How to Set a G Shock Watch

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Casio is a trusted and highly regarded brand of watches, with the rugged Casio G Shock being one of the flagship models.

The G Shock is built around one simple goal, that of durability and longevity. These watches are built to last for decades. In all likelihood, this is one of the most durable wrist watches that you could ever wear.

Although these watches are very durable and high-quality overall, something that may actually be confusing is setting the time, which sounds odd because timekeeping is its main function.

Be aware that there are various G Shock models out there, as this watch was first introduced in 1983, and by 2017 had sold its 100 millionth unit.

Therefore, depending on the model you have, setting the time can be done in a variety of ways. Read on to find out more on how to set a G shock watch.

How to Set a G Shock Watch

G Shock Watch Buttons

The first thing to remember here is that not all G Shock watches are set up the same way, by which we mean the arrangement and names of the buttons. Some models come with “mode,” “adjust,” and “start” buttons.

There are also other G Shock watch models which come with A and B buttons, respectively located at the top right and left of the watch, as well as C and D buttons, respectively on the bottom left and right of the watch.

There are some models which also have a fifth button, in which case the C button is located on the left-middle of the watch, which then means that the bottom left and right buttons become D and E, respectively.

Manual Time Setting with Mode, Adjust, and Start Buttons

If your Casio G Shock watch is a model that comes with the mode, adjust, and start buttons, you can follow the steps outlined below to set the time. This is perhaps the easiest way to manually adjust the time on a watch.

  1. The “adjust” button should be located at the top left of the watch. Press this button firmly and hold it for a second. If the field which displays seconds starts blinking, you are on the right track.
  2. The “mode” button should be located on the bottom left of the watch. Each time you press the mode button, a different field should start to blink (hours, minutes, seconds, date).
  3. Using the “start” button, you can now adjust the numbers in each field. Each time you make an adjustment, such as for the seconds, hit the “mode” button again to move onto the next field.
  4. Once all of the values on the watch are correct, hit the “adjust” button one last time to finish setting the watch.
How to Set a G Shock Watch

Setting Your G Shock Using A, B, C, and D Buttons

If your Casio G Shock has the A/B/C/D button arrangement, follow the steps outlined below to manually set the time on your watch.

  1. Using the “A” button located at the top right, enter the timekeeping mode. Simply hold the button down for a few seconds.
  2. You will now be asked to choose the city code for where you live. Using the top right and bottom right buttons, you can cycle east or west to find your city. This is how the time zone will be set. Use the lower left button to select your city once you have found it, which will then move you onto the next section.
  3. You will then be asked to indicate whether or not it is daylight savings time, and whether or not you want to use a 12 hour or 24 hour clock. Once again, use the top right and bottom right buttons to cycle through the options, and the bottom left button to make a selection.
  4. You will now be asked to set the time, date, month, and day of the week.
  5. Once you have entered all of the correct details, hold down that “A” button one more time to complete the task.

Atomic Time Keeping

Some G Shock watches come with what is called an atomic time keeping feature. This allows the watch to update time all on its own by receiving a radio signal for one of six atomic clocks located around the world.

Simply place your watch in an area that is free of any electric signals, leave it for up to 12 minutes, and the watch should update itself.

Using Your Phone to Set the Time

If you have a G Shock that is Bluetooth enabled, all you have to do to set it is to sync it with your smartphone via the G Shock Connected app or the G Shock+ app.

Open the app on your phone, and on the watch, hold the lower left button for 4 to 5 seconds. The watch should now be connected to your phone and should update itself all on its own.


As you can see, how the time on your G Shock is set will depend on the model you have. Whatever the case may be, setting your G Shock should only take a couple of minutes.

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