Casio 3476 Owner's Manual page 54

• The watch's Home City code setting will change automatically to TYO (Tokyo)
whenever the battery goes dead or is replaced. TYO (Tokyo) causes the watch to
receive the time calibration signals of Japan. If you are using the watch in North
America or Europe, you will need to change the Home City code setting to match
your location after having the watch's battery replaced.
Timekeeping
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
• The year can be set in the range of 2000 to 2099.
• 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 times for the Timekeeping Mode and all the city codes of the World Time Mode
are calculated in accordance with each city's UTC offset.
• The UTC offset is a value that indicates the time difference between a reference
point in Greenwich, England and the time zone where a city is located.
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