How To Set Time On A G-SHOCK Watch
G-SHOCK watches are built for durability, precision and everyday reliability. Whether you've travelled to a new time zone, changed daylight saving settings or simply need to update your watch, knowing the correct process helps ensure accurate timekeeping.
This G-SHOCK watch time setting guide covers the general steps used across many models. However, because G-SHOCK watches are available in digital, analogue-digital, solar-powered and Bluetooth®-enabled designs, the exact process may vary depending on your module number.
Before setting the time
Most G-SHOCK watches use a four-button layout:
- A (top left) – Adjust
- B (top right) – Light or Reverse
- C (bottom left) – Mode
- D (bottom right) – Search or Forward
Many newer models can automatically synchronise the time using smartphone connectivity or radio signal reception, reducing the need for manual adjustments.
How to set a digital G-SHOCK watch
If you're wondering how to set the time on your G-SHOCK watch, the process is similar across many digital models.
Step 1: Enter adjustment mode
Press and hold Button A (Adjust) until the city code, seconds or another setting begins flashing.
Step 2: Select the setting you want to change
Press Button C (Mode) to cycle through settings such as:
- Home City
- Daylight Saving Time (DST)
- Seconds
- Hours
- Minutes
- Year
- Month
- Day
- 12-hour or 24-hour format
Step 3: Adjust the settings
Use Button D (Forward/Search) or Button B (Reverse), where available, to change the selected value.
Step 4: Save your settings
Press Button A (Adjust) again to save your changes and return to normal timekeeping.
How to set an analogue-digital G-SHOCK watch
Most analogue-digital G-SHOCK watches use the same four-button layout rather than a crown. The hands are controlled electronically and automatically align with the digital time.
Step 1: Set your Home City
Press and hold Button A (Adjust) until the display begins flashing.
Use Buttons B and D to select the city code closest to your location. This is one of the most important settings because many G-SHOCK functions rely on the correct Home City being selected.
Step 2: Adjust the time if required
Press Button C (Mode) to move through the available settings and make any necessary adjustments.
In many cases, selecting the correct Home City will automatically display the correct local time.
Step 3: Save your settings
Press Button A (Adjust) to save your settings. The hands will automatically move to match the digital display.
Why your Home City matters
One of the most common causes of incorrect time settings is an incorrect Home City selection.
Modern G-SHOCK watches use the Home City as the foundation for features such as World Time, Bluetooth synchronisation, automatic daylight saving adjustments and calendar functions.
Before manually adjusting the hour or minute, always check that your Home City is set correctly.
Use Bluetooth® for automatic time updates
Many modern G-SHOCK watches support Bluetooth® connectivity, allowing them to automatically synchronise with your smartphone for accurate timekeeping.
The official CASIO WATCHES app is designed for life in the digital age, helping you keep your watch accurate while unlocking additional features such as automatic time adjustment, world time management, alarms and watch customisation on supported models.
Troubleshooting incorrect time settings
If you're following this G-SHOCK watch time-setting guide and the time is still incorrect, check that:
- The correct Home City is selected
- Daylight saving settings are accurate
- The battery has sufficient charge
- Bluetooth or automatic time synchronisation is enabled
- The hands are correctly aligned
If issues persist, get in touch with our customer support team.
Many analogue-digital models include a Hand Home Position Adjustment (H-Set) function that can correct hands that have become misaligned due to impact or magnetic exposure.
Find your model-specific instructions
Because every G-SHOCK is different, the most accurate way to learn how to set the time on your G-SHOCK watch is to use the manual created for your specific module number.
Locate the module number engraved on the back of your watch and use the Casio user manual finder to access the correct instructions. Your manual will also confirm whether your watch supports Bluetooth connectivity and which companion app is compatible with your model.
