Set the time and date
- In the Timekeeping Mode, press A: the seconds start to flash.
- Press C to move through the settings: seconds, hour, minutes, year, month, day.
- On the seconds, press D to reset them to 00.
- On any other setting, press D to count up (hold for fast).
- While any digits flash, press B to switch between 12-hour and 24-hour format.
- Press A to leave the setting screen.
Good to know
Resetting the seconds between 30 and 59 adds one minute.
The day of the week follows the date on its own.
From Casio's guide, page E-8