Casio module 3410

1. In the Timekeeping Mode, hold E for at least two seconds: SET and Hold show, then Hold goes; release E then. The city code flashes.
2. Press D to step through the settings: city code, DST, 12/24-hour format, seconds, hour, minutes, year, month, day, button tone, light duration, power saving, then display units.
3. On the 12/24-hour format, press A to switch between 12H and 24H.
4. On the seconds, press A to reset them to 00.
5. On the hour, minutes, year, month or day, press A to go up and C to go down.
6. Press E twice to leave the setting screen.

From Casio's guide, page E-33

1. In the Timekeeping Mode, hold E for at least two seconds until Hold goes, then release it: the city code flashes.
2. Press D once: the DST setting shows.
3. Press A to cycle through AUTO (switched by the time signal), OFF (standard time) and ON (summer time).
4. Press E twice to leave. The DST indicator shows while summer time is on.

From Casio's guide, page E-31

1. In the Timekeeping Mode, hold E for at least two seconds until Hold goes, then release it: the city code flashes.
2. Press A (east) or C (west) to scroll through the city codes.
3. Press E twice to leave.

From Casio's guide, page E-31

1. In the Timekeeping Mode, press D until the Alarm Mode shows (ALM, after the World Time, Stopwatch and Countdown Timer Modes).
2. Press A to step through AL-1, AL-2, AL-3, AL-4, SNZ (the snooze alarm) and SIG (the hourly signal) until the alarm you want shows.
3. Hold E until SET Hold shows and the settings flash.
4. Press D to move between the hour and the minutes; press A to go up and C to go down (in 12-hour format, mind a.m. or p.m.: P marks p.m.).
5. Press E to leave. Setting a time switches that alarm on.
6. To switch an alarm or the hourly signal on or off, select it with A and press C.

From Casio's guide, page E-82

1. Press L in any mode to light the display.
2. To change the duration: in the Timekeeping Mode, hold E for at least two seconds until Hold goes, release it, then press D until LIGHT shows.
3. Press A to switch between 1.5 seconds (1) and three seconds (3), then press E twice to leave.
4. Auto light (the display lights when you tilt the watch towards your face): in the Timekeeping Mode, hold L for at least three seconds to turn it on or off; LT shows while it is on.

From Casio's guide, page E-88

1. In the Timekeeping Mode, hold E for at least two seconds until Hold goes, then release it.
2. Press D until KEY♪ or MUTE shows.
3. Press A to switch between KEY♪ (beep on) and MUTE (beep off), then press E twice to leave.

From Casio's guide, page E-92

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

From Casio's guide, page E-77

1. In the Timekeeping Mode, press D until the Countdown Timer Mode shows (TMR, after the Stopwatch Mode).
2. If a countdown is running, press A to stop it, then C to reset it; if it is paused, press C.
3. Hold E for at least two seconds until the start time flashes.
4. Press D to move between the hours and the minutes; press A to go up and C to go down.
5. Press E to leave the setting screen.
6. Press A to start, A to stop, A to carry on; when stopped, press C to reset.

From Casio's guide, page E-79