Manual Casio 5398 - GA-400 (page 3 of 6) (English)

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Operation Guide 5398

E-29

Checking the Current Time in a Different Time Zone

You can use the World Time Mode to view the current

time in one of 31 time zones (48 cities) around the globe.

The city that is currently selected in the World Time

Mode is called the “World Time City”.

• The hour and minute hands indicate information for the

currently selected Home City.

• When you enter the World Time Mode, the currently

selected city code and city name scroll once across

the digital display. After that, the city code remains

displayed. This same scrolling operation is also

performed whenever you change the World Time City to

a different city or when you press T.

World Time City information

E-28

To use Auto-Start

1. While the stopwatch screen is showing all zeros in

the Stopwatch Mode, rotate the rotary switch to set

the number of countdown seconds (or STW for no

countdown).

2. Press T to start the countdown.

• When the countdown reaches zero, a tone sounds

and a stopwatch timing operation starts automatically.

• Pressing T while the Auto-Start countdown is in

progress immediately starts the stopwatch.

Countdown seconds

E-27

Note

• The Stopwatch Mode can indicate elapsed time up to 23hours, 59minutes,

59seconds.

• Once started, stopwatch timing continues until you press T to stop it, even if

you exit the Stopwatch Mode to another mode and even if timing reaches the

stopwatch limit deﬁ ned above.

• Exiting the Stopwatch Mode while a split time is frozen on the display clears the

split time and returns to elapsed time measurement.

Auto-Start

With Auto-Start, you can conﬁ gure the stopwatch to perform a countdown and start

elapsed time measurement automatically when the countdown reaches zero.

• Set a countdown length in the range of one to 60 seconds before using Auto-Start.

• Auto-Start is disabled automatically after the stopwatch elapsed time operation it

started is complete.

• If you do not want to use a countdown, select STW for the countdown value.

• During the ﬁ nal three seconds of the countdown, a beeper sounds with each

second.

E-26

To perform an elapsed time operation

T T T D

Start Stop (Resume) (Stop) Reset

To pause at a split time

D D T D

Start Split

(SPL displayed)

Split release Stop Reset

To measure two ﬁ nishes

D T D D

Start Split

(SPL displayed)

First runner ﬁ nishes.

Display time of ﬁ rst

runner.

Stop

Second runner

ﬁ nishes.

Split release

Display time of

second runner.

Reset

E-25

Using the Stopwatch

The stopwatch measures elapsed time, split times, and

two ﬁ nishes.

• The display range of the stopwatch is 23 hours,

59minutes, 59.99 seconds.

To enter the Stopwatch Mode

Use C to select the Stopwatch Mode as shown on

page E-10.

Seconds

Minutes

1/100 Second

Hours

E-24

Note

• Resetting the seconds to 00 while the current count is in the range of 30 to 59

causes the minutes to be increased by 1.

• While the “Minute (and hour)” setting is selected above, the hour setting will change

automatically whenever you move the minute setting past midnight.

• The watch’s built-in full automatic calendar makes allowances for different month

lengths and leap years. Once you set the date, there should be no reason to

change it except after you have the watch’s battery replaced.

• The day of the week changes automatically when the date changes.

E-23

3. When the timekeeping setting you want to change is ﬂ ashing, perform the

operation described below.

Screen To do this: Do this:

Toggle between 12-hour (12H) and 24-hour

(24H) timekeeping

Rotate the rotary switch.

Reset the seconds to 00

Press D.

Change the hour or minute

Rotate the rotary switch.

Change the year

Change the month or day

4. Press A to exit the setting mode.

E-22

2. Press C to move the ﬂ ashing in the sequence shown below to select the other

settings.

City Code

(page E-18)

DST

(page E-20)

12/24-Hour Format

Seconds

Minute

(and hour)

Illumination Duration

(page E-41)

Hour

(only)

Button Operation Tone On/Off

(page E-49)

Month/Day

Year

E-21

Adjusting the Digital Time and Date Settings

Use the procedure below to adjust the digital time and date settings.

To conﬁ gure the digital time and date settings

1. In the Timekeeping Mode, hold down A until the

ﬂ ashing Hold indicator disappears from the display

and the currently selected city code appears on the

right side of the upper display.

• This indicates the city code setting mode.

E-20

To change the Daylight Saving Time (summer time) setting

1. In the Timekeeping Mode, hold down A until the

ﬂ ashing Hold indicator disappears from the display

and the currently selected city code appears on the

right side of the upper display.

• This indicates the city code setting mode.

2. Press C to display the DST setting mode.

3. Rotate the rotary switch to toggle between Daylight

Saving Time (

ON) and Standard Time (OFF).

• Note that you cannot switch between daylight saving

time and standard time while UTC is selected as your

Home City.

After the setting is the way you want, press A to

return to the Timekeeping Mode.

• The DST indicator appears to indicate that Daylight

Saving Time is turned on.

DST indicator

How to remove the illumination function of Casio 5398 - GA-400? That is the light would not be lit on after button B is pressed. Submitted on 18-8-2022 at 11:48
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How to turn off the illumination function of a G-shock GA-400 permanently? That is, the light would not on even button B is pressed. Submitted on 16-8-2022 at 18:39
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Casio 5398 - GA-400 Manual

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