Set the time and date
- In the Timekeeping Mode, hold E for at least two seconds, until the Home City name shows.
- Press E: the seconds flash.
- Press D to step through the settings: seconds, hours, minutes, year, month, then day.
- On the seconds, press C to reset them to 00.
- On any other setting, press C or A to change it.
- Press E to leave the setting screen.
- To switch between 12-hour and 24-hour format: hold E for at least two seconds until the Home City name shows, press D four times, press C to pick 12H or 24H, then press E twice.
Good to know
Resetting the seconds between 30 and 59 adds one minute.
Paired with the CASIO WATCHES phone app, the watch corrects its time from the phone; press B in the Timekeeping Mode to connect now.
From Casio's guide, page 8