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.
Changing the Home City Summer Time Setting; Connection Connecting with a Phone; Unpairing; If you purchase another phone; Dual Time; Selecting a Time Zone; Configuring the Summer Time Setting (Dual Time) Swapping the Home City Time and World Time (Dual Time) Using the Diving Function; Measuring Elapsed Dive Time; Measuring Elapsed Surface Interval
Current models of G-shock change the time zone automatically, so the first thing you are prompted to do is choose a city code for where you live or at least for a city in the same time zone.
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casio g shock time zone change