Checking The Current Time In A Different Time Zone; Auto Correction Of Hand Home Positions - Casio Pro Trek PRW-5100G-4 Operation Manual

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To set an alarm time
1. In the Alarm Mode, use A and C to scroll through the alarm (–1
through –5) until the one whose time you want to set is displayed.
2. Hold down E until each of the following steps occurs.
Alarm ON/OFF
Alarm ON/OFF
Hold SET appears on the digital display. ➝ The current setting
indicator
indicator
fl ashes.
This is the setting screen.
3. Press D to move the fl ashing between the hour and minute settings.
4. While a setting is fl ashing, use A (+) and C (–) to change it.
When setting the alarm time using the 12-hour format, take care to set the time correctly as a.m. (no
indicator) or p.m. ( P indicator).
5. Press E to exit the setting screen.
E-80

Checking the Current Time in a Different Time Zone

You can use the World Time Mode to view the current time in one of 29 time zones (29 cities) around the
globe. The city that is currently selected in the World Time Mode is called the "World Time City".
You also can swap the current World Time City and Home Time City in the World Time Mode. (page
E-84)
To enter the World Time Mode
Currently selected
Currently selected
Use D to select the World Time Mode ( WT) as shown on page E-24.
World Time City
World Time City
WT appears on the digital display and the second hand moves to the
city code of the currently selected World Time City.
To view the time in another time zone
In the World Time Mode, use A to move the second hand to a city code
in the zone whose time you want to view.
Keep pressing A until the second hand is pointing to the city code
you want.
The current time in time zone of the currently selected city code is
shown in the digital display.
Current time in the
Current time in the
currently selected
currently selected
World Time City
World Time City
E-82
Swapping the Home City and World Time City
You can use the procedure below to swap your Home City with your World Time City.
This function comes in handy for those who often travel between two different time zones.
The following example shows what happens when the Home City and World Time City are swapped while
the Home City originally is TOKYO ( TYO) and the World Time City is NEW YORK ( NYC).
Home City
Before swapping
10:08 p.m.
(Standard time)
New York
After swapping
9:08 a.m.
(Daylight saving time)
To swap your Home City and World Time City
1. In the World Time Mode, use A to select the city code you want to make your World Time City.
Keep pressing A until the second hand is pointing to the city code you want.
In this example, you would move the second hand to NEW YORK ( NYC) in order to select New York as
the World Time City.
2. Hold down C until each of the following steps occurs.
) appears on the digital display. ➝ Hold (
Hold (
This will cause the World Time City ( NEW YORK /NYC in this example) you selected in step 1 of this
procedure your new Home City, and your previously selected Home City ( TOKYO /TYO in this
example) will become your new World Time City. The digital display and hands will indicate the
current time in your new World Time City ( TOKYO /TYO in this example).
E-84

Auto Correction of Hand Home Positions

Strong magnetism or impact can cause the hands of the watch to be off, even if the watch is able to
perform the signal receive operation. This watch performs an auto correction procedure to ensure that the
hands are always in the correct positions.
Auto correction is performed only while the watch is in the Timekeeping Mode. Auto correction is not
performed if the watch is in the Timekeeping Mode while a Countdown Timer Mode operation is in
progress.
Each hour, the watch performs automatic correction of the hand positions from –55 minutes to +5
minutes.
You also can trigger auto correction of hand home positions manually, if you want. See "To trigger auto
correction of hand home positions" (page E-87) for more information.
Auto correction of hand home positions can take up to three and a half minutes to complete.
If hand positions are off by one hour or more, correct them using the procedure under "To trigger auto
correction of hand home positions" (page E-87) or "Adjusting Home Positions Manually" (page E-88).
E-86
Operation Guide 5114 5214
−1
−2
−3
−5
−4
World Time City
Tokyo
New York
9:08 a.m.
(Daylight saving time)
Tokyo
10:08 p.m.
(Standard time)
) disappears.
To test the alarm
In the Alarm Mode, hold down A to sound the alarm tone.
To turn an alarm and the Hourly Time Signal on and off
1. In the Alarm Mode, use A and C to select an alarm or the Hourly Time Signal.
2. When the alarm or the Hourly Time Signal you want is selected, press B to toggle it between ( ON) and
off ( OFF).
The alarm on indicator (when any alarm is on) and the hourly time signal on indicator (when the
hourly time signal is on) are shown on the digital display in all modes.
Alarm on indicator
To stop the alarm
Press any button.
To specify standard time or daylight saving time (DST) for a city
1. In the World Time Mode, use A to move the second hand to the city
code whose standard time/daylight saving time setting you want to
change.
Keep pressing A until the second hand is pointing to the city code
you want.
2. Hold down E until each of the following steps occurs.
Hold appears on the digital display. ➝ Hold disappears.
This toggles the city code you selected in step 1 between Daylight
Saving Time ( dSt indicator displayed) and standard time ( dSt
indicator not displayed).
Using the World Time Mode to change the DST setting of the city
DST indicator
DST indicator
code that is selected as your Home City also will change the
Timekeeping Mode time DST setting.
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 selected time zone. Other time zones are not affected.
Note
If your current World Time City supports time calibration signal reception, making it your Home City
enables calibration signal reception for that city.
To trigger auto correction of hand home positions
Perform the following procedure when the time setting is off.
1. Use D to enter the Hand Home Position Adjustment Mode (page
E-24).
The digital display will show the current Timekeeping Mode time. You
can check the hand positions by comparing the digital time with
the time indicated by the analog hands.
2. Hold down A for about three seconds until each of the following steps
occurs.
Hold HS appears on the digital display. ➝ H-S fl ashes.
This starts auto hand home position adjustment.
To cancel an ongoing auto hand home position operation part way
through, press A .
Hourly time signal
on indicator
E-81
E-83
E-85
E-87

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