How Do I Change Timezone Using Adb
Solution 1:
For the list of tzdata values I go to http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
To set the timezone use setprop persist.sys.timezone <TZ> command:
setprop persist.sys.timezone "America/Chicago"Solution 2:
adb shell service call alarm 3 s16 America/Phoenix, which will be effective immediately.
"setprop with persist.sys.timezone" only works after reboot.
Solution 3:
In my (very) limited experience I have been able to edit the /system/build.prop file. I change the line in there that says persist.sys.timezone=America/Sao_Pao or some such drival to persist.sys.timezone=America/Chicago for my timezone CDT. I also changed the lines persist.sys.language=bt and persist.sys.country=AR to persist.sys.language=en and persist.sys.country=US respectively.
There are a few other things you can tweak in the file that will persist after a system restore. You might want to make sure that the build.prop file in a flash image or directory has the correct lines in it.
The /system/property directory seems to hold several text files with a single value. These seem to show up after using setprop but the OS doesn't seem to reflect the changes.
Editing these files usually does require root access either with a term program or the ADB.exe shell. (ADB = Android Device Bridge available in the Android SDK) I found ADB.exe while looking through the firmware downloads at JXD.HK for the S18 MiniPad. In the files.rar dl there is also the SuperUser.apk and a rooted version of busybox and su.
Best of Luck !!!
Solution 4:
Please see this https://gist.github.com/jpkrause/6b7e576894a800d451bf for answer to your question.
So in your case it would be: adb shell setprop persist.sys.timezone America/Chicago
Solution 5:
adb shell service call alarm4 s16 America/Chicago
4 - stands for the fourth function in alarm service implementation.
s16 - stands for string argument type.
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