Set the time and date
- In the Timekeeping Mode, hold A for at least two seconds and release it when the Home City name shows; the hands move out of the way.
- Press C until the setting you want flashes. The order is: Home City, summer time, 12/24-hour format, seconds, hour, minutes, year, month, day, button tone, then light duration.
- On the seconds, press D to reset them to 00.
- On any other setting, press B or D to change it (hold for fast).
- Press A to leave the setting screen.
Good to know
Resetting the seconds between 30 and 59 adds one minute.
The watch leaves the setting screen by itself after about two or three minutes without a button press.
In any mode, hold C for at least two seconds to go back to the Timekeeping Mode.
From Casio's guide, page 9