How to set time on G-Shock GLS-8900 / Casio 3422

Before using this guide, we recommend:

• Download official GLS-8900 Manual →
• Watch official 3031 GLS-8900 Manual Online →

All settings are clearly explained and understandable.

1. In the Timekeeping Mode, hold down A until the seconds start to fl ash, which indicates the setting screen.
2. Press C to move the fl ashing in the sequence shown below to select other settings.

3. When the setting you want to change is fl ashing, use D and B to change it as described below.

• See “Daylight Saving Time (DST)” on page E-9 for details about DST setting.
• The UTC offset setting range is –12.0 to +14.0, in 0.5-hour units.
• When DST is turned on, the UTC offset setting range is –11.0 to +15.0, in 0.5- hour units.

4. Press A to exit the setting screen.

• The day of the week is displayed automatically in accordance with the date (year, month, and day) settings.