How to set Australia Sydney Time Zone in My app programatically

Question

I am developing an app that will be used in Australia. I want to fix the timezone of device so that even if the user changes the timezone from Device setting, I will get Australia/Sydney Time Zone. My app should not be dependent of Device set time zone.

I looked for answers but unsuccessful. Whenever I am setting the Time Zone to Australia/Sydney it always returns the Current Location Time Zone.

Looks like this is generally the same as https://stackoverflow.com/a/27540304/208273 — Ryan M, Oct 19 '21 at 06:29

score 2 · Accepted Answer · answered Feb 18 '16 at 15:23

One of causes could be that you didn't allow your app to change time zone. In your AndroidManifest.xml do you have this:

<uses-permission android:name="android.permission.SET_TIME_ZONE"/>

Another approach would be not to change time zone but change time format to extract time for different time zone:

Calendar calendar = Calendar.getInstance();       
SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy hh:mm:ss z");
sdf.setTimeZone(TimeZone.getTimeZone("Australia/Sydney"));
String myTime=sdf.format(calendar.getTime());

How to set Australia Sydney Time Zone in My app programatically

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