Using The Watch In A Medical Facility Or Aircraft - Casio 3509 Operation Manual

4.
Configure the date and time settings.
To reset the seconds to 00: Press (D).
●
1 is added to the minutes when the
current count is between 30 and 59
seconds.
For all the other settings, use (B) and (D)
●
to change the flashing setting.
Holding down (B) or (D) scrolls through
settings at high speed.
5.
Repeat steps 3 and 4 to select time and
date settings.
6.
Press (A) to complete the setting
operation.
Note
While the setting is being configured,
●
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Switching between 12-hour and 24-
●
hour Timekeeping
You can specify either 12-hour format or 24-
hour format for the time display.
1.
Enter the Timekeeping Mode.
Navigating Between Modes
l
2.
Hold down (A) for at least two seconds.
Release the button when the name of the
currently selected Home City appears on
the display.
Watch Operation Guide 3509
3.
Press (C) eight times.
This causes [12H] or [24H] to flash on the
display.
4.
Press (D) to toggle the setting between
[12H] (12-hour timekeeping) and [24H]
(24-hour timekeeping).
12-hour timekeeping
5.
Press (A) to complete the setting
operation.
Note
While the setting is being configured,
●
the watch will exit the setting operation
automatically after about two or three
minutes of non-operation.
Home City
Using the Watch in a Medical
Facility or Aircraft
Whenever you are in a hospital, on an aircraft,
or in any other location where connection with
a phone may cause problems, you can
perform the procedure below to disable auto
time adjustment. To re-enable auto time
adjustment, perform the same operation
again.
1.
Enter the Timekeeping Mode.
l
2.
Hold down (A) for at least two seconds.
24-hour timekeeping
Release the button when the name of the
currently selected Home City appears on
the display.
3.
Press (C) 13 times.
This displays [RCVD].
4.
Press (D) to toggle between the auto time
adjustment settings.
[OFF]: Auto time adjustment disabled.
[On]: Enable auto time adjustment.
5.
Press (A) to complete the setting
operation.
Note
●
Navigating Between Modes
Home City
The auto time adjustment setting can
be changed only while the watch is
paired with a phone.
15