Hi @Vikash_kumar_18,
Here TimeZone.SHORT is doing the magic that you are getting, since TimeZone.SHORT is designed to provide you the abbreviation for the time zone so you are getting the abbreviated text without translation but if you use TimeZone.LONG you will be getting a long word representing the time zone so you are getting that long word translated in the local language.
for example TimeZone.SHORT will give you the PST and TimeZone.LONG will return "Pacific Standard Time.".
If you need abbreviation also to be converted in locale text then you will have to use some other API to convert that text to chinese.
Hope this will help.
Umesh Thakur