings to connect
with a phone at preset times each day and
adjust its time settings in accordance with
information obtained from an online time
server.
●
Using Auto Adjust
Your watch adjusts its time setting four times
a day according to a preset schedule. It
performs the adjustment operation
automatically as you go about your daily life,
without any operation required by you.
12:30
Important!
●
The watch may not be able to perform
auto time adjustment under the
conditions described below.
ー
During a timer countdown operation
ー
While the battery indicator is or
lower
ー
While the watch is too far away from
its paired phone
ー
While communication is not possible
due to radio interference, etc.
ー
While the phone is updating its
system
Operation Guide 3452
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