1 G-Shock Button Arrangements. 2 Changing The Time. Figuring out how to change time on a G-Shock watch is difficult and frustrating. One might not have the manual, or just can't be bothered reading it! G-watch zone has you covered step by step guide how to adjust the time on G-Shock GA-100. To change the time zone on your G-Shock timepiece, you will need to press the mode button until you see the abbreviation, 'TPE' appear on the face of your watch. Following this, your watch should be in word time mode. Gshock GW-9400 Rangeman - Watch Setting Tutorial. How To set Any Casio G Shock Watch? (Special for United Kingdom Time Zone)Easy step by step simple instructions on how to set the date (month Tutorial video on how to change (adjust) the time zone on a Casio Gshock after travelling to a new country or a different time zone. I have shown 2 different ways of changing the Step 1: Press and hold the top left button of Casio G-Shock wrist watch while in regular Timekeeping Mode. Step 2: Wait for the City Code on the display to start flashing, indicating that you have entered the correct setting screen. Step 3: Use the bottom right button on the Casio G-Shock to highlight the desired City Code for your time zone. 1. Hold down the (A) button for about two seconds. [SET Hold] will appear, and then the time zone setting will flash. 2. Rotate the rotary switch to change the time zone. For information about time zones, see the "City Name List". .

casio g shock time zone change