Casio 3747, 4772 City Code Table, Timekeeping, Illumination Precautions, DST, GMT, City, City, Setting, Initial Factory Default, 12-hour/24-hourTimekeeping Formats

Operation Guide COMBIWAVE1

•The current time setting in accordance with the time calibration signal takes priority over any time settings you make.

•The watch is designed to automatically update the date and day of the week for the period January 1, 2000 to December 31, 2039. Setting of the date by the time calibration signal cannot be performed starting from January 1, 2040.

•This watch can receive signals that differentiate between leap years and non-leap years.

•Though this watch is designed to receive both time data (hour, minutes, seconds) and date data (year, month, day), certain signal conditions can limit reception to time data only.

•Normally, the signal reception date shown by the Last Signal screen is the date data included in the received time calibration signal. When only time data is received, however, the Last Signal screen shows date as kept in the Timekeeping Mode at the time of signal reception.

•If you are in an area where proper time calibration signal reception is impossible, the watch keeps time within ±20 seconds a month at normal temperature.

•If you have problems with proper time calibration signal reception or if the time setting is wrong after signal reception, check your current city code, DST (summer time), and auto receive settings. The following are the initial factory defaults for these settings.

Setting	Initial Factory Default
City code	NYC	(New York)
DST (summer time)	A	(Auto switching)
	DST
Auto receive	ON	(Auto receive)
	R/C

Timekeeping

•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. In the range of 00 to 29, the seconds are reset to 00 without changing the minutes.

•The day of the week is automatically displayed in accordance with the date (year, month, and day) settings.

•The year can be set in the range of 2000 to 2039.

•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 current time for all city codes in the Timekeeping Mode and World Time Mode is calculated in accordance with the Greenwich Mean Time (GMT) differential for each city, based on your Home City time setting.

•GMT differential is calculated by this watch based on UTC* data.

*The letters “UTC” stands for “Universal Time Coordinated,” 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. The reference point for UTC is Greenwich, England.

12-hour/24-hour Timekeeping Formats

The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also applied in all other modes.

•With the 12-hour format, the P (PM) indicator appears on the display for times in the range of noon to 11:59 p.m. and no indicator appears for times in the range of midnight to 11:59 a.m.

•With the 24-hour format, times are displayed in the range of 0:00 to 23:59. The indicator 24 indicates the 24-hour format.

Illumination Precautions

The watch has an EL (electro-luminescent) panel that causes the entire display to glow for easy reading in the dark. In any mode, press Bto illuminate the display for about one second.

•The electro-luminescent panel that provides illumination loses power after very long use.

•Illumination may be hard to see when viewed under direct sunlight.

•The watch may emit an audible sound whenever the display is illuminated. This is due to vibration of the EL panel used for illumination, and does not indicate malfunction.

•Illumination turns off automatically whenever an alarm sounds.

•Frequent use of illumination runs down the battery.

City Code Table

City	City		GMT	Other major cities in same time zone
Code			Differential
– – –			–11.0	Pago Pago
HNL	Honolulu		–10.0	Papeete
ANC	Anchorage		–09.0	Nome
LAX	Los Angeles		–08.0	San Francisco, Las Vegas, Vancouver,
				Seattle/Tacoma, Dawson City, Tijuana
DEN	Denver		–07.0	El Paso, Edmonton, Culiacan
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
GMT		+00.0		Dublin, Lisbon, Casablanca, Dakar, Abidjan
LON	London
PAR	Paris	+01.0		Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
BER	Berlin			Frankfurt, Vienna, Stockholm
ATH	Athens			Helsinki, Istanbul, Beirut, Damascus,
CAI	Cairo		+02.0	Cape Town
JRS	Jerusalem
JED	Jeddah	+03.0		Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, 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, Colombo
DAC	Dhaka	+06.0
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
SEL	Seoul		+09.0	Pyongyang
TYO	Tokyo
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 June 2006.

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