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Manual Time Signal Receive
Important!
A manual time calibration signal
●
receive operation cannot be
performed while the watch is paired
with a phone. When you want to
perform a manual time calibration
signal receive operation, unpair the
watch from your phone.
Unpairing
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1.
Place the watch near a window or some
other location appropriate for time signal
reception.
2.
Enter the Calendar Mode.
Navigating Between Modes
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3.
Hold down (D) for at least 0.5 seconds
until the second hand points to [RC].
This indicates that the receive operation
has started. After the receive operation is
complete, the watch's time and day
settings will be adjusted accordingly.
Note
The receive operation takes anywhere
●
from about two minutes to about 10
minutes. It can take as long as 20
minutes.
Time calibration signal reception is
●
better at night than during the day.
A time calibration signal cannot be
●
received while the city selected as your
Home City is one that does not support
signal reception.
Watch Operation Guide 5636
Signal Reception Precautions
When the watch is unable to adjust its time
●
in accordance with a calibration 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 signal
may cause the time setting to be slightly off
(by less than one second).
Time calibration signal reception is not
●
possible under the conditions described
below.
While battery power is low
ー
In any mode besides the Calendar Mode
ー
While the watch is at Level 3 power
ー
saving
While the crown is pulled out
ー
While a timer countdown operation is in
ー
progress
While the Home City setting is a time zone
ー
where time signal reception is not
possible
While the watch is outside the time signal
ー
reception range
While the Airplane Mode is enabled
ー
When the receive operation is successful,
●
the time and/or day settings will be adjusted
automatically. Summer time will not be
applied correctly in the case described
below.
When the summer time start date and
ー
time, end date and time, or other rules are
changed by authorities
If your watch is connected with a phone,
●
settings must be configured so CASIO
WATCHES can acquire location
information. Even if you are in an area that
is within the reception range of a time signal,
reception will not be performed if settings
are configured in a way that makes signal
reception impossible.
As of January 2020, 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 Watch Operations to
Adjust the Time Setting
If your watch cannot connect with a phone for
some reason, you can use watch operations
to adjust date and time settings.
Selecting Your Home City's Time Zone
●
Use the procedure in this section to select the
time zone of the city you want to use as your
Home City.
Important!
If you do not specify the time zone
●
where you are using the watch, the
current time setting will not be correct
after it is adjusted based on a time
calibration signal.
1.
Loosen the crown and then pull it out to the
second click.
The second hand indicates the currently
selected time zone, while the mode hand
indicates the current summer time setting.
The time zone is indicated as a time
●
offset. ±0 hours is indicated when the
second hand is at 12 o'clock, with other
offsets indicated when it is to the left and
right of 12 o'clock. For information about
time zone positions, go to the section
below.
City (Time Zone) List
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Tokyo (+9 offset)
Time zone (9 position)
Summer time setting
2.
Rotate the crown to change the time zone.
3.
Push the crown back in and then lock it.
Crown
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