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, hours, minutes, year, month, day, then the button tone and the light duration.
- For the seconds, press D to reset them to 00. For the other settings, press B or D to change the flashing value; hold either to scroll fast.
- Repeat for each setting you want to change, then press A to finish.
Good to know
When you reset the seconds while they are between 30 and 59, 1 is added to the minutes.
For 12-hour or 24-hour format, press C twice after the Home City shows, then B or D to choose 12H or 24H.
With no operation for about two or three minutes, the watch leaves the setting screen by itself.
From Casio's guide, page 8