Casio 3793 Countdown Timer, Reference, Stopwatch, Character List, City Code Table, Auto Return Feature, Scrolling, Initial Screens, Display Illumination Precautions

Operation Guide 3793

To test the alarm

In the Alarm Mode, hold down Dto sound the alarm.

To turn an alarm and the Hourly Time Signal on and off

1.In the Alarm Mode, use Dto select an alarm or the Hourly Time Signal.

2.Press A to toggle it on and off.

•The indicators shown below appear on the display when the daily alarm and Hourly Time Signal are turned on. Each indicator disappears when the corresponding function is turned off.

Hourly time signal	Alarm 1
on indicator	on indicator
Snooze alarm	Alarm 2
on indicator	on indicator

•The above on indicators appear on the display in all modes.

•An on indicator on the display flashes while its corresponding alarm operation is sounding.

•The snooze alarm on indicator flashes during the 5-minute intervals between alarms.

Countdown Timer

Reference

This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch.

Auto Return Feature

•The watch automatically returns to the Timekeeping Mode if you do not perform any button operation for two or three minutes in the Telememo, Alarm, or Hand Setting Mode.

•If you leave a screen with flashing digits or a cursor on the display for two or three minutes without performing any operation, the watch automatically exits the setting screen.

•Holding down Bfor about one second in any mode jumps directly to the Timekeeping Mode. This operation does not work while a setting screen is on the display.

Scrolling

The Cand D buttons are used in various modes and setting screens to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.

Initial Screens

When you enter the Telememo, World Time, or Alarm Mode, the data you were viewing when you last exited the mode appears first.

Seconds

Hours Minutes

The countdown timer can be set within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero.

•All of the operations in this section are performed in the Countdown Timer Mode, which you enter by pressing

B.

To set the countdown start time

1.In the Countdown Timer Mode, hold down Auntil the hour setting of the countdown start time starts to flash,which indicates the setting screen.

2.Press Bto move the flashing between the hour and minute settings.

World Time

•The UTC differentials associated with each city code are used to calculate World Time Mode times, based on the time you set for any one of the World Time cities.

•The UTC differential is a value that indicates the time difference between a reference point in Greenwich, England and the time zone where a city is located.

•The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is the world-wide scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s rotation.

Display Illumination Precautions

3.While a setting is flashing, use D(+) and C(–) to change it.

• To set the starting value of the countdown time to 24 hours, set 0:00.

4.Press A to exit the setting screen.

To use the countdown timer

Press Dwhile in the Countdown Timer Mode to start the countdown timer.

•When the end of the countdown is reached, the alarm

sounds for 10 seconds or until you stop it by pressing any button. The countdown time is automatically reset to its starting value after the alarm stops.

•Press Dwhile a countdown operation is in progress to pause it. Press Dagain to resume the countdown.

•To completely stop a countdown operation, first pause it (by pressing D), and then press A. This returns the countdown time to its starting value.

•The countdown timer measurement operation continues even if you exit the Countdown Timer Mode.

Stopwatch

The light that illuminates the face uses two LEDs (light-emitting diode) and a light guide panel that cause the display to glow for easy reading in the dark. In any mode (except when a setting screen is on the display), press Cto illuminate the display for about one second.

•The illumination provided by the light may be hard to see when viewed under direct sunlight.

•The light automatically stops illuminating whenever an alarm sounds.

•Frequent use of the light shortens the battery life.

Character List

Seconds	1/100
	second

Hours Minutes

The stopwatch lets you measure elapsed time, split times, and two finishes.

•The display range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds.

•The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.

•The stopwatch measurement operation continues even if you exit the Stopwatch Mode.

•Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement.

•All of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing B.

City Code Table

City	City	UTC	Other major cities in same time zone
Code		Differential
PPG	Pago Pago	–11.0
HNL	Honolulu	–10.0	Papeete

To measure times with the stopwatchElapsed Time

Start	Stop	Re-start	Stop	Clear
Split Time
Start	Split	Split release	Stop	Clear
Two Finishes
Start	Split	Stop	Split release	Clear
	First runner	Second runner	Display time of
	finishes.	finishes.	second runner.
	Display time of
	first runner.

ANC	Anchorage	–09.0	Nome
LAX	Los Angeles	–08.0	San Francisco, Las Vegas, Vancouver, Seattle, Dawson City
DEN	Denver	–07.0	El Paso, Edmonton
CHI	Chicago	–06.0	Houston, Dallas/Fort Worth, New Orleans, Mexico City,
			Winnipeg
NYC	New York	–05.0	Montreal, Detroit, Miami, Boston, Panama City, Havana,
			Lima, Bogota
CCS	Caracas	–04.0	La Paz, Santiago, Port Of Spain
RIO	Rio De Janeiro	–03.0	Sao Paulo, Buenos Aires, Brasilia, Montevideo
– – –		–02.0
– – –		–01.0	Praia
LON	London	+00.0	Dublin, Lisbon, Casablanca, Dakar, Abidjan
PAR	Paris	+01.0	Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
BER	Berlin		Frankfurt, Vienna, Stockholm
CAI	Cairo	+02.0	Athens, Helsinki, Istanbul, Beirut, Damascus, Cape Town
JRS	Jerusalem
JED	Jeddah	+03.0	Kuwait, Riyadh, Aden, Addis Ababa, Nairobi
MOW	Moscow
THR	Tehran	+03.5	Shiraz
DXB	Dubai	+04.0	Abu Dhabi, Muscat
KBL	Kabul	+04.5
KHI	Karachi	+05.0	Male
DEL	Delhi	+05.5	Mumbai, Kolkata
DAC	Dhaka	+06.0	Colombo
RGN	Yangon	+06.5
BKK	Bangkok	+07.0	Jakarta, Phnom Penh, Hanoi, Vientiane
HKG	Hong Kong	+08.0	Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Perth,
			Ulaanbaatar
TYO	Tokyo	+09.0	Seoul, Pyongyang
ADL	Adelaide	+09.5	Darwin
SYD	Sydney	+10.0	Melbourne, Guam, Rabaul
NOU	Noumea	+11.0	Port Vila
WLG	Wellington	+12.0	Christchurch, Nadi, Nauru Island

*Based on data as of December 2004.

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