Set the time and date
- In the regular timekeeping display, press B to start setting.
- On the seconds, press the 0 key exactly on a time signal to correct them.
- Press C to move the flashing through the settings: seconds, AM/PM, hour (tens, ones), minute (tens, ones), year, month, date.
- Type each flashing value with the number keys; on AM/PM, press the PM key.
- To switch between 12-hour and 24-hour format, press the + key while setting.
- Press B to finish.
From Casio's guide, page 1