Timezone IDs from java.time.ZoneId

I’m trying to get the short name for the system default timezone using java.time.ZoneId. However, the API is returning an unexpected value. For example, when the server is in Asia/Kolkata, I am getting IT instead of IST. The same thing is happening when PT is returned instead of PST. Here is my code snippet:

//String timeZone = ZoneId.of("Asia/Kolkata").getDisplayName(TextStyle.SHORT, Locale.ENGLISH);
String timeZone = ZoneId.systemDefault().getDisplayName(TextStyle.SHORT, Locale.ENGLISH);



I need to get the well known short name for the timezone. Can anyone help me with this?

The issue you are facing is due to the fact that ZoneId.systemDefault() returns the system default timezone, which can sometimes be in the format of a three-letter abbreviation that is not well-known or standardized.

To get the well-known short name for the timezone, you can use the java.util.TimeZone class instead. Here is an updated code snippet that should give you the expected results:

String timeZone = TimeZone.getDefault().getDisplayName(false, TimeZone.SHORT, Locale.ENGLISH);

This will give you the short name for the system default timezone in a well-known and standardized format, such as IST for Asia/Kolkata or PST for America/Los_Angeles.