Convert country-state code to time zone in Java

Question

Having country-state code as input, is it possible to get the timezone using Java? For example us-tx -> (GMT-6)

Tried using this answer, however this

Answer 1

This isn't possible - in any language. Many US states have more than one time zone, depending on which part of the state you are referring to:

From Wikipedia:

You can clearly see on this map, many states where the time zone boundary does not follow the state boundary.