Checking The Current Time In A Different Time Zone; Using The Stopwatch - Casio 5551 Operation Manual

Operation Guide 5551
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down A until ADJ
appears.
• This indicates the city code setting mode.
2. Press C to display the DST setting mode.
3. Press D 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
DST indicator
Home City.
4. 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.
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2. Press C to move the flashing in the sequence shown below to select the other
settings.
C C
City Code DST
(page E-18) (page E-20)
C
Illumination Duration
(page E-38)
C
Button Operation Tone On/Off
(page E-45)
C
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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 12-hour format is selected for timekeeping, a P (PM) indicator will appear
for times from noon to 11:59 p.m. No indicator appears for times from midnight to
11:59 a.m. With 24-hour format, time is displayed from 0:00 to 23:59, without any P
(PM) indicator.
• 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.
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To enter the World Time Mode
Use C to select the World Time Mode as shown on page E-10.
• The display changes as shown below.
Mode name World Time City city code
and name will scroll.
Press A to display the city code and name of the currently selected city.
•
To view the time in another time zone
Pressing D changes the city code setting.
Each press of D advances to the next city code.
•
To change the city code to UTC, press B and D at the same time.
•
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Using the Stopwatch

The stopwatch measures elapsed time, split times, and two finishes.
To enter the Stopwatch Mode
Use C to select the Stopwatch Mode as shown on page E-11.
1/100 second
Minutes
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C
12/24-Hour Format Seconds
C
Hour
C
Minutes
C
Day Month Year
C C
A
World Time City
city code
Seconds
Configuring Current Time and Date Settings
You can use the procedure below to adjust the Timekeeping Mode time and date
settings if they are off.
Changing the digital Home City data should cause the analog time setting to change
accordingly. If the analog time does not indicate the digital time, check the home
positions of the hands and make adjustments if necessary (page E-43).
To change the current time and date settings
1. In the Timekeeping Mode, hold down A until ADJ
appears.
• This indicates the city code setting mode.
3. When the timekeeping setting you want to change is flashing, use D and/or B to
change it as described below.
Screen To do this:
Toggle between 12-hour (12H) and 24-hour
(24H) timekeeping
Reset the seconds to 00
Change the hour or minute
Change the year
Change the month or day
4. Press A to exit the setting mode.

Checking the Current Time in a Different Time Zone

You can 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".
There are two World Time City settings: actually selecting the World Time City, and
selecting either standard time or daylight saving time (DST).
World Time : hour and minutes
To specify standard time or daylight saving time (DST) for a city
In the World Time Mode, hold down A for about two
seconds.
• This toggles between Daylight Saving Time (DST
indicator displayed) and standard time (DST indicator
not displayed).
• Note that you cannot switch between standard time/
daylight saving time (DST) while UTC is selected as the
World Time City.
• The standard time/daylight saving time (DST) setting
affects only the currently displayed city. Other cities are
DST indicator
not affected.
To perform an elapsed time operation
D D D
Start Stop Resume
To pause at a split time
D A A
Start Split Split release
(SPL displayed)
To measure two finishes
D A D
Start Split Stop
(SPL displayed) Second runner
First runner finishes. finishes.
Display time of first
runner.
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Do this:
Press D.
Press D.
Use D (+) and B (–).
Use D (+) and B (–).
Use D (+) and B (–).
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Home Time :
hour and minutes
PM indicator
World Time City
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D A
Stop Reset
D A
Stop Reset
A A
Split release Reset
Display time of
second runner.
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