Setting Supplement; Switching Between 12-Hour And 24-Hour Timekeeping; Summer Time - Casio 3423 Operation Manual

Supplement:
Pressing D between 30
seconds and 59 seconds will
advances the "minutes" by
one minute and reset the
seconds.
3. Press B to display the date
and time setting screen.
a. Hour
Date and time setting:
Each press of B moves
the flashing in the
following sequence:
"hour", "minute", "year",
"month", "day".
Press D or A to change
the setting of the flashing
item.
4. Press C to end setting.
Switching between 12-hour
and 24-hour Timekeeping
1. Hold down C for about two
seconds.
[SET Hold] will appear and
the time offset value will flash
on the display.
a. Time differential
Operation Guide 3423
2. Press B twice to display the
screen for selecting 12-hour
or 24-hour timekeeping.
Press D to select [12H]
(12-hour timekeeping) or
[24H] (24-hour
timekeeping).
a. PM indicator
Note:
The PM indicator appears
between noon and 11:59
p.m. while 12-hour
timekeeping is being used. It
is not displayed if 24-hour
timekeeping is being used.
3. After all the settings are the
way you want, press C to exit
the setting screen.

Summer Time

Summer time is also called DST
(Daylight Saving Time) and it is a
summer time system that
advances one hour ahead of
standard time (STD: standard
time). The summer time
implementation period and
implementation regions differ by
country. Also, there are countries
and/or regions that do not use
the summer time system.

Setting Supplement

On the Timekeeping Mode
setting screen, each press of B
switches items in the sequence
below.
Time offset
Summer time
12/24-hour timekeeping display
Second
Hour
Minute
Year
Month
Day
Operation tone ON/OFF
Illumination duration
Alarmtimer alert method
Power saving
Return to time offset