Casio module 5576

1. In the Timekeeping Mode, hold A for about two seconds until ADJ shows and the city code flashes.
2. Press C to step through the settings: city code, DST, 12/24-hour format, seconds, hour, minute, year, month, day, then button tone and Power Saving.
3. On the 12/24-hour format, press D to switch.
4. On the seconds, press D to reset them to 00.
5. On the hour, minute, year, month or day, press D to go up and B to go down.
6. Press A to leave the setting screen; the hands move to match the digital time.

From Casio's guide, page E-27

1. In the Timekeeping Mode, hold A for about two seconds until ADJ shows and the city code flashes.
2. Press C once to reach the DST setting.
3. Press D to switch between ON (summer time) and OFF (standard time).
4. Press A to leave. The DST indicator shows while summer time is on.

From Casio's guide, page E-25

1. In the Timekeeping Mode, hold A for about two seconds until ADJ shows and the city code flashes.
2. Press D to move east or B to move west through the city codes.
3. Press A to leave.

From Casio's guide, page E-24

1. Press C until the Alarm Mode shows (ALM).
2. Press D until the alarm screen shows, not the hourly signal screen.
3. Hold A until the hour flashes; this switches the alarm on.
4. Press D (+) or B (-) to set the hour (in 12-hour format, P marks p.m.), press C to move to the minutes, then D or B again.
5. Press A to leave the setting screen.

From Casio's guide, page E-42

1. In the Timekeeping Mode, hold A for about five seconds; keep holding past ADJ until H.SET shows, then let go.
2. The hour and minute hands move to 12 o'clock.
3. If they do not stop exactly at 12 o'clock, press D (+) or B (-) to move them there.
4. Press A to go back to timekeeping, then check that the hands match the digital time; repeat if they do not.

From Casio's guide, page E-45

1. Press B in any mode (except on a setting screen) to light the face for about one second.

From Casio's guide, page E-44

1. In the Timekeeping Mode, hold A for about two seconds until ADJ shows.
2. Press C until KEY♪ or MUTE shows.
3. Press D to switch between KEY♪ (beep on) and MUTE (beep off).
4. Press A to leave.

From Casio's guide, page E-47

1. Press C until the Stopwatch Mode shows (STW).
2. Press D to start, D to stop, and D again to carry on.
3. When it is stopped, press A to reset it to zero.
4. For a split time, press A while it runs (SPL shows); press A again to let the display catch up.

From Casio's guide, page E-39

1. Press C until the Countdown Timer Mode shows (TMR).
2. If a countdown is running, stop it with D and press A to reset it.
3. Hold A for about two seconds until the start time flashes.
4. Press D or B to change the start time, then press A to leave the setting screen.
5. Press D to start; press D again to stop and resume.
6. When it is stopped, press A to go back to the start time.

From Casio's guide, page E-35